WO2022211206A1 - 렌즈 구동 장치 - Google Patents
렌즈 구동 장치 Download PDFInfo
- Publication number
- WO2022211206A1 WO2022211206A1 PCT/KR2021/016420 KR2021016420W WO2022211206A1 WO 2022211206 A1 WO2022211206 A1 WO 2022211206A1 KR 2021016420 W KR2021016420 W KR 2021016420W WO 2022211206 A1 WO2022211206 A1 WO 2022211206A1
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- WO
- WIPO (PCT)
- Prior art keywords
- magnet
- disposed
- coil
- lens
- holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
- G02B7/102—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens controlled by a microcomputer
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0007—Movement of one or more optical elements for control of motion blur
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0046—Movement of one or more optical elements for zooming
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0053—Driving means for the movement of one or more optical element
- G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils
Definitions
- This embodiment relates to a lens driving device.
- a camera device is a device that takes a picture or a video of a subject, and is installed in an optical device such as a smartphone, a drone, or a vehicle.
- an optical image stabilization (OIS) function that corrects image shake caused by user movement, and automatic adjustment of the distance between the image sensor and the lens to align the focal length of the lens
- OIS optical image stabilization
- zoom function that increases or decreases the magnification of a distant subject through an auto focus (AF) function and a zoom lens.
- the present embodiment intends to provide a lens driving device that provides continuous zoom and autofocus functions.
- Another object of the present invention is to provide a lens driving device with improved driving performance.
- Another object of the present invention is to provide a lens driving device having a minimized size.
- the technical problem to be solved by the present invention is to provide a lens driving device driven by a magnet including a gap and a camera module including the same.
- the lens driving device includes a fixing unit; a moving part disposed in the fixed part; a driving magnet disposed on the moving part; a coil disposed at a position corresponding to the driving magnet; a guide rail coupled to the fixing part; and a ball disposed between the guide rail and the moving part, wherein the fixing part includes a housing including a protrusion and a cover coupled to the protrusion of the housing, wherein the protrusion of the housing passes through the guide rail Thus, it can be inserted into the cover.
- the protrusion of the housing includes a first portion disposed on the guide rail, and a second portion extending from the first portion and disposed on the cover, wherein the second portion of the protrusion of the housing comprises the first portion It may have a width smaller than the portion.
- the protrusion of the housing may include a first protrusion and a second protrusion, and the second portion of the first protrusion may have a greater width than the second portion of the second protrusion.
- the first portion of the first protrusion and the first portion of the second protrusion may have the same width.
- the guide rail includes four holes in which the protrusions of the housing are disposed, and two of the four holes of the guide rail are formed to have a shape and a diameter corresponding to the protrusions of the housing, and The other two holes among the four holes may have a different shape from the protrusion of the housing or a larger diameter than the protrusion of the housing.
- the cover may include two holes and two grooves in which the protrusions of the housing are disposed.
- One of the two holes of the cover is formed with a shape and a diameter corresponding to the projection of the housing, and the other of the two holes of the cover has a different shape from the projection of the housing or larger than the projection of the housing. It can be formed in diameter.
- Each of the two grooves of the cover may be formed in a shape different from the protrusion of the housing or a diameter larger than the protrusion of the housing.
- the moving part may include a rail groove in which the ball is disposed, and the length of the rail groove of the moving part may be 2 to 4 times the diameter of the ball.
- the rail groove of the moving part includes a first rail groove and a second rail groove disposed on one side of the driving magnet, and a third rail groove and a fourth rail groove disposed on the other side of the driving magnet, and the first The rail groove and the second rail groove may be spaced apart from each other by a distance of two to three times the diameter of the ball.
- the guide rail includes a rail groove formed in a position corresponding to the first rail groove and the second rail groove, and the guide rail is planar at a position corresponding to the third rail groove and the fourth rail groove. can be formed.
- the moving part includes a first holder and a second holder, wherein the first holder includes a first surface facing the cover, and a plurality of protrusions formed on the first surface and contacting the cover, and the second
- the holder may include a second surface facing the first holder, and a plurality of protrusions formed on the second surface and contacting the second holder.
- It may include a poron disposed in the fixing portion and in contact with the first holder and the second holder.
- a camera device includes a printed circuit board; an image sensor disposed on the printed circuit board; and a lens driving device.
- the optical device includes a main body; a camera device disposed on the body; and a display disposed on the main body and outputting at least one of an image and an image captured by the camera device.
- a lens driving device includes a housing including a protrusion; a cover coupled to the protrusion of the housing; a holder disposed within the housing; a driving magnet disposed on the holder; a coil disposed at a position corresponding to the driving magnet; a guide rail coupled to the protrusion of the housing; and a ball disposed between the guide rail and the holder, wherein the protrusion of the housing includes a first portion disposed on the guide rail, and a second portion extending from the first portion and disposed on the cover can do.
- the second portion of the protrusion of the housing may have a smaller width than the first portion.
- the protrusion of the housing may include a first protrusion and a second protrusion, and the second portion of the first protrusion may have a greater width than the second portion of the second protrusion.
- the guide rail includes a plurality of holes in which the projections of the housing are disposed, and some of the plurality of holes of the guide rail are formed as positive holes having a shape and diameter corresponding to the projections of the housing, and the guide The remaining part of the plurality of holes of the rail may be formed as a long hole formed in a shape different from that of the protrusion of the housing.
- a lens driving device includes a housing including a protrusion; a cover coupled to the protrusion of the housing; a holder disposed within the housing; a driving magnet disposed on the holder; a coil disposed at a position corresponding to the driving magnet; a guide rail coupled to the protrusion of the housing; and a ball disposed between the guide rail and the holder, wherein the guide rail comprises a hole in which the protrusion of the housing is disposed, and the cover comprises a hole or groove in which the protrusion of the housing is disposed.
- a diameter of the hole of the guide rail may be greater than a diameter of the hole or groove of the cover.
- the lens driving device includes a fixing unit; a first moving part and a second moving part disposed in the fixed part; a first driving magnet disposed on the first moving part; a second driving magnet disposed on the second moving part; a first coil disposed on the fixing part and disposed at a position corresponding to the first driving magnet; and a second coil disposed in the fixing part and disposed at a position corresponding to the second driving magnet, wherein in an optical axis direction, a center of the first coil is disposed in front of a center of the second coil, A portion of the first coil may overlap the second coil in a first direction perpendicular to the optical axis direction.
- the first coil may include a portion that does not overlap the second coil in the first direction.
- the center of the first coil may be disposed at a height corresponding to the center of the second coil.
- the fixing part includes a housing and a first lens disposed in the housing, and the first moving part includes a first holder disposed in the housing and a second lens disposed in the first holder, and the second The moving part may include a second holder disposed in the housing and a third lens disposed in the second holder, and the second lens may be disposed between the first lens and the third lens.
- the first coil may have the same size as the second coil and may be disposed closer to the first lens than the second coil.
- a portion of the first driving magnet may overlap the second driving magnet in the first direction.
- the first driving magnet may have the same size as the second driving magnet and may be disposed closer to the first lens than the second driving magnet.
- the first driving magnet includes a first magnet part having an N pole and an S pole, respectively. and a second magnet part, and a neutral part or a gap disposed between the first magnet part and the second magnet part, and in the optical axis direction, the size of the neutral part or the gap is the size of the hollow of the first coil. It may be smaller than the distance between the first Hall sensor and the second Hall sensor.
- the first driving magnet includes a first magnet part and a second magnet part each having an N pole and an S pole, and a neutral part or a gap disposed between the first magnet part and the second magnet part,
- the first coil includes a first portion facing the first magnet portion and a second portion facing the second magnet portion, wherein the first portion of the first coil is disposed in the first direction with the second magnet
- the second portion of the first coil may not overlap the first portion and the second portion of the first coil may not overlap the first magnet portion in the first direction.
- the fixing part includes a first yoke that is a magnetic material, and the first driving magnet is disposed to have an attractive force with the first yoke, and in a second direction perpendicular to the optical axis direction and the first direction, the first yoke A width of the first yoke may be greater than a width of the first surface of the first driving magnet facing the first surface of the first yoke.
- the second yoke may surround at least three surfaces of the first driving magnet.
- the first moving part moves to perform a zoom function
- the second moving part moves to perform an autofocus function
- a camera device includes a printed circuit board; an image sensor disposed on the printed circuit board; Reflective member driving device; and a lens driving device disposed between the image sensor and the reflective member driving device.
- the camera device includes: a driver IC disposed on the printed circuit board and electrically connected to the first coil and the second coil; a substrate electrically connecting the printed circuit board and the reflective member driving device; and a temperature sensor disposed on the substrate.
- the temperature sensor may be disposed adjacent to the first coil or the second coil.
- the optical device includes a main body; a camera device disposed on the body; and a display disposed on the main body and outputting at least one of an image and an image captured by the camera device.
- a lens driving device includes a fixing unit including a first lens; a first moving part disposed in the fixed part and including a second lens; a second moving part disposed in the fixing part and including a third lens; a first driving magnet disposed on the first moving part; a second driving magnet disposed on the second moving part; a first coil disposed at a position corresponding to the first driving magnet; and a second coil disposed at a position corresponding to the second driving magnet, wherein the first driving magnet is disposed closer to the first lens than the second driving magnet, and a portion of the first driving magnet is an optical axis.
- the second driving magnet may overlap in a first direction perpendicular to the direction.
- the first driving magnet may include a portion that does not overlap the second driving magnet in the first direction.
- the first coil may be disposed closer to the first lens than the second coil.
- the first driving magnet may be formed to have the same size as the second driving magnet.
- a lens driving device includes a housing; a first holder and a second holder disposed in the housing; a first lens disposed in the housing; a second lens disposed on the first holder; a third lens disposed on the second holder; a first driving magnet disposed on the first holder; a second driving magnet disposed on the second holder; a first coil disposed at a position corresponding to the first driving magnet; and a second coil disposed at a position corresponding to the second driving magnet, wherein the first coil is disposed closer to the first lens than the second coil, and a portion of the first coil is perpendicular to the optical axis direction.
- the second coil may overlap in the first direction, and another portion of the first coil may not overlap the second coil in the first direction.
- the lens driving device includes a fixing unit; a moving part disposed in the fixed part; a driving magnet disposed on the moving part; a substrate disposed on the fixing part; a coil disposed on the substrate and disposed at a position corresponding to the driving magnet; and an EEPROM disposed on the substrate, wherein the EEPROM may be electrically connected to the coil.
- the moving part includes a first moving part and a second moving part
- the driving magnet includes a first driving magnet disposed in the first moving part and a second driving magnet disposed in a second moving part
- the substrate includes a first substrate and a second substrate spaced apart from each other on opposite sides with respect to the moving part, wherein the coil includes a first coil disposed on the first substrate and disposed at a position corresponding to the first driving magnet; , a second coil disposed on the second substrate and disposed at a position corresponding to the second driving magnet.
- the second coil and the EEPROM may be disposed on an inner surface of the second substrate.
- the fixing part may include a housing including a groove, and the EEPROM may be disposed in the groove of the housing.
- the moving part includes a holder and a lens disposed on the holder, the holder includes two projections spaced apart from each other in an optical axis direction, and an upper surface of each of the two projections includes a flat surface and an inclined surface inclined from the plane.
- the fixing part includes a housing and a first lens disposed on the housing, the first movable part includes a first holder and a second lens disposed on the first holder, and the second movable part includes a second holder and a third lens disposed on the second holder, wherein the first moving part and the second moving part are movable separately.
- Each of the first to third lenses may include a plurality of lenses.
- the second lens and the third lens may be formed of a D-cut lens.
- EEPROM electrically erasable read-only memory
- a camera device includes a printed circuit board; an image sensor disposed on the printed circuit board; and a lens driving device, wherein the substrate is formed separately from the printed circuit board and may be electrically connected through a conductive member.
- the camera device may include a driver IC electrically connected to the coil, and the driver IC may be disposed on the printed circuit board.
- the substrate includes a plurality of terminals coupled to the printed circuit board through the conductive member, a first area in which the plurality of terminals are disposed, and a second area in which the coil is disposed, wherein the first area is
- the plurality of terminals may be coupled to the printed circuit board while being bent inward with respect to the second region.
- the fixing part may include a housing including an inclined surface, and the first area may extend along the inclined surface of the housing to be inclined with respect to the second area.
- the camera device may include a sensor base disposed on the printed circuit board; and a filter disposed on the sensor base, wherein the filter is disposed opposite the image sensor with respect to the sensor base, and a portion of the filter may protrude from the sensor base.
- the optical device includes a main body; a camera device disposed on the body; and a display disposed on the main body and outputting at least one of an image and an image captured by the camera device.
- a lens driving device includes a housing; a first holder and a second holder disposed in the housing; a first driving magnet disposed on the first holder; a second driving magnet disposed on the second holder; a first substrate and a second substrate disposed in the housing and spaced apart from each other on opposite sides with respect to the first holder and the second holder; a first coil disposed on the first substrate; a second coil disposed on the second substrate; and an EEPROM disposed on at least one of the first substrate and the second substrate and electrically connected to the first coil and the second coil.
- the EEPROM may individually control the first coil and the second coil.
- the second coil and the EEPROM may be disposed on an inner surface of the second substrate, and the EEPROM may be disposed outside the second coil.
- Each of the first holder and the second holder may include two protrusions spaced apart from each other in an optical axis direction, and an upper surface of each of the two protrusions may include a flat surface and an inclined surface inclined from the plane.
- a camera device includes a printed circuit board; an image sensor disposed on the printed circuit board; housing; a first holder and a second holder disposed in the housing; a first driving magnet disposed on the first holder; a second driving magnet disposed on the second holder; a substrate electrically connected to the printed circuit board and disposed in the housing; a first coil and a second coil disposed on the substrate; an EEPROM disposed on the substrate and electrically connected to the first coil and the second coil; and a driver IC disposed on the printed circuit board and electrically connected to the first coil and the second coil.
- a lens driving apparatus includes a lens barrel; and a magnet disposed in the lens barrel and including a first pole, a gap, and a second pole, wherein the length of the gap is set in the magnet according to a movement stroke length of the magnet.
- the length of the gap may be set to 1/2 of the movement stroke length in the movement direction of the magnet.
- the length of the gap may be set within a tolerance range of 1/2 of the movement stroke length in the moving direction of the magnet.
- the tolerance range may be 10%.
- the length of the gap may be set to 1/4 to 3/4 of the movement stroke length in the movement direction of the magnet.
- a position measuring unit for measuring the position of the magnet, the magnet, a driving magnet for driving the lens barrel and a sensing magnet for measuring the position of the lens barrel according to the measurement of the position measuring unit It can perform a function. .
- a camera module includes: a plurality of lens groups including at least one lens group fixed in position and at least one movable lens group; a lens barrel in which the plurality of lens groups are disposed; a magnet disposed on the lens barrel, the magnet including a first pole, an air gap, and a second pole; and a position measuring unit for measuring the position of the magnet, wherein the length of the void may be set in the magnet according to the movement stroke length of the magnet.
- the length of the gap may be set within a tolerance range of 1/2 of the movement stroke length in the moving direction of the magnet.
- the tolerance range may be 10%.
- magnification may be continuously adjusted according to a distance between two lens groups among the plurality of lens groups.
- the driving performance such as linearity and hysteresis may be improved by forming the ball rolling part of the moving part to be long by a predetermined multiple of the ball diameter.
- noise due to collision between the first to third group lenses and the barrel can be minimized and damage can be prevented.
- the two moving parts for performing the zoom function and the autofocus function can be individually moved, and the space for movement can be minimized.
- compensation according to the degree of heat generation may be applied.
- the calibration data (Cal. Data) performed in the previous process is used in the manufacturing step through the EEPROM of this embodiment, the time required for porting the software can be minimized. Through this, the mass productivity of the camera device may be improved.
- the substrate on which the coil is disposed and the substrate on which the image sensor is disposed may be formed as separate substrates and may be connected through solder in the assembly process.
- the size of the camera device can be minimized because the substrate and the solder for soldering the substrate do not protrude from the substrate.
- linearity, hysteresis, and resolution may be improved by using a magnet in which voids are formed.
- FIG. 1 is a perspective view of a camera device according to the present embodiment.
- FIG. 2 is a bottom perspective view of the camera device according to the present embodiment.
- FIG 3 is a plan view of the camera device according to the present embodiment.
- FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3 .
- FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3 .
- FIG. 6 is a cross-sectional view taken along line C-C of FIG. 3 .
- FIG. 7 is an exploded perspective view of the camera device according to the present embodiment.
- FIG 8 is a perspective view in which a cover member is omitted in the camera device according to the present embodiment.
- FIG. 9 is a perspective view of a reflective member driving device according to the present embodiment.
- FIG. 10 is an exploded perspective view of the reflective member driving device according to the present embodiment.
- FIG. 11 is a bottom exploded perspective view of the reflective member driving apparatus according to the present embodiment.
- FIG 12 and 13 are views for explaining a structure related to the moving plate of the reflective member driving apparatus according to the present embodiment.
- FIG. 14 is a perspective view of a state in which the configuration of the moving part of the reflective member driving apparatus according to the present embodiment is omitted.
- FIG. 15 is a perspective view of the reflective member driving device of FIG. 14 in a state in which the configuration of the substrate and the like are omitted.
- 16 is a perspective view illustrating a fixing part and related configuration of the reflective member driving device according to the present embodiment.
- FIG. 17 is a perspective view illustrating a state in which a moving part is disposed on a fixed part in the reflective member driving apparatus according to the present embodiment.
- FIG. 18 is an exploded perspective view showing the related shapes of the mover rigid and the fixing part of the reflective member driving apparatus according to the present embodiment.
- 19 is a perspective view illustrating an arrangement state of the second magnet of the fixing part of the reflective member driving apparatus according to the present embodiment.
- 20 is a perspective view illustrating a coupling state between the holder and the mover rigid of the reflective member driving device according to the present embodiment.
- Fig. 21 is a front view showing the holder of the reflective member driving device according to the present embodiment.
- FIG. 22 is a perspective view illustrating a mover rigid, a first magnet, and a second magnet of the reflective member driving apparatus according to the present embodiment.
- FIG. 23 is a perspective view illustrating a first magnet, a second magnet, and a driving unit of the reflective member driving apparatus according to the present embodiment.
- FIG. 24 is a perspective view illustrating a first magnet, a second magnet, and a driving magnet of the reflective member driving apparatus according to the present embodiment.
- 25 is a side view illustrating the first magnet, the second magnet, and the driving magnet of the reflective member driving apparatus according to the present embodiment.
- 26 is a cross-sectional view of the reflective member driving device according to the present embodiment.
- FIG. 27 is a cross-sectional perspective view of a reflective member driving device according to a modification.
- FIG. 28 is a perspective view (a) and a rear side view (b) illustrating the first magnet and the second magnet of the reflective member driving apparatus according to the present embodiment.
- 29 is a perspective view illustrating a state in which the moving plate is disposed on the moving part of the reflective member driving apparatus according to the present embodiment.
- FIGS. 30 and 31 are views for explaining a tilt with respect to the x-axis of the reflective member driving apparatus according to the present embodiment.
- 32 to 34 are views for explaining a tilt about the y-axis of the reflective member driving apparatus according to the present embodiment.
- 35 is a perspective view of the lens driving device according to the present embodiment.
- FIG. 36 is a perspective view in which a part of the lens driving apparatus according to the present embodiment is omitted.
- FIG. 37 is a perspective view of the lens driving device in the state shown in FIG. 36 as viewed from another direction.
- FIG. 38 is a perspective view in which a part of the lens driving apparatus according to the present embodiment is omitted.
- Fig. 39 is a perspective view of the lens driving device according to the present embodiment, in which components such as a substrate and a coil are omitted.
- FIG. 40 is a perspective view of a state in which the first lens and related components are omitted in the lens driving device of the state shown in FIG. 39 .
- 41 is a perspective view and a partially enlarged view of a partial configuration of the lens driving apparatus according to the present embodiment.
- FIG. 42 is a view for explaining an arrangement structure of a coil and a sensor of the lens driving device according to the present embodiment.
- FIG. 43 is a perspective view illustrating a state in which the second housing is omitted in the lens driving device of the state shown in FIG. 39 .
- FIG. 44 is a perspective view of a state in which a guide rail is omitted from the lens driving device of the state shown in FIG. 43 .
- 46 is a perspective view of a first moving part and a second moving part and related configurations of the lens driving device according to the present embodiment.
- FIG 47 is a perspective view of a second moving part and related components of the lens driving device according to the present embodiment.
- FIG 48 is an exploded perspective view of the lens driving device according to the present embodiment.
- FIG. 49 is a perspective view of a second housing of the lens driving device according to the present embodiment.
- 50 and 51 are exploded perspective views of a part of the lens driving apparatus according to the present embodiment.
- FIG 52 is a cross-sectional view of the lens driving device according to the present embodiment.
- FIG. 53 is a cross-sectional view of a part of the lens driving apparatus according to the present embodiment.
- FIG. 54 is a view showing the arrangement of the EEPROM of the lens driving device according to the present embodiment.
- FIG. 55 is a view showing a double protrusion of the housing of the lens driving device according to the present embodiment and a related coupling structure.
- Fig. 56 is a view showing a cover of the lens driving device according to the present embodiment.
- 57 is a side view of the moving part and the driving magnet of the lens driving apparatus according to the present embodiment as viewed from the side.
- FIG. 58 is a cross-sectional view showing a cover and related configuration of the lens driving device according to the present embodiment.
- 59 is a cross-sectional view showing the first moving part and related configuration of the lens driving device according to the present embodiment.
- Fig. 60 is a cross-sectional view showing the second moving part and the related configuration of the lens driving device according to the present embodiment.
- 61 is an exploded perspective view of the lens driving device according to the present embodiment.
- FIG. 62 is a cross-sectional view illustrating a height difference between the first coil and the second coil of the lens driving device according to the present embodiment.
- FIG. 63 is a cross-sectional perspective view of the first moving part and the first driving part of the lens driving device according to the present embodiment.
- 64 is a cross-sectional view of the first moving part and the first driving part of the lens driving device according to the present embodiment.
- 65 is a cross-sectional view of the lens driving device according to the present embodiment.
- 66 to 68 are diagrams for explaining implementation of a zoom function and an autofocus function of the lens driving apparatus according to the present embodiment.
- 69 is a perspective view of a partial configuration of the camera device according to the present embodiment.
- 70 is an exploded perspective view of an image sensor, a filter, and related components of the camera device according to the present embodiment.
- 71 is a perspective view of the front side of the optical device according to the present embodiment.
- FIG. 72 is a perspective view of the rear surface of the optical device according to the present embodiment.
- 73 is a block diagram of a lens driving device according to an embodiment of the present invention.
- FIG. 74 shows a magnet according to an embodiment of the present invention.
- 75 and 76 are diagrams for explaining a magnet according to an embodiment of the present invention.
- 77 is a block diagram of a camera module according to an embodiment of the present invention.
- FIG. 78 is a block diagram of a camera module according to another embodiment of the present invention.
- 79 shows an implementation example of a camera module according to an embodiment of the present invention.
- a component when it is described that a component is 'connected', 'coupled', or 'connected' to another component, the component is directly 'connected', 'coupled', or 'connected' to the other component. In addition to the case, it may include a case of 'connected', 'coupled', or 'connected' by another element between the element and the other element.
- FIG. 9 is a perspective view of the reflective member driving device according to the present embodiment
- FIG. 10 is an exploded perspective view of the reflective member driving device according to the present embodiment
- FIG. 11 is a bottom exploded perspective view of the reflective member driving device according to the present embodiment.
- 12 and 13 are views for explaining the structure related to the moving plate of the reflective member driving device according to the present embodiment
- FIG. 14 is a state in which the configuration of the moving part of the reflective member driving device according to the present embodiment is omitted.
- FIG. 16 is a perspective view of a state in which the configuration of the substrate and the like are omitted
- FIG. 17 is a perspective view showing a state in which the moving part is arranged in the fixed part in the reflective member driving device according to this embodiment
- Figure 18 is the related shape of the mover rigid and the fixed part of the reflective member driving device according to this embodiment.
- FIG. 19 is a perspective view showing an arrangement state of the second magnet of the fixing part of the reflective member driving device according to the present embodiment
- FIG. 20 is a holder and a mover of the reflective member driving device according to the present embodiment.
- FIG. 21 is a front view showing the holder of the reflective member driving device according to the present embodiment
- FIG. 22 is the mover rigid, the first magnet and the reflective member driving device according to the present embodiment.
- a perspective view illustrating a second magnet FIG. 23 is a perspective view illustrating a first magnet, a second magnet, and a driving unit of the reflective member driving device according to the present embodiment
- FIG. 24 is a reflective member driving device according to the present embodiment.
- a perspective view showing a first magnet, a second magnet and a driving magnet FIG. 25 is a side view showing the first magnet, the second magnet and the driving magnet of the reflective member driving device according to the present embodiment
- FIG. 26 is this embodiment
- a cross-sectional view of a reflective member driving device according to an example FIG. 27 is a cross-sectional perspective view of a reflective member driving device according to a modification
- FIG. 28 is a first magnet and a second magnet of the reflective member driving device according to the present embodiment.
- Perspective (a) and after It is a side view (b)
- FIG. 29 is a perspective view showing a state in which the moving plate is disposed on the moving part of the reflective member driving apparatus according to the present embodiment.
- the reflective member driving apparatus 1000 may perform an optical image stabilization (OIS) function.
- the reflective member driving apparatus 1000 may perform a hand shake correction function.
- the reflective member driving apparatus 1000 may move the reflective member 1220 .
- the reflective member driving apparatus 1000 may tilt the reflective member 1220 .
- the reflective member driving apparatus 1000 may tilt the reflective member 1220 and the reflective member 1220 about two axes.
- the reflective member driving apparatus 1000 may tilt the reflective member 1220 about the x-axis and the y-axis.
- the x-axis and the y-axis may be perpendicular to each other.
- the reflective member driving device 1000 may be a reflective member actuator.
- the reflective member driving device 1000 may be an OIS actuator.
- the reflective member driving device 1000 may be an OIS driving device.
- the reflective member driving device 1000 may be a prism driving device.
- the reflective member driving device 1000 may be an actuator.
- the reflective member driving device 1000 may be an actuator device.
- the reflective member driving device 1000 may be an actuator driving device.
- the reflective member driving device 1000 may be a tilting device.
- the reflective member driving apparatus 1000 may include a fixing unit 1100 .
- the fixed part 1100 may be a relatively fixed part when the moving part 1200 moves.
- the fixing unit 1100 may accommodate at least a portion of the moving unit 1200 .
- the fixing unit 1100 may be disposed outside the moving unit 1200 .
- the reflective member driving apparatus 1000 may include a housing 1110 .
- the fixing part 110 may include a housing 1110 .
- the housing 1110 may be disposed outside the holder 1210 .
- the housing 1110 may accommodate at least a portion of the holder 1210 .
- the housing 1110 may include an opening or a hole in the upper plate and any one of the side plates for securing a path of light.
- the housing 1110 may include an upper plate, a lower plate, and a plurality of side plates.
- the housing 1110 may include a first portion 1111 .
- the first portion 1111 may be formed on a side plate of the housing 1110 .
- a moving plate 1300 may be disposed on the first portion 1111 .
- the first portion 1111 may be disposed between the holder 1210 and the mover rigid 1230 .
- the first portion 1111 may be disposed between the mover rigid 1230 and the moving plate 1300 .
- a second magnet 1120 may be disposed on the first portion 1111 .
- the moving plate 1300 may be disposed on one side of the first part 1111 and the second magnet 1120 may be disposed on the other side of the opposite side.
- a portion of the housing 1110 may be disposed between the moving plate 1300 and the mover rigid 1230 .
- the housing 1110 may include a second portion 1112 .
- the second portion 1112 may be disposed on the holder 1210 .
- the second part 1112 may come into contact with the holder 1210 when the holder 1210 moves upward.
- the second portion 1112 may overlap the holder 1210 in the moving direction of the holder 1210 .
- the second part 1112 may be a top plate of the housing 1110 .
- the housing 1110 may include a third portion 1113 .
- the third portion 1113 may be disposed under the holder 1210 .
- the third portion 1113 may be in contact with the holder 1210 when the holder 1210 moves downward.
- the third portion 1113 may overlap the holder 1210 in the moving direction.
- the third portion 1113 may be a lower plate of the housing 1110 .
- the housing 1110 may include a hole 1114 .
- the hole 1114 may be a mover rigid through hole.
- the hole 1114 may be formed in the side plate of the housing 1110 .
- the hole 1114 may be formed in the first portion 1111 of the housing 1110 .
- a mover rigid 1230 may be disposed in the hole 1114 .
- the mover rigid 1230 may be disposed to pass through the hole 1114 .
- the hole 1114 may be formed to be larger than the moving space of the mover rigid 1230 so as not to interfere with the mover rigid 1230 .
- the housing 1110 may include two holes 1114 into which the mover rigid 1230 is inserted.
- the housing 1110 may include a groove 1115 .
- the groove 1115 may be a moving plate first protrusion receiving groove.
- a first protrusion 1310 of the moving plate 1300 may be disposed in the groove 1115 .
- the groove 1115 may accommodate at least a portion of the moving plate 1300 .
- the groove 1115 may restrict movement except for rotation of the first protrusion 1310 of the moving plate 1300 .
- the groove 1115 may include an inclined surface in contact with the first protrusion 1310 of the moving plate 1300 .
- the inclined surface may include a plurality of inclined surfaces.
- the housing 1110 may include a plurality of grooves 1115 in which the plurality of first protrusions 1310 are disposed.
- the plurality of grooves 1115 of the housing 1110 includes a first groove 1115-1 in four-point contact with one of the plurality of first projections 1310 and a plurality of first projections ( 1310) may include a second groove 1115-2 contacting the other first protrusion 1310 at two points.
- the groove 1115 may include a first groove 1115 - 1 .
- the first groove 1115 - 1 may be a four-point contact groove.
- the first groove 1115 - 1 may contact one of the two first protrusions 1310 of the moving plate 1300 at four points. Through this, the first groove 1115 - 1 of the housing 1110 may constrain movement in four directions, up, down, left, and right except for rotation of one of the first protrusions 1310 of the moving plate 1300 .
- the groove 1115 may include a second groove 1115 - 2 .
- the second groove 1115 - 2 may be a two-point contact groove.
- the second groove 1115 - 2 may contact the other one of the two first protrusions 1310 of the moving plate 1300 at two points.
- the second groove 1115 - 2 of the housing 1110 may constrain the movement of the other one of the first protrusions 1310 of the moving plate 1300 in two directions.
- the second groove 1115 - 2 of the housing 1110 may constrain the vertical movement of the first protrusion 1310 of the moving plate 1300 and may not restrict the movement in the left and right directions.
- the housing 1110 may include a protrusion 1116 .
- the protrusion 1116 may be coupled to the lens driving device 2000 .
- the protrusion 1116 may be formed on a side plate of the housing 1110 .
- the protrusion 1116 may be formed on a side of the housing 1110 facing the lens driving device 2000 .
- the protrusion 1116 may include a trapezoidal cross-section.
- the protrusion 1116 may be coupled to the housing 2110 of the lens driving device 2000 .
- the protrusion 1116 may be inserted into the first groove 2111 of the housing 2110 of the lens driving device 2000 .
- the protrusion 1116 may be coupled to the housing 2110 of the lens driving device 2000 by an adhesive.
- the housing 1110 may include a protrusion 1117 .
- the protrusion 1117 may be coupled to the lens driving device 2000 .
- the protrusion 1117 may be formed on the side plate of the housing 1110 .
- the protrusion 1117 may be formed on a side of the housing 1110 facing the lens driving device 2000 .
- the protrusion 1117 may have a circular cross-section.
- the protrusion 1117 may be coupled to the housing 2110 of the lens driving device 2000 .
- the protrusion 1117 may be inserted into the second groove 2112 of the housing 2110 of the lens driving device 2000 .
- the protrusion 1117 may be coupled to the housing 2110 of the lens driving device 2000 by an adhesive.
- the housing 1110 may include a protrusion 1118 .
- the protrusion 1118 may be a mover-rigid contact protrusion.
- the protrusion 1118 may be formed on the second surface of the housing 1110 .
- the protrusion 1118 may be in contact with the mover rigid 1230 .
- the protrusion 1118 may be formed on the inner circumferential surface of the hole 1114 of the housing 1110 through which the mover rigid 1230 passes.
- the protrusion 1118 may be formed to contact at least one of a lower surface and an upper surface of the mover rigid 1230 when the mover rigid 1230 is moved.
- the protrusion 1118 may prevent the mover rigid 1230 from being detached from the original position too much.
- the protrusion 1118 may include a plurality of protrusions.
- the protrusion 1118 may include two protrusions.
- the two protrusions may be spaced apart from each other by the same distance as the second groove disposed below among the grooves 1119 of the housing 1110 .
- the body portion of the mover-rigid 1230 moves downward, the body portion of the mover-rigid 1230 may contact the two protrusions 1118 of the housing 1110 .
- the housing 1110 may include a groove 1119 . At least a portion of the protrusion 1231 may be disposed in the groove 1119 . A portion of the protrusion 1231 may be disposed in the groove 1119 .
- the groove 1119 may be opened to the outside of the housing 1110 .
- the groove 1119 may be larger than the protrusion 1231 of the mover rigid 1230 .
- the groove 1119 may be spaced apart from the protrusion 1231 of the mover rigid 1230 . In an initial state in which power is not applied to the driving unit 1400 , the groove 1119 may be spaced apart from the protrusion 1231 of the mover rigid 1230 .
- the groove 1119 may be spaced apart from the protrusion 1231 of the mover-rigid 1230 .
- the groove 1119 of the housing 1110 and the protrusion 1231 of the mover rigid 1230 may be contactable by an external impact. That is, the groove 1119 of the housing 1110 and the protrusion 1231 of the mover-rigid 1230 do not come into contact within the normal driving range of the mover-rigid 1230. have.
- the groove 1119 of the housing 1110 and the protrusion 1231 of the mover rigid 1230 may perform a stopper function upon impact.
- the groove 1119 may include a first groove portion and a second groove portion recessed from the first groove portion.
- the groove 1119 may be formed as a two-stage groove.
- the groove 1119 may have a double groove shape.
- a damper 1500 may be disposed in the second groove portion.
- a contact area between the damper 1500 and the housing 1110 may be increased by the second groove.
- the second groove may prevent flow of the damper 1500 .
- the groove 1119 may include a plurality of grooves.
- the groove 1119 may include a first groove in which at least a portion of the first protruding area of the mover rigid 1230 is disposed, and a second groove in which at least a portion of the second protruding area is disposed.
- the housing 1110 may include a first surface facing the upper surface of the body portion of the mover rigid 1230 .
- the housing 1110 may include a second surface facing the lower surface of the body portion of the mover rigid 1230 .
- the housing 1110 may include a first groove formed on the first surface of the housing 1110 and a second groove formed on the second surface of the housing 1110 .
- the reflective member driving apparatus 1000 may include a second magnet 1120 .
- the fixing unit 1100 may include a second magnet 1120 .
- the second magnet 1120 may be disposed on the fixing part 1100 .
- the second magnet 1120 may be a second repulsive force magnet.
- the second magnet 1120 may be disposed in the housing 1110 .
- the second magnet 1120 may be disposed on the first portion 1111 of the housing 1110 .
- the second magnet 1120 may be disposed opposite to the moving plate 1300 with respect to the first portion 1111 of the housing 1110 .
- the second magnet 1120 may be disposed between the first magnet 1240 and the moving plate 1300 .
- the second magnet 1120 may be disposed to face the first magnet 1240 .
- the second magnet 1120 may generate a repulsive force with the first magnet 1240 .
- the second magnet 1120 may be disposed to generate a repulsive force with the first magnet 1240 .
- the second magnet 1120 may be disposed to face the same polarity as that of the first magnet 1240 .
- the second magnet 1120 may push the first magnet 1240 out.
- At least a portion of the second magnet 1120 may be disposed between the first magnet 1240 and the moving plate 1300 .
- the second magnet 1120 may be disposed between the first magnet 1240 and the moving plate 1300 .
- the center of the second magnet 1120 may be disposed at the same height as the center of the first magnet 1240 .
- the driving unit 1400 may tilt the moving unit 1200 based on the x-axis and the y-axis perpendicular to each other of the moving plate 1300 .
- a horizontal axis passing through the center of the second magnet 1120 may be arranged to be eccentric with the x-axis of the moving plate 1300 .
- the horizontal axis may be parallel to the x-axis.
- the center of the second magnet 1120 may not be eccentric with the y-axis.
- the center of the second magnet 1120 may be arranged to coincide with the y-axis.
- the center of the second magnet 1120 may be disposed at the same height as the center of the first magnet 1240 .
- the center of the second magnet 1120 may be disposed at the same height as the center of the first magnet 1240 .
- the center of gravity of the second magnet 1120 may be disposed at the same height as the center of gravity of the first magnet 1240 .
- the second magnet 1120 may include a second surface disposed opposite to the first surface of the second magnet 1120 .
- the first magnet 1240 may include a first surface facing the second surface of the second magnet 1120 .
- the first surface of the first magnet 1240 may have the same polarity as the second surface of the second magnet 1120 .
- the second magnet 1120 may be disposed so as not to overlap the first driving magnet 1411 . In a direction in which the first surface of the second magnet 1120 faces, the second magnet 1120 may be disposed so as not to overlap the first driving magnet 1411 .
- the reflective member driving apparatus 1000 may include a substrate 1130 .
- the fixing unit 1100 may include a substrate 1130 .
- the substrate 1130 may be a flexible printed circuit board (FPCB).
- the substrate 1130 may be a flexible printed circuit board.
- the substrate 1130 may be disposed in the housing 1110 .
- the reflective member driving apparatus 1000 may include a SUS 1140 .
- the fixing unit 1100 may include a suspension 1140 .
- the suspension 1140 may be disposed on the substrate 1130 .
- the suspension 1140 may be disposed on the outer surface of the substrate 1130 .
- the suspension 1140 may reinforce the strength of the substrate 1130 .
- the reflective member driving apparatus 1000 may include a gyro sensor 1150 .
- the fixing unit 1100 may include a gyro sensor 1150 .
- the gyro sensor 1150 may detect shaking of the camera device 10 .
- the shake detected by the gyro sensor 1150 may be offset through the hand shake correction function.
- the gyro sensor 1150 may be disposed on the substrate 1130 .
- the gyro sensor 1150 may be disposed on the outer surface of the substrate 1130 .
- the reflective member driving apparatus 1000 may include a plate 1160 .
- the fixing unit 1100 may include a plate 1160 .
- the plate 1160 may be coupled to the housing 1110 .
- the plate 1600 may cover the mover rigid 1230 .
- the plate 1600 may cover the mover rigid 1230 .
- the plate 1160 may be disposed to cover the open portion of the housing 1110 .
- the plate 1160 may be disposed to close the opened front of the housing 1110 .
- the plate 1160 may be formed of a metal plate.
- the housing 1110 may include a groove in which an adhesive for fixing the plate 1160 to the housing 1110 is disposed.
- the reflective member driving apparatus 1000 may include a driver IC 1170 .
- the fixing unit 1100 may include a driver IC 1170 .
- the driver IC 1170 may be disposed on the substrate 1130 .
- the driver IC 1170 may be electrically connected to the first coil 1412 and the second coil 1422 .
- the driver IC 1170 may supply current to the first coil 1412 and the second coil 1422 .
- the driver IC 1170 may control one or more of a voltage and a current applied to each of the first coil 1412 and the second coil 1422 .
- the driver IC 1170 may be electrically connected to the Hall sensors 1413 and 1423 .
- the driver IC 1170 may feedback-control the voltage and current applied to the first coil 1412 and the second coil 1422 through the position of the reflective member 1220 sensed by the Hall sensors 1413 and 1423 . .
- the reflective member driving apparatus 1000 may include a moving unit 1200 .
- the moving unit 1200 may be a moving unit.
- the moving part 1200 may be a movable part.
- the moving unit 1200 may be a mover.
- the moving unit 1200 may move with respect to the fixed unit 1100 .
- the moving unit 1200 may be tilted with respect to the fixed unit 1100 .
- the moving unit 1200 may be disposed in the fixed unit 1100 . At least a portion of the moving unit 1200 may be spaced apart from the fixed unit 1100 .
- the moving unit 1200 in an initial state in which no current is applied to the driving unit 1400 , the moving unit 1200 may be in contact with the fixed unit 1100 .
- the reflective member driving apparatus 1000 may include a holder 1210 .
- the moving unit 1200 may include a holder 1210 .
- the holder 1210 may be disposed in the housing 1110 .
- the holder 1210 is movable with respect to the housing 1110 .
- the holder 1210 may be tilted with respect to the housing 1110 . At least a portion of the holder 1210 may be spaced apart from the housing 1110 .
- the holder 1210 may be in contact with the housing 1110 .
- the holder 1210 may move between the second part 1112 and the third part 1113 of the housing 1110 by the first driving part 1410 .
- the holder 1210 In an initial state in which no current is applied to the first driving unit 1410 , the holder 1210 may be in contact with the housing 1110 . In the initial state, the holder 1210 may be in contact with the inner surface of the housing 1110 adjacent to the incident surface of the reflective member 1220 .
- the holder 1210 may be spaced apart from the inner surface of the housing 1110 and may be tilted based on the first axis of the moving plate 1300 .
- the holder 1210 may include a groove 1211 .
- the groove 1211 may be a moving plate second protrusion receiving groove.
- the second protrusion 1320 of the moving plate 1300 may be disposed in the groove 1211 .
- the groove 1211 may accommodate at least a portion of the moving plate 1300 .
- the groove 1211 may restrict movement except for rotation of the second protrusion 1320 of the moving plate 1300 .
- the groove 1211 may include an inclined surface in contact with the second protrusion 1320 of the moving plate 1300 .
- the inclined surface may include a plurality of inclined surfaces.
- the holder 1210 may include a plurality of grooves 1211 in which the plurality of second protrusions 1320 are disposed.
- the plurality of grooves 1211 of the holder 1210 includes a first groove 1211-1 in four-point contact with one of the second projections 1320 among the plurality of second projections 1320, and a plurality of second projections ( A second groove 1211 - 2 in contact with the second protrusion 1320 of the other one of the 1320 , 1211 - 2 may be included.
- the groove 1211 may include a first groove 1211-1.
- the first groove 1211-1 may be a four-point contact groove.
- the first groove 1211-1 may contact one of the two second protrusions 1320 of the moving plate 1300 at four points.
- the first groove 1211-1 of the holder 1210 may constrain movement in four directions, up, down, left, and right except for rotation of one of the second protrusions 1320 of the moving plate 1300 .
- the groove 1211 may include a second groove 1211 - 2 .
- the second groove 1211 - 2 may be a two-point contact groove.
- the second groove 1211 - 2 may be a two-point contact groove.
- the second groove 1211 - 2 may contact the other one of the two second protrusions 1320 of the moving plate 1300 at two points.
- the second groove 1211 - 2 of the holder 1210 may constrain the movement of the other one of the second protrusions 1320 of the moving plate 1300 in two directions.
- the second groove 1211 - 2 of the holder 1210 may constrain the movement in the left and right directions of the second protrusion 1320 of the moving plate 1300 and may not restrict the movement in the vertical direction.
- the holder 1210 may include a first protrusion 1212 .
- the first protrusion 1212 may be an upper stopper.
- the first protrusion 1212 may be formed on the upper surface of the holder 1210 .
- the first protrusion 1212 may protrude from the upper surface of the holder 1210 .
- the first protrusion 1212 may contact the housing 1110 when the holder 1210 moves upward.
- the first protrusion 1212 may contact the second portion 1112 of the housing 1110 when the holder 1210 moves upward.
- the holder 1210 may include a second protrusion 1213 .
- the second protrusion 1213 may be a lower stopper.
- the second protrusion 1213 may be formed on the lower surface of the holder 1210 .
- the second protrusion 1213 may protrude from the lower surface of the holder 1210 .
- the second protrusion 1213 may contact the housing 1110 when the holder 1210 moves downward.
- the second protrusion 1213 may contact the third portion 1113 of the housing 1110 when the holder 1210 moves downward.
- the first protrusion 1212 of the holder 1210 in the initial state, may be in contact with the second portion 1112 of the housing 1110 .
- the second protrusion 1213 of the holder 1210 may come into contact with the third portion 1113 of the housing 1110 by applying a current to the first driving unit 1410 or by an impact.
- the holder 1210 may include an adhesive receiving groove 1214 .
- the adhesive receiving groove 1214 may receive an adhesive for fixing the reflective member 1220 to the holder 1210 .
- the adhesive receiving groove 1214 may be formed on a surface in contact with the reflective member 1220 .
- An adhesive may be disposed in the adhesive receiving groove 1214 .
- the holder 1210 may include a groove 1215 .
- the groove 1215 may be a spacing groove providing a separation space between the reflective member 1220 and the reflective member 1220 .
- the groove 1215 may be formed on a surface in contact with the reflective member 1220 . A contact area between the reflective member 1220 and the holder 1210 may be reduced by the groove 1215 .
- the holder 1210 may include a groove 1216 .
- the groove 1216 may be a slimming groove.
- the groove 1216 may be formed in the center of the holder 1210 .
- the weight of the holder 1210 may be reduced by the groove 1216 .
- the holder 1210 may include a magnet receiving groove 1217 .
- Driving magnets 1411 and 1421 may be disposed in the magnet receiving groove 1217 .
- the magnet receiving groove 1217 may be formed in a shape corresponding to the driving magnets 1411 and 1421 .
- the magnet receiving groove 1217 may be concavely formed on the lower surface of the holder 1210 .
- the magnet receiving groove 1217 may be formed on the lower surface and both sides of the holder 1210 .
- the magnet accommodating groove 1217 may include a plurality of magnet accommodating grooves.
- the magnet accommodating groove 1217 may include a first magnet accommodating groove accommodating the first driving magnet 1411 and the yoke 1414 .
- the magnet accommodating groove 1217 may include a second magnet accommodating groove accommodating the second driving magnet 1421 and the yoke 1424 .
- the holder 1210 may include a groove 1218 .
- the groove 1218 may be a mover rigid receiving groove.
- a coupling portion 1232 of the mover rigid 1230 may be disposed in the groove 1218 .
- the groove 1218 may be formed in a shape corresponding to the coupling portion 1232 of the mover rigid 1230 .
- the groove 1218 may include a groove in which an adhesive for fixing the coupling portion 1232 of the mover rigid 1230 to the holder 1210 is accommodated.
- the holder 1210 may include a plurality of protrusions formed in the groove 1218 . At least a portion of the coupling portion 1232 of the mover rigid 1230 may be inserted into the groove 1218 .
- the reflective member driving device 1000 may include an adhesive for fixing the mover rigid 1230 to the holder 1210 . At least a portion of the adhesive may be disposed between the plurality of protrusions formed in the grooves 1218 of the holder 1210 . Through this, the coupling force between the mover rigid 1230 and the holder 1210 may be improved.
- the holder 1210 may include a lateral stopper 1219 .
- the side stoppers 1219 may be formed on both sides of the holder 1210 .
- the side stopper 1219 may protrude from a side surface of the holder 1210 .
- the side stopper 1219 may contact the housing 1110 when the holder 1210 moves laterally.
- the side stopper 1219 may contact the side plate of the housing 1110 when the holder 1210 moves laterally.
- the reflective member driving apparatus 1000 may include a reflective member 1220 .
- the moving unit 1200 may include a reflective member 1220 .
- the reflective member 1220 may be disposed on the holder 1210 .
- the reflective member 1220 may be disposed in the holder 1210 .
- the reflective member 1220 may be coupled to the holder 1210 .
- the reflective member 1220 may be fixed to the holder 1210 .
- the reflective member 1220 may be fixed to the holder 1210 by an adhesive.
- the reflective member 1220 may move integrally with the holder 1210 .
- the reflective member 1220 may change the path of light.
- the reflective member 1220 may reflect light.
- the reflective member 1220 may include a prism.
- the reflective member 1220 may include a mirror.
- the reflective member 1220 may be formed in a triangular prism shape. An angle between the path of the light incident on the reflective member 1220 and the path of the light exiting may be 90 degrees.
- the reflective member driving apparatus 1000 may include a mover rigid 1230 .
- the moving unit 1200 may include a mover rigid 1230 .
- the mover rigid 1230 may be coupled to the holder 1210 .
- the mover rigid 1230 may be formed of a member separate from the holder 1210 .
- the mover rigid 1230 may be coupled to the holder 1210 through the hole 1114 of the housing 1110 .
- the mover rigid 1230 may be formed of a non-magnetic metal.
- a first magnet 1240 and a second magnet 1120 may be disposed between the mover rigid 1230 and the holder 1210 .
- the first magnet 1240 and the second magnet 1120 may be disposed so that the same polarity faces each other and may repel each other.
- the first magnet 1240 fixed to the housing 1110 may push the second magnet 1120 outward.
- the mover rigid 1230 to which the second magnet 1120 is fixed by the repulsive force of the first magnet 1240 may also be pressed to the outside.
- the holder 1210 to which the mover rigid 1230 is fixed may also be pressed to the outside. Through this, the holder 1210 may press the moving plate 1300 against the housing 1110 . Through this, the moving plate 1300 may be disposed between the holder 1210 and the housing 1110 without being removed.
- the mover rigid 1230 may include a protrusion 1231 .
- the protrusion 1231 may extend from the body portion of the mover rigid 1230 .
- the protrusion 1231 may be coupled to the housing 1110 by a damper 1500 .
- the protrusion 1231 may be disposed in the central region of the mover rigid 1230 .
- the protrusion 1231 may be formed in the central region of the mover rigid 1230 .
- the protrusion 1231 may protrude from the upper surface of the body portion of the mover rigid 1230 .
- the protrusion 1231 may contact the housing 1110 when the mover rigid 1230 is moved.
- the protrusion 1231 may include a plurality of protrusions.
- the protrusion 1231 of the mover-rigid 1230 may include a first protrusion formed on the upper surface of the body portion of the mover-rigid 1230 . It may include a second protrusion formed on the lower surface of the body portion of the mover rigid 1230. At least a portion of the first protrusion of the mover rigid 1230 may be disposed in the first groove of the housing 1110 . At least a portion of the second protrusion of the mover rigid 1230 may be disposed in the second groove of the housing 1110 .
- the protrusion 1231 may include a first protruding area protruding to one side and a second protruding area protruding to the other side. Each of the first and second protruding regions may be referred to as a protrusion.
- the mover rigid 1230 may include a body portion.
- the body portion may be disposed on the opposite side of the moving plate 1300 with respect to the first portion 1111 of the housing 1110 .
- the mover rigid 1230 may include two coupling portions 1232 protruding from both sides of the body portion.
- the mover rigid 1230 may include two protrusions 1231 protruding vertically from the body.
- the mover rigid 1230 may include a coupling portion 1232 .
- the coupling part 1232 may be a leg part.
- the coupling portion 1232 may extend from the body portion of the mover rigid 1230 .
- the coupling part 1232 may pass through the hole 1114 of the housing 1110 .
- the coupling part 1232 may be coupled to the holder 1210 .
- the coupling part 1232 may be fixed to the holder 1210 by an adhesive. At least a portion of the coupling portion 1232 may be inserted into the groove 1218 of the holder 1210 .
- the reflective member driving apparatus 1000 may include a first magnet 1240 .
- the moving unit 1200 may include a first magnet 1240 .
- the first magnet 1240 may be disposed on the moving unit 1200 .
- the first magnet 1240 may be a first repulsive force magnet.
- the first magnet 1240 may be disposed on the mover rigid 1230 .
- the first magnet 1240 may be disposed on the body of the mover rigid 1230 .
- the first magnet 1240 may be disposed to face the second magnet 1120 .
- the first magnet 1240 may be disposed to generate a repulsive force with the second magnet 1120 .
- the first magnet 1240 may be disposed to face the same polarity as the second magnet 1120 .
- the first magnet 1240 may push the second magnet 1120 .
- the central axis of the first magnet 1240 may be arranged to be eccentric with the central axis of the moving plate 1300 .
- the first optical axis may be the z-axis.
- the first optical axis may be an axis perpendicular to the sensor surface of the image sensor 3400 .
- the first optical axis may be an optical axis of lens groups disposed adjacent to the image sensor 3400 .
- the horizontal central axis (A) of the first magnet 1240 and the second magnet 1120 is a horizontal central axis (B) of the moving plate 1300 and a longitudinal gap (G) It may be eccentrically arranged to have
- the center of the first magnet 1240 may be arranged to be eccentric with the center of the moving plate 1300 .
- the horizontal axis passing through the central axis of the first magnet 1240 may be eccentric in the direction of the horizontal axis passing through the central axis of the moving plate 1300 and the second optical axis perpendicular to the first optical axis.
- the horizontal axis may be the x-axis.
- the horizontal axis may be disposed in a horizontal direction.
- the second optical axis may be a y-axis.
- the second optical axis may be an axis parallel to the sensor surface of the image sensor 3400 .
- the second optical axis may be disposed in a vertical direction.
- the horizontal axis that meets or comes into contact with the central axis of the first magnet 1240 may be eccentric in the direction of the horizontal axis passing through the central axis of the moving plate 1300 and the second optical axis perpendicular to the first optical axis.
- the center of the first magnet 1240 may be arranged to be eccentric in the longitudinal direction with respect to the center of the moving plate 1300 .
- the vertical axis passing through the central axis of the first magnet 1240 may not be eccentric in the direction of the vertical axis and the horizontal axis passing through the central axis of the moving plate 1300 .
- the horizontal axis may be the x-axis.
- the horizontal axis may be disposed in a horizontal direction.
- the second optical axis may be a y-axis.
- the second optical axis may be an axis parallel to the sensor surface of the image sensor 3400 .
- the second optical axis may be disposed in a vertical direction.
- the center of the first magnet 1240 may be disposed so as not to be eccentric in the horizontal direction with respect to the center of the moving plate 1300 .
- a horizontal line passing through the center of the first magnet 1240 may be vertically eccentric with a horizontal line passing through the center of the moving plate 1300 . Based on the facing surface, the vertical line passing through the center of the first magnet 1240 may not be eccentric in the horizontal direction from the vertical line passing through the center of the moving plate 1300 .
- the horizontal axis of the first magnet 1240 may be disposed higher than the horizontal axis of the moving plate 1300 .
- the horizontal axis of the first magnet 1240 may be disposed lower than the horizontal axis of the moving plate 1300 .
- the first magnet 1240 and the second magnet 1120 may be disposed between the mover rigid 1230 and the moving plate 1300 .
- the size of the first magnet 1240 may be different from the size of the second magnet 1120 .
- the first magnet 1240 may be formed in a size different from that of the second magnet 1120 .
- the size of the first magnet 1240 may be larger than the size of the second magnet 1120 .
- the first magnet 1240 may be formed to be larger than the second magnet 1120 .
- the area of the first surface of the first magnet 1240 may be greater than the area of the second surface of the second magnet 1120 facing the first surface.
- the first surface and the second surface are arbitrarily referred to as one of the two surfaces, and the other may be referred to as the second surface, and both may be referred to as the first surface.
- the first magnet 1240 may include a first surface.
- the second magnet 1120 may include a first surface facing the first surface of the first magnet 1240 .
- the area of the first surface of the first magnet 1240 may be larger than the area of the first surface of the second magnet 1120 .
- the first surface of the first magnet 1240 may include a first side.
- the first surface of the second magnet 1120 may include a first side disposed in a direction corresponding to the first side of the first magnet 1240 .
- the first side of the second magnet 1120 may be 55% to 75% of the first side of the first magnet 1240 .
- the first side of the second magnet 1120 may be 60% to 66% of the first side of the first magnet 1240 .
- the first side of the second magnet 1120 may be 62% to 64% of the first side of the first magnet 1240 .
- the height H1 of the first magnet 1240 may be greater than the height H2 of the second magnet 1120 .
- the width W1 of the first magnet 1240 may be greater than the width W2 of the second magnet 1120 .
- the area of the first surface of the second magnet 1120 may be 30% to 50% of the area of the first surface of the first magnet 1240 .
- the area of the first surface of the second magnet 1120 may be 35% to 45% of the area of the first surface of the first magnet 1240 .
- the area of the first surface of the second magnet 1120 may be 38% to 42% of the area of the first surface of the first magnet 1240 .
- the first magnet 1240 and the second magnet 1120 may be formed to have the same thickness.
- the volume of the second magnet 1120 may be 30% to 50% of the volume of the first magnet 1240 .
- an edge region of the second magnet 1120 may be disposed within the first surface of the first magnet 1240 .
- the edge region may be an edge region.
- the edge region may be a corner.
- the first magnet 1240 may be disposed such that all regions of the second magnet 1120 overlap the first magnet 1240 in a first direction in which the first magnet 1240 faces the second magnet 1120 .
- the first magnet 1240 may be disposed such that all regions of the second magnet 1120 overlap the first magnet 1240 in the first direction in which the first magnet 1240 faces the second magnet 1120 .
- the size of the first magnet 1240 may be smaller than the size of the second magnet 1120 .
- the second magnet 1120 may be formed to be larger than the first magnet 1240 .
- the central axes of the first magnet 1240 and the second magnet 1120 may coincide with each other. However, a tolerance of +-1% to +-2% may occur in the actual product.
- the second magnet 1120 may include a second surface facing the first surface of the first magnet 1240 .
- the central axis of the first magnet 1240 may be arranged to be eccentric with the central axis of the moving plate 1300 .
- the area of the first surface of the first magnet 1240 may be larger than the area of the second surface of the second magnet 1120 .
- the moving unit 1200 in an initial state in which no current is applied to the driving unit 1400 , the moving unit 1200 may be in contact with the fixed unit 1100 .
- an edge of the first magnet 1240 may surround the second magnet 1120 .
- the second magnet 1120 When viewed from the second magnet 1120 toward the first magnet 1240 , the second magnet 1120 may be disposed inside the corner of the first magnet 1240 .
- the first magnet 1240 may include a first surface facing the second magnet 1120 and a second surface opposite to the first surface.
- the first surface of the first magnet 1240 may include a first side and a second side shorter than the first side.
- a first side of the first magnet 1240 may be formed to be 1 mm to 5 mm.
- the second side of the first magnet 1240 may be formed to be 0.8 mm to 4 mm.
- a thickness between the first and second surfaces of the first magnet 1240 may be 0.1 mm to 0.5 mm.
- the force Fx formed by the first driving unit 1410 may be within 7 mN.
- the force Fy formed by the second driver 1420 may be within 7 mN.
- the force Fx formed by the first driver 1410 may be within 3 mN.
- the force Fy formed by the second driver 1420 may be within 3 mN.
- a first surface of the first magnet 1240 may be formed in a square shape.
- the first surface of the second magnet 1120 may be formed in a square shape.
- each of the first surface of the first magnet 1240 and the first surface of the second magnet 1120 may be formed in a rectangular shape.
- the first magnet 1240 may have a square cross-section at least in part.
- the second magnet 1120 may have a square cross-section at least in part.
- the first magnet 1240 may have a rounded edge.
- the second magnet 1120 may have a rounded edge.
- the first magnet 1240 may have a circular cross-section.
- the first magnet 1240 may be formed in a cylindrical shape.
- the second magnet 1120 may have a circular cross-section.
- the second magnet 1120 may be formed in a cylindrical shape.
- the first magnet 1240 may have a rounded edge.
- the first magnet 1240 may have a curved edge.
- the first magnet 1240 may be formed so that an edge has a curvature.
- the first magnet 1240 may have a C-cut or an R-cut edge.
- the second magnet 1120 may have a rounded edge.
- the second magnet 1120 may have a curved edge.
- the second magnet 1120 may be formed so that an edge has a curvature.
- the second magnet 1120 may have a C-cut or R-cut edge.
- the reflective member driving apparatus 1000 may include a moving plate 1300 .
- the moving plate 1300 may be an inter-plate.
- the moving plate 1300 may be disposed between the housing 1110 and the holder 1210 .
- the moving plate 1300 may be disposed between the mover rigid 1230 and the holder 1210 .
- the moving plate 1300 may be disposed between the first magnet 1240 and the holder 1210 .
- the moving plate 1300 may be disposed between the fixed unit 1100 and the moving unit 1200 .
- the moving plate 1300 may be disposed between the first surface of the second magnet 1120 and the holder 1210 .
- the moving plate 1300 may guide the movement of the holder 1210 with respect to the housing 1110 .
- the moving plate 1300 may provide a tilt center of the holder 1210 .
- the holder 1210 may be tilted around the moving plate 1300 .
- the moving plate 1300 may have one side disposed on the holder 1210 and the other side disposed on the housing 1110 .
- the moving plate 1300 may contact the holder 1210 and the housing 1110 .
- the moving plate 1300 may include a first surface facing the housing 1110 and a second surface facing the holder 1210 .
- the first surface of the moving plate 1300 may include a plurality of first protrusions 1310 spaced apart from each other in the direction of the first axis.
- the second surface of the moving plate 1300 may include a plurality of second protrusions 1320 spaced apart from each other in the direction of the second axis.
- the moving plate 1300 may include a plurality of first convex portions formed on one surface and a plurality of second convex portions formed on the other surface.
- the first convex portion may be a first protrusion 1310 .
- the second convex portion may be a second protrusion 1320 .
- the x-axis may correspond to a straight line connecting two convex parts among the plurality of first convex parts.
- the x-axis may coincide with or parallel to a straight line connecting two convex parts among the plurality of first convex parts.
- the y-axis may correspond to a straight line connecting two convex parts among the plurality of second convex parts.
- the y-axis may coincide with or parallel to a straight line connecting the two convex parts among the plurality of second convex parts.
- the first protrusion may be the second protrusion 1320 and the second protrusion may be the first protrusion 1310 .
- the moving plate 1300 may include a first protrusion 1310 .
- the first protrusion 1310 may be disposed on the housing 1110 .
- the first protrusion 1310 may be in contact with the housing 1110 .
- the first protrusion 1310 may be disposed in the groove 1115 of the housing 1110 .
- the first protrusion 1310 may provide a first axis tilt center with respect to the holder 1210 .
- the first protrusion 1310 may provide an x-axis tilt center with respect to the holder 1210 .
- the first protrusion 1310 may include two first protrusions.
- the two first protrusions may be spaced apart from each other in the x-axis direction.
- the two first protrusions may be disposed on the x-axis.
- the holder 1210 may be tilted around the first protrusion 1310 of the moving plate 1300 by the first driving unit 1410 .
- the holder 1210 may be tilted in the vertical direction based on the first protrusion 1310 of the moving plate 1300 by the first driving unit 1410 .
- the first axis of the moving plate 1300 may be defined by the first protrusion 1310 of the moving plate 1300 and the groove 1115 of the housing 1110 .
- the center of rotation of the tilt about the first axis may be further away. Through this, the accuracy of the hall value for detecting the first axis tilt movement amount may be increased.
- a mechanical stroke for the x-axis tilt drive can be secured.
- the moving plate 1300 may include a second protrusion 1320 .
- the second protrusion 1320 may be disposed on the holder 1210 .
- the second protrusion 1320 may be in contact with the holder 1210 .
- the second protrusion 1320 may be disposed in the groove 1211 of the holder 1210 .
- the second protrusion 1320 may provide a second axis tilt center perpendicular to the first axis with respect to the holder 1210 .
- the second protrusion 1320 may provide a y-axis tilt center with respect to the holder 1210 .
- the second protrusion 1320 may include two second protrusions. The two second protrusions may be spaced apart from each other in the y-axis direction.
- the two second protrusions may be disposed on the y-axis.
- the holder 1210 may be tilted around the second protrusion 1320 of the moving plate 1300 by the second driving unit 1420 .
- the holder 1210 may be tilted in the left and right directions based on the second protrusion 1320 of the moving plate 1300 by the second driving unit 1420 .
- the first protrusion 1310 of the moving plate 1300 may provide the y-axis tilt center to the holder 1210 and the second protrusion 1320 of the moving plate 1300 may provide the x-axis tilt center. have.
- the reflective member driving apparatus 1000 may include grease.
- Grease may be disposed between the moving plate 1300 and the housing 1110 .
- the grease may be formed of a material different from that of the damper 1500 .
- the grease may be spaced apart from the damper 1500 .
- Grease may be distinguished from the damper 1500 .
- Grease may be applied in a shape different from that of the damper 1500 .
- Grease may be applied at a different location than the damper 1500 .
- the reflective member driving apparatus 1000 may include a driving unit 1400 .
- the driving unit 1400 may move the moving unit 1200 with respect to the fixed unit 1100 .
- the driving unit 1400 may tilt the moving unit 1200 with respect to the fixed unit 1100 .
- the driving unit 1400 may tilt the holder 1210 .
- the driving unit 1400 may tilt the moving unit 1200 based on the x-axis and the y-axis perpendicular to each other of the moving plate 1300 .
- the driving unit 1400 may include a coil and a magnet.
- the driving unit 1400 may move the moving unit 1200 through electromagnetic interaction.
- the driving unit 1400 may include a shape memory alloy (SMA).
- SMA shape memory alloy
- the driving unit 1400 may include a first driving unit 1410 and a second driving unit 1420 .
- the first driving unit 1410 may include a first driving magnet 1411 and a first coil 1412 . It may include a second driving unit 1420 , a second driving magnet 1421 , and a second coil 1422 .
- the first driving magnet 1411 and the first coil 1412 may tilt the holder 1210 about the first axis.
- the second driving magnet 1421 and the second coil 1422 may tilt the holder 1210 about a second axis perpendicular to the first axis. Either one of the first driving magnet 1411 and the second driving magnet 1421 may be referred to as a third magnet, and the other may be referred to as a fourth magnet.
- the driving unit 1400 may include a first driving unit 1410 .
- the first driving unit 1410 may tilt the moving unit 1200 about the first axis with respect to the fixed unit 1100 .
- the first driving unit 1410 may tilt the holder 1210 based on a first axis of the moving plate 1300 .
- the first driving unit 1410 may tilt the moving unit 1200 about the x-axis with respect to the fixed unit 1100 .
- the first driving unit 1410 may include a coil and a magnet.
- the first driving unit 1410 may move the moving unit 1200 through electromagnetic interaction.
- the first driving unit 1410 may include a shape memory alloy (SMA).
- SMA shape memory alloy
- the first driving unit 1410 may include a first driving magnet 1411 .
- the first driving magnet 1411 may be disposed on the holder 1210 .
- the first driving magnet 1411 may be disposed on the lower surface of the holder 1210 .
- the first driving magnet 1411 may be fixed to the holder 1210 .
- the first driving magnet 1411 may be fixed to the holder 1210 by an adhesive.
- the first driving magnet 1411 may be disposed between the holder 1210 and the lower surface of the housing 1110 .
- the first driving magnet 1411 may be disposed between the holder 1210 and the lower plate of the housing 1110 .
- the first driving magnet 1411 may move integrally with the holder 1210 .
- the first driving magnet 1411 may tilt the holder 1210 .
- the first driving magnet 1411 may tilt the holder 1210 with respect to the first axis.
- the first driving magnet 1411 may be disposed to face the first coil 1412 .
- the first driving magnet 1411 may face the first coil 1412 .
- the first driving magnet 1411 may be disposed at a position corresponding to the first coil 1412 .
- the first driving magnet 1411 may interact with the first coil 1412 .
- the first driving magnet 1411 may electromagnetically interact with the first coil 1412 . At least a portion of the first driving magnet 1411 may be disposed in the groove 1217 of the holder 1210 .
- the first driving magnet 1411 may include a first surface in a direction toward the reflective member 1220 .
- the second magnet 1120 may include a first surface in a direction toward the reflective member 1220 .
- the first surface of the first driving magnet 1411 may include a first area closest to the second magnet 1120 .
- the first region of the first driving magnet 1411 may have a polarity different from that of the first surface of the second magnet 1120 .
- the first surface of the first driving magnet 1411 may include a second region having a polarity different from that of the first region.
- the first region of the first driving magnet 1411 may have an S pole and the second region may have an N pole. In this case, the first surface of the second magnet 1120 may have an N pole.
- the first region of the first driving magnet 1411 may have an N pole and the second region may have an S pole.
- magnetic field interference may be minimized through the arrangement of the magnet polarities of the first driving magnet 1411 and the second magnet 1120 .
- the first driving magnet 1411 may include a second surface opposite to the first surface of the first driving magnet 1411 .
- the second surface of the first driving magnet 1411 may include a third region having a polarity different from that of the first region.
- the second surface of the first driving magnet 1411 may include a fourth region having a polarity different from that of the second region.
- the second surface of the first driving magnet 1411 may face the first coil 1412 .
- the third region may have an N pole and the fourth region may have an S pole. Alternatively, the third region may have an S pole and the fourth region may have an N pole.
- the first driving magnet 1411 may include a neutral portion disposed between the first region and the second region.
- the first driving magnet 1411 may include a neutral portion disposed between the third region and the fourth region.
- the neutral portion may be a portion having a polarity close to neutral.
- the region of the first driving magnet 1411 closest to the first surface of the second magnet 1120 may have a polarity for generating attractive force with the first surface of the second magnet 1120 .
- the first surface of the second magnet 1120 and the first area of the first driving magnet 1411 closest to the first surface of the second magnet 1120 may generate attractive forces to each other.
- Each of the second magnet 1120 and the first driving magnet 1411 may include a first surface facing the center of the moving unit 1200 .
- the first surface of the first driving magnet 1411 may include a first region and a second region having different polarities.
- the first surface of the second magnet 1120 may be disposed closer to the first driving magnet 1411 than the second driving magnet 1421 .
- the first area of the first driving magnet 1411 may be disposed closer to the second magnet 1120 than the second area.
- the first region of the first driving magnet 1411 may have a polarity different from that of the first surface of the second magnet 1120 .
- Each of the second magnet 1120 and the first driving magnet 1411 may include a first surface facing the center of the holder 1210 .
- the first surface of the first driving magnet 1411 and the first surface of the second magnet 1120 may include regions having different polarities.
- the first driving unit 1410 may include a first coil 1412 .
- the first coil 1412 may be disposed on the substrate 1130 .
- the first coil 1412 may be disposed in the housing 1110 .
- the first coil 1412 may be disposed on the substrate 1130 at a position corresponding to the first driving magnet 1411 .
- the first coil 1412 may be disposed under the holder 1210 .
- the first coil 1412 may interact with the first driving magnet 1411 .
- When a current is applied to the first coil 1412 an electromagnetic field is formed around the first coil 1412 to interact with the first driving magnet 1411 .
- the first driving magnet 1411 and the first coil 1412 may tilt the holder 1210 with respect to the first axis.
- the first axis may be the x-axis.
- a first direction driving current may be applied to the first coil 1412 to drive the first coil 1412 .
- the second direction driving current opposite to the first direction driving current may not be used to drive the first coil 1412 . That is, only a current in one of a reverse direction or a forward direction may be supplied to the first coil 1412 .
- the reflective member driving apparatus 1000 may include a Hall sensor 1413 .
- the Hall sensor 1413 may detect the first driving magnet 1411 .
- the Hall sensor 1413 may detect a magnetic force of the first driving magnet 1411 .
- the Hall sensor 1413 may detect the position of the holder 1210 .
- the Hall sensor 1413 may detect the position of the reflective member 1220 .
- the Hall sensor 1413 may detect a tilt amount with respect to the x-axis of the holder 1210 .
- the reflective member driving device 1000 may include a yoke 1414 .
- the yoke 1414 may be disposed between the first driving magnet 1411 and the holder 1210 .
- the yoke 1414 may be formed in a shape corresponding to the first driving magnet 1411 .
- the yoke 1414 may increase the interaction force between the first driving magnet 1411 and the first coil 1412 .
- the driving unit 1400 may include a second driving unit 1420 .
- the second driving unit 1420 may tilt the moving unit 1200 about the second axis with respect to the fixed unit 1100 .
- the second driving unit 1420 may tilt the holder 1210 based on a second axis perpendicular to the first axis of the moving plate 1300 .
- the second driving unit 1420 may tilt the moving unit 1200 about the y-axis with respect to the fixed unit 1100 .
- the second driving unit 1420 may include a coil and a magnet.
- the second driving unit 1420 may move the moving unit 1200 through electromagnetic interaction.
- the second driving unit 1420 may include a shape memory alloy (SMA).
- SMA shape memory alloy
- the second driving unit 1420 may include a second driving magnet 1421 .
- the second driving magnet 1421 may be disposed on the holder 1210 .
- the second driving magnet 1421 may be disposed on both sides of the holder 1210 .
- the second driving magnet 1421 may be fixed to the holder 1210 .
- the second driving magnet 1421 may be fixed to the holder 1210 by an adhesive.
- the second driving magnet 1421 may be disposed between the holder 1210 and a side surface of the housing 1110 .
- the second driving magnet 1421 may be disposed between the holder 1210 and the side plate of the housing 1110 .
- the second driving magnet 1421 may move integrally with the holder 1210 .
- the second driving magnet 1421 may tilt the holder 1210 .
- the second driving magnet 1421 may tilt the holder 1210 with respect to a second axis perpendicular to the first axis.
- the second driving magnet 1421 may be disposed to face the second coil 1422 .
- the second driving magnet 1421 may face the second coil 1422 .
- the second driving magnet 1421 may be disposed at a position corresponding to the second coil 1422 .
- the second driving magnet 1421 may interact with the second coil 1422 .
- the second driving magnet 1421 may electromagnetically interact with the second coil 1422 .
- the second driving magnet 1421 may include a first sub-magnet 1421-1.
- the first sub-magnet 1421-1 may be disposed on one side of the holder 1210 .
- the first sub-magnet 1421-1 may be disposed to face the first sub-coil 1422-1.
- the first sub-magnet 1421-1 may face the first sub-coil 1422-1.
- the first sub-magnet 1421-1 may be disposed at a position corresponding to the first sub-coil 1422-1.
- the first sub-magnet 1421-1 may interact with the first sub-coil 1422-1.
- the first sub-magnet 1421-1 may electromagnetically interact with the first sub-coil 1422-1.
- the second driving magnet 1421 may include a second sub-magnet 1421 - 2 .
- the second sub magnet 1421 - 2 may be disposed on the other side of the holder 1210 .
- the second sub-magnet 1421 - 2 may be disposed opposite to the first sub-magnet 1421-1 .
- the second sub-magnet 1421-2 may have the same size and shape as the first sub-magnet 1421-1.
- the second sub magnet 1421 - 2 may be disposed to face the second sub coil 1422 - 2 .
- the second sub magnet 1421 - 2 may face the second sub coil 1422 - 2 .
- the second sub magnet 1421 - 2 may be disposed at a position corresponding to the second sub coil 1422 - 2 .
- the second sub magnet 1421 - 2 may interact with the second sub coil 1422 - 2 .
- the second sub magnet 1421 - 2 may electromagnetically interact with the second sub coil 1422 - 2 .
- the second driving unit 1420 may include a second coil 1422 .
- the second coil 1422 may be disposed on the substrate 1130 .
- the second coil 1422 may be disposed in the housing 1110 .
- the second coil 1422 may be disposed on the second portion of the substrate 1130 .
- the second coil 1422 may be disposed on both sides of the holder 1210 .
- When a current is applied to the second coil 1422 an electromagnetic field is formed around the second coil 1422 to interact with the second driving magnet 1421 .
- the second coil 1422 may include two sub-coils 1421-1 and 1421-2 disposed opposite to each other with respect to the holder 1210 .
- the two sub-coils 1421-1 and 1421-2 may be electrically connected to each other.
- the second driving magnet 1421 and the second coil 1422 may tilt the holder 1210 with respect to a second axis perpendicular to the first axis.
- the second axis may be a y-axis.
- the first axis may be an x-axis, and the z-axis may be an optical axis of the image sensor 3400 .
- the second coil 1422 may include a first sub-coil 1422-1.
- the first sub coil 1422-1 may be disposed on the substrate 1130 .
- the first sub coil 1422-1 may be disposed in the housing 1110 .
- the first sub coil 1422-1 may be disposed on the second portion of the substrate 1130 .
- the first sub coil 1422-1 may be disposed on the side of the holder 1210 .
- the second coil 1422 may include a second sub-coil 1422 - 2 .
- the second sub coil 1422 - 2 may be disposed on the substrate 1130 .
- the second sub coil 1422 - 2 may be disposed in the housing 1110 .
- the second sub coil 1422 - 2 may be disposed on the second portion of the substrate 1130 .
- the second sub coil 1422 - 2 may be disposed on the side of the holder 1210 .
- the second driving magnet 1421 includes a first sub-magnet 1421-1 disposed on a first side of the holder 1210 and a second sub-magnet 1421-2 disposed on a second side of the holder 1210. may include.
- the second coil 1422 includes a first sub-coil 1422-1 disposed on the substrate and disposed at a position corresponding to the first sub-magnet 1421-1, and a second sub-magnet 1421-2 disposed on the substrate. ) and a second sub-coil 1422 - 2 disposed at a position corresponding to it may be included.
- the reflective member driving apparatus 1000 may include a Hall sensor 1423 .
- the hall sensor 1423 may detect the second driving magnet 1421 .
- the Hall sensor 1423 may detect a magnetic force of the second driving magnet 1421 .
- the Hall sensor 1423 may detect the position of the holder 1210 .
- the Hall sensor 1423 may detect the position of the reflective member 1220 .
- the Hall sensor 1423 may detect a tilt amount with respect to the y-axis of the holder 1210 .
- the reflective member driving device 1000 may include a yoke 1424 .
- the yoke 1424 may be disposed between the second driving magnet 1421 and the holder 1210 .
- the yoke 1424 may be formed in a shape corresponding to the second driving magnet 1421 .
- the yoke 1424 may increase the interaction force between the second driving magnet 1421 and the second coil 1422 .
- the reflective member driving apparatus 1000 may include a damper 1500 .
- the damper 1500 may include an adhesive material.
- the damper 1500 may have viscosity.
- the damper 1500 may be disposed between the fixed part 1100 and the moving part 1200 .
- the damper 1500 may be disposed between the mover rigid 1230 and the housing 1110 .
- the damper 1500 may connect the mover rigid 1230 and the housing 1110 .
- the damper 1500 may be coupled to the mover rigid 1230 and the housing 1110 .
- the damper 1500 may be disposed on the mover rigid 1230 .
- the damper 1500 may be combined with the mover rigid 1230 .
- the damper 1500 may be coupled to the mover rigid 1230 .
- the mover rigid 1230 may be coupled to the housing 1110 .
- the housing 1110 and the mover rigid 1230 may be adhered to each other by the damper 1500 .
- the damper 1500 may be disposed on at least one of an upper portion and a lower portion of the first portion 1111 of the housing 1110 .
- the damper 1500 may connect the protrusion 1231 of the mover rigid 1230 and the housing 1110 .
- At least a portion of the damper 1500 may be disposed between the protrusion 1231 of the mover rigid 1230 and the housing 1110 in the groove 1119 of the housing 1110 .
- At least a portion of the damper 1500 may be disposed in a second groove recessed from the first groove portion of the housing 1110 .
- a gel component bond serving as a damper may be applied between the housing 1110 and the mover rigid 1230 .
- the FRA characteristics may be improved.
- a response characteristic of a tilt with respect to the x-axis may be improved.
- Tilt about the y-axis (yaw) can also be improved.
- FIGS. 30 and 31 are views for explaining a tilt with respect to the x-axis of the reflective member driving apparatus according to the present embodiment.
- the holder 1210 may be disposed between the upper plate and the lower plate of the housing 1110 in an initial state in which current is not supplied to the first driving unit 1410 . In this case, the holder 1210 may be in contact with the upper plate of the housing 1110 (see FIG. 30 ).
- the holder 1210 is moved by the electromagnetic interaction between the first coil 1412 and the first driving magnet 1411 of the moving plate 1300 .
- the first protrusion 1310 may be tilted downward (see ⁇ in FIG. 31 ).
- only the current in the first direction may be used to control the first coil 1412 and the current in the first direction opposite to the first direction may not be used.
- the problem of removing the moving plate 1300 that may occur when the current in the second direction is applied to the first coil 1412 can be fundamentally blocked.
- the first magnet 1240 and the second magnet 1240 when the centers of the first magnet 1240 and the second magnet 1120 are disposed at the same height as the first protrusion 1310 of the moving plate 1300, the first magnet 1240 and the second magnet 1240 If the repulsive force between the two magnets 1120 and the electromagnetic force between the first coil 1412 and the first driving magnet 1411 are non-uniform, the moving part 1200 slides by the electromagnetic force and the moving plate 1300 can be removed. have.
- the mover rigid 1230 is the first magnet 1240 . and the second magnet 1120 may fall out by the gap between the moving plate 1300 and the moving plate 1300 . This may cause poor hall calibration dynamic characteristics.
- the center axis of the repulsive force and the x-axis driving center axis may be shifted by a certain distance.
- the reflective member 1220 may be mechanically shifted upward.
- the upward direction may be a direction opposite to gravity.
- the current control may be controlled by a code (code).
- code code
- it is difficult to know the initial position in the open state due to sagging due to gravity, etc. control method may be required.
- the present embodiment since it is controlled in a closed manner, more precise driving can be performed. Furthermore, in the present embodiment, noise generated by moving the moving unit 1200 back and forth by the closed method can also be minimized.
- 32 to 34 are views for explaining a tilt about the y-axis of the reflective member driving apparatus according to the present embodiment.
- the holder 1210 may be disposed between both sides of the housing 1110 in an initial state in which current is not supplied to the second driving unit 1420 .
- the holder 1210 may be spaced apart from both sides of the housing 1110 (see FIG. 32 ).
- the holder 1210 is moved by the electromagnetic interaction between the second coil 1422 and the second driving magnet 1421 of the moving plate 1300 .
- the second protrusion 1320 may be tilted to one side (see FIG. 33 a).
- the holder 1210 is moved by electromagnetic interaction between the second coil 1422 and the second driving magnet 1421 . It may be tilted to the other side with respect to the second protrusion 1320 of the moving plate 1300 (see FIG. 34 b).
- FIG. 35 is a perspective view of the lens driving device according to the present embodiment
- Fig. 36 is a perspective view omitting a part of the lens driving device according to the present embodiment
- Fig. 37 is another view of the lens driving device in the state shown in Fig. 36 It is a perspective view viewed from the direction
- FIG. 38 is a perspective view in which some components of the lens driving device according to the present embodiment are omitted
- FIG. 40 is a perspective view of a state in which the first lens and related components are omitted in the lens driving device of the state shown in FIG. 39
- FIG. 42 is a view for explaining the arrangement structure of a coil and a sensor of the lens driving device according to the present embodiment
- FIG. 43 is a perspective view of the lens driving device of the state shown in FIG. 39 in which the second housing is omitted.
- 44 is a perspective view of a state in which the guide rail is omitted from the lens driving device of the state shown in FIG. 43
- FIG. 45 is an enlarged view of a partial configuration of the lens driving device according to the present embodiment
- FIG. 46 is this embodiment A perspective view of a first moving part and a second moving part and a related configuration of the lens driving device according to an example
- FIG. 47 is a perspective view of the second moving part and related configuration of the lens driving device according to the present embodiment
- FIG. 49 is a perspective view of a second housing of the lens driving device according to the present embodiment
- FIGS. 50 and 51 are exploded views of a part of the lens driving device according to the present embodiment
- Fig. 52 is a cross-sectional view of the lens driving apparatus according to the present embodiment
- Fig. 53 is a cross-sectional view of a part of the lens driving apparatus according to the present embodiment
- Fig. 54 is the arrangement of the EEPROM of the lens driving apparatus according to the present embodiment
- Fig. 55 is a view showing the double protrusion and related coupling structure of the housing of the lens driving device according to the present embodiment
- Fig. 56 is a view showing the cover of the lens driving device according to the present embodiment and FIG.
- Fig. 57 is a lens according to the present embodiment It is a side view of the moving part and the driving magnet of the driving device as viewed from the side
- Fig. 58 is a cross-sectional view showing a cover and related configuration of the lens driving device according to the present embodiment
- Fig. 59 is a first view of the lens driving device according to the present embodiment 1 is a cross-sectional view showing a moving part and a related configuration
- FIG. 60 is a cross-sectional view showing a second moving part and related configuration of the lens driving device according to the present embodiment
- FIG. 61 is an exploded view of the lens driving device according to this embodiment 62 is a cross-sectional view illustrating a height difference between a first coil and a second coil of the lens driving device according to the present embodiment, and FIG. It is a cross-sectional perspective view of the driving part, FIG. 64 is a cross-sectional view of the first moving part and the first driving part of the lens driving device according to the present embodiment, and FIG. 65 is a cross-sectional view of the lens driving device according to the present embodiment.
- the lens driving device 2000 may perform a zoom function.
- the lens driving device 2000 may perform a continuous zoom function.
- the lens driving apparatus 2000 may perform an auto focus (AF) function.
- the lens driving device 2000 may move the lens.
- the lens driving device 2000 may move the lens along an optical axis.
- the lens driving device 2000 may move lenses formed in a plurality of groups for each group.
- the lens driving device 2000 may move the second group lens.
- the lens driving device 2000 may move the third group lens.
- the lens driving device 2000 may be a lens actuator.
- the lens driving device 2000 may be an AF actuator.
- the lens driving device 2000 may be a zoom actuator.
- the lens driving device 2000 may include a voice coil motor (VCM).
- VCM voice coil motor
- the lens driving device 2000 may be an actuator device.
- the lens driving device 2000 may include a lens. Alternatively, the lens may be described as one configuration of the camera device 10 instead of one configuration of the lens driving device 2000 .
- the lens may be disposed in an optical path formed by the reflective member 1220 and the image sensor 3400 of the reflective member driving apparatus 1000 .
- the lens may include a plurality of lenses.
- the plurality of lenses may form a plurality of groups.
- the lenses may form three groups.
- the lens may include first to third group lenses.
- a first group lens, a second group lens, and a third group lens may be sequentially disposed between the reflective member 1220 and the image sensor 3400 .
- the first group of lenses may include a first lens 2120 .
- the second group of lenses may include a second lens 2220 .
- the third group of lenses may include a third lens 2320 .
- the lens driving device 2000 may include a fixing unit 2100 .
- the fixed part 2100 may be a relatively fixed part when the first moving part 2200 and the second moving part 2300 move.
- the lens driving device 2000 may include a housing 2110 .
- the fixing part 2100 may include a housing 2110 .
- the housing 2110 may be disposed outside the first holder 2210 and the second holder 2310 .
- the housing 2110 may accommodate at least a portion of the first holder 2210 and the second holder 2310 .
- the housing 2110 may include a front plate, a rear plate, and a plurality of connection plates.
- the front plate may be called an upper plate
- the rear plate may be called a lower plate
- the connecting plate may be called a side plate.
- the housing 2110 may include a first housing 2110-1.
- the first housing 2110-1 may be a cover.
- the first housing 2110-1 may form a front plate of the housing 2110.
- the first housing 2110-1 may be coupled to the first lens 2120.
- the first housing 2110-1 may be a cover.
- the first housing 2110-1 may be coupled to the reflective member driving device 1000 .
- a first lens 2120 may be fixed to the first housing 2110-1.
- the first housing 2110-1 may be coupled to the protrusion 2115 of the second housing 2110-2.
- the housing 2110 may include a second housing 2110 - 2 .
- the second housing 2110 - 2 may be a housing.
- the second housing 2110 - 2 may form a rear plate and a connection plate of the housing 2110 .
- the second housing 2110 - 2 may be opened forward.
- the first housing 2110-1 may be coupled to the front of the second housing 2110-2.
- a portion of the guide rail 2130 may be disposed between the first housing 2110-1 and the second housing 2110-2.
- the first housing 2110-1 may be referred to as a cover, and the second housing 2110-2 may be referred to as a housing.
- the housing 2110 may include a first groove 2111 .
- the first groove 2111 may be coupled to the protrusion 1116 of the housing 1110 of the reflective member driving apparatus 1000 .
- the first groove 2111 may be formed in a shape corresponding to the protrusion 1116 of the reflective member driving apparatus 1000 .
- An adhesive for coupling the reflective member driving device 1000 to the lens driving device 2000 may be disposed in the first groove 2111 .
- the housing 2110 may include a second groove 2112 .
- the second groove 2112 may be coupled to the protrusion 1117 of the housing 1110 of the reflective member driving device 1000 .
- the protrusion 1117 of the reflective member driving device 1000 may be inserted into the second groove 2112 .
- the second groove 2112 may be formed in a shape corresponding to the protrusion 1117 of the reflective member driving apparatus 1000 .
- An adhesive for coupling the reflective member driving device 1000 to the lens driving device 2000 may be disposed in the second groove 2112 .
- the housing 2110 may include a first hole 2113 .
- the first hole 2113 may expose the protrusion 2211 of the first holder 2210 and the protrusion 2311 of the second holder 2310 .
- the first hole 2113 may be formed in the connection plate of the housing 2110 .
- the protrusion 2211 of the first holder 2210 and the protrusion 2311 of the second holder 2310 exposed through the first hole 2113 are checked to determine the normality of the lens driving device 2000 . You can check if it works.
- the housing 2110 may include a plate 2113 - 1 .
- the plate 2113 - 1 may cover the first hole 2113 .
- the plate 2113 - 1 may be disposed in the first hole 2113 to close the first hole 2113 .
- the housing 2110 may include a second hole 2114 .
- the second hole 2114 may be a coil receiving hole in which the first coil 2412 and the second coil 2422 are disposed.
- a first coil 2412 and a second coil 2422 may be disposed in the second hole 2114 .
- the second hole 2114 may be formed to be larger than the first coil 2412 and the second coil 2422 .
- the housing 2110 may include a protrusion 2115 .
- the protrusion 2115 may be formed on the second housing 2110 - 2 .
- the protrusion 2115 may be formed as a two-stage protrusion.
- the protrusion 2115 may be coupled to the guide rail 2130 .
- the protrusion 2115 may be coupled to the first housing 2110-1.
- the guide rail 2130 may be coupled to a portion of the protrusion 2115 having a large diameter, and the first housing 2110-1 may be coupled to a portion having a small diameter of the protrusion 2115 .
- the protrusion 2115 may pass through the guide rail 2130 and be inserted into the first housing 2110-1.
- the protrusion 2115 may be formed to have two steps.
- the protrusion 2115 may include two regions or portions having different widths or diameters.
- the protrusion 2115 may include a first portion 2115a.
- the first portion 2115a may be disposed on the guide rail 2130 .
- the protrusion 2115 may include a second portion 2115b.
- the second portion 2115b may extend from the first portion 2115a.
- the second portion 2115b may be disposed in the first housing 2110-1.
- the second portion 2115b may have a smaller width than the first portion 2115a.
- the second portion 2115b may have a smaller diameter than the first portion 2115a.
- the first diameter D1 of the first portion 2115a may be larger than the second diameter D2 of the second portion 2115b.
- the protrusion 2115 may include a plurality of protrusions.
- the protrusion 2115 may include four protrusions.
- the protrusion 2115 may include first to fourth protrusions.
- the protrusion 2115 may include a first protrusion 2115-1 and a second protrusion 2115-2.
- the second portion 2115b of the first protrusion 2115-1 may have a greater width than the second portion 2115b of the second protrusion 2115-2.
- the second portion 2115b of the first protrusion 2115-1 may have a smaller width than the second portion 2115b of the second protrusion 2115-2.
- the first portion 2115a of the first protrusion 2115-1 and the first portion 2115a of the second protrusion 2115-2 may have the same width.
- the first portion 2115a of the first protrusion 2115-1 and the first portion 2115a of the second protrusion 2115-2 may have different widths.
- the width of the protrusion 2115 may be a diameter.
- the protrusion 2115 may include a first protrusion 2115 - 1 .
- the first protrusion 2115-1 includes a first portion 2115a having a first diameter D2 and a second portion 2115b protruding from the first portion 2115a and having a second diameter D1. can do.
- the protrusion 2115 may include a second protrusion 2115 - 2 .
- the second protrusion 2115 - 2 may include a third portion having a third diameter D3 and a fourth portion protruding from the third portion and having a fourth diameter D4 .
- a third portion of the second protrusion 2115 - 2 may be referred to as a first portion and a fourth portion of the second protrusion 2115 - 2 may be referred to as a second portion.
- the fourth diameter D4 may be smaller than the second diameter D1.
- the first protrusion 2115-1 may be more tightly coupled to the first housing 2110-1 than the second protrusion 2115-2.
- the housing 2110 may include a guide protrusion 2116 .
- the guide protrusion 2116 may be formed on the inner surface of the housing 2110 .
- the guide protrusion 2116 may be formed in a shape corresponding to the shape of at least a portion of the first holder 2210 and the second holder 2310 . Through this, the guide protrusion 2116 may guide the movement of the first holder 2210 and the second holder 2310 in the optical axis direction.
- the optical axis direction may be a z-axis direction perpendicular to the x-axis and the y-axis.
- the guide protrusion 2116 may be disposed in the optical axis direction.
- the guide protrusion 2116 may extend in the optical axis direction.
- the guide protrusion 2116 may prevent the first holder 2210 and the second holder 2310 from being detached in a direction opposite to the direction in which the ball 2500 is disposed.
- the housing 2110 may include a groove 2117 .
- the groove 2117 may be formed in the first housing 2110-1.
- the groove 2117 of the first housing 2110-1 may be coupled to the protrusion 2115 of the second housing 2110-2.
- the first housing 2110-1 may include a hole 2117a in which the protrusion 2115 of the second housing 2110-2 is disposed.
- the first housing 2110-1 may include a groove 2117 in which the protrusion 2115 of the second housing 2110-2 is disposed.
- the first housing 2110-1 may include a hole 2117a and a groove 2117 in which the protrusion 2115 is disposed.
- the first housing 2110-1 may include a plurality of holes 2117a and grooves 2117 in which the protrusions 2115 are disposed.
- the first housing 2110-1 may include two holes 2117a and two grooves 2117 in which the protrusions 2115 are disposed.
- One of the two holes of the first housing 2110-1 may be formed to have a shape and a diameter corresponding to that of the protrusion 2115 of the second housing 2110-2.
- the other one of the two holes of the first housing 2110-1 has a different shape from the protrusion 2115 of the second housing 2110-2 or a larger diameter than the protrusion 2115 of the second housing 2110-2.
- Each of the two grooves of the first housing 2110-1 may be formed in a shape different from that of the protrusion 2115 of the second housing 2110-2 or with a larger diameter than the protrusion 2115 of the second housing 2110-2.
- Only one of the four holes and grooves of the first housing 2110-1 may be formed in a shape and size corresponding to the protrusion 2115 of the second housing 2110-2.
- two or more of the four holes and grooves of the first housing 2110-1 may be formed in a shape and size corresponding to the protrusion 2115 of the second housing 2110-2.
- the housing 2110 may include a protrusion 2118 .
- the protrusion 2118 may be coupled to the substrate 2140 .
- the protrusion 2118 may be inserted into the groove of the substrate 2140 .
- the protrusion 2118 may be formed to have a corresponding size and shape to fit into the groove of the substrate 2140 .
- the housing 2110 may include a vent hole 2119 .
- the vent hole 2119 may be formed in the rear plate of the housing 2110 .
- the vent hole 2119 may form a gap between the housing 2110 and the dummy glass 2600 . Air may flow into the gap between the housing 2110 and the dummy glass 2600 . A gas generated during the curing process of the adhesive may escape through the vent hole 2119 .
- the lens driving device 2000 may include a first lens 2120 .
- the first lens 2120 may be described as one configuration of the camera device 10 rather than one configuration of the lens driving device 2000 .
- the fixing unit 2100 may include a first lens 2120 .
- the first lens 2120 may be disposed on the optical axis.
- the first lens 2120 may be disposed between the reflective member 1220 and the image sensor 3400 .
- the first lens 2120 may be disposed between the reflective member 1220 and the second lens 2220 .
- the first lens 2120 may be disposed in the first housing 2110-1.
- the first lens 2120 may be fixed to the first housing 2110-1.
- the first lens 2120 may maintain a fixed state even when the second lens 2220 and the third lens 2320 move.
- the first lens 2120 may be a first group lens.
- the first lens 2120 may include a plurality of lenses.
- the first lens 2120 may include three lenses.
- the lens driving device 2000 may include a guide rail 2130 .
- the fixing part 2100 may include a guide rail 2130 .
- the guide rail 2130 may be coupled to the fixing part 2100 .
- the guide rail 2130 may be coupled between the first housing 2110-1 and the second housing 2110-2.
- the guide rail 2130 may be coupled to the protrusion 2115 of the second housing 2110 - 2 .
- the guide rail 2130 may guide the movement of the first holder 2210 and the second holder 2310 .
- the rail 2130 may guide the first holder 2210 and the second holder 2310 to move in the optical axis direction.
- the guide rail 2130 may include a rail disposed in the optical axis direction.
- the guide rail 2130 may include a rail extending in the optical axis direction.
- the guide rail 2130 may include a rail formed so that the ball 2500 rolls.
- the guide rail 2130 may be provided separately from the housing 2110 for flatness management.
- the guide rail 2130 may include a hole 2131 .
- a protrusion 2115 of the second housing 2110 - 2 may be disposed in the hole 2131 .
- a protrusion 2115 of the second housing 2110 - 2 may pass through the hole 2131 .
- the protrusion 2115 of the second housing 2110 - 2 may be inserted into the hole 2131 .
- the hole 2131 may include a plurality of holes.
- the hole 2131 may include first to fourth holes.
- the hole 2131 may include four holes.
- Two of the four holes of the guide rail 2130 may be formed in a shape and diameter corresponding to the protrusion 2115 of the second housing 2110 - 2 .
- the remaining two holes among the four holes of the guide rail 2130 have a different shape from the protrusion 2115 of the second housing 2110-2 or have a larger diameter than the protrusion 2115 of the second housing 2110-2.
- the guide rail 2130 may include one or more holes formed in a shape and diameter corresponding to the protrusion 2115 of the second housing 2110 - 2 .
- the guide rail 2130 may include one or more holes formed in a shape different from that of the protrusion 2115 of the second housing 2110-2 or having a larger diameter than the protrusion 2115 of the second housing 2110-2. .
- the guide rail 2130 may include a plurality of holes in which the protrusions 2115 of the second housing 2110 - 2 are disposed. Some of the plurality of holes of the guide rail 2130 may be formed as positive holes having a shape and diameter corresponding to those of the protrusions 2115 of the second housing 2110 - 2 . However, the positive hole may be formed in a groove shape as a forward groove. The remaining part of the plurality of holes of the guide rail 2130 may be formed as a long hole formed in a shape different from that of the protrusion 2115 of the second housing 2110 - 2 . However, the long hole may be formed in a groove shape as a long groove.
- the protrusion 2115 may be a boss pin.
- the protrusion 2115 is formed in a two-stage structure, so that when the guide rail 2130 is inserted, the distortion of the first housing 2110-1 caused by the breakage of the protrusion 2115 can be alleviated.
- the reference position of the first housing 2110-1 is held by the front hole and the rest is formed as a long hole, assembly property is improved and rotation of the first housing 2110-1 can be prevented.
- the first housing 2110-1 may include a hole 2117a or a groove 2117 in which the protrusion 2115 of the second housing 2110-2 is disposed.
- the diameter of the hole 2131 of the guide rail 2130 may be greater than the diameter of the hole 2117a or the groove 2117 of the first housing 2110-1.
- the guide rail 2130 may include a protrusion 2132 .
- the protrusion 2132 may protrude from the rear surface of the guide rail 2130 .
- the protrusion 2132 may be inserted into the groove of the second housing 2110 - 2 .
- the guide rail 2130 may include a rail groove 2133 .
- the rail grooves 2212 and 2312 of the moving parts 2200 and 2300 are disposed on the other side of the first and second rail grooves disposed on one side of the driving magnets 2411 and 2421 and the driving magnets 2411 and 2421 . It may include a third rail groove and a fourth rail groove.
- the rail groove 2133 may be formed at a position corresponding to the first rail groove and the second rail groove of the moving parts 2200 and 2300 .
- the guide rail 2130 may be formed in a plane at positions corresponding to the third and fourth rail grooves of the moving parts 2200 and 2300 .
- the rail groove 2133 may be a V-shaped groove. Through this, the rail groove 2133 may make two-point contact with the ball 2500 .
- the lens driving device 2000 may include a substrate 2140 .
- the fixing part 2100 may include a substrate 2140 .
- the substrate 2140 may be disposed on the fixing unit 2100 .
- the substrate 2140 may be disposed on both sides of the housing 2110 .
- the substrate 2140 may be an FPCB.
- a first coil 2412 and a second coil 2422 may be disposed on the substrate 2140 .
- the substrate 2140 may be electrically connected to the printed circuit board 3300 through a conductive member.
- the substrate 2140 may electrically connect the printed circuit board 3300 and the reflective member driving device 1000 .
- a substrate separate from the substrate 2140 for electrically connecting the printed circuit board 3300 and the reflective member driving apparatus 1000 may be provided.
- the substrate 2140 may include a printed circuit board (PCB).
- the substrate 2140 may include a rigid PCB (RPCB).
- the substrate 2140 may include a flexible PCB (FPCB).
- the substrate 2140 may include an RFPCB in which an FPCB and an RPCB are combined.
- the substrate 2140 may include a two-layer RPCB and an FPCB disposed between the two-layer RPCB.
- the board 2140 may include a terminal coupled to the printed circuit board 3300 .
- the printed circuit board 3300 may include a terminal coupled to the board 2140 .
- the substrate 2140 may be formed separately from the printed circuit board 3300 .
- the substrate 2140 may be manufactured as a separate member from the printed circuit board 3300 .
- the substrate 2140 may include a first region 2140-1.
- the first region 2140-1 may be formed at an end of the substrate 2140.
- a terminal may be disposed in the first region 2140-1.
- the substrate 2140 may include a second region 2140 - 2 .
- the first region 2140-1 of the substrate 2140 may be bent inward with respect to the second region 2140-2. Through this, the size of the printed circuit board 3300 can be minimized while securing a soldering arrangement area connecting the terminals of the board 2140 and the printed circuit board 3300 .
- the first region 2140-1 may form an obtuse angle with the second region 2140-2.
- the substrate 2140 may include a plurality of terminals coupled to the printed circuit board 3300 through a conductive member.
- the substrate 2140 may include a first region 2140-1 in which a plurality of terminals are disposed.
- the substrate 2140 may include a second region 2140 - 2 in which coils 2412 and 2422 are disposed.
- a plurality of terminals may be coupled to the printed circuit board 3300 in a state in which the first region 2140-1 is bent inward with respect to the second region 2140-2.
- the fixing part 2100 may include a housing 2110 including an inclined surface 2110b.
- the first region 2140-1 may extend along the inclined surface 2110b of the housing 2110 to be inclined with respect to the second region 2140-2.
- the substrate 2140 may include a first region 2140-1 for connecting to the sensor package.
- the first region 2140-1 of the substrate 2140 may be bent to improve solder workability.
- an inclined surface 2110b of the housing 2110 may be provided for bending consistency for each product.
- the substrate 2140 may include a plurality of substrates.
- the substrate 2140 may include two substrates.
- the substrate 2140 may include a first substrate 2141 and a second substrate 2142 .
- the substrate 2140 may include a first substrate 2141 and a second substrate 2142 disposed on opposite sides of the moving parts 2200 and 2300 to be spaced apart from each other.
- the first substrate 2141 and the second substrate 2142 may be disposed in the housing 2110 .
- the first substrate 2141 and the second substrate 2142 may be disposed on opposite sides of the first holder 2210 and the second holder 2310 to be spaced apart from each other.
- the substrate 2140 may include a first substrate 2141 .
- the first substrate 2141 may be disposed on one side of the housing 2110 .
- a first coil 2412 may be disposed on the first substrate 2141 .
- First and second Hall sensors 2413 and 2414 may be disposed on the first substrate 2141 .
- the substrate 2140 may include a second substrate 2142 .
- the second substrate 2142 may be disposed on the other side of the housing 2110 .
- the second substrate 2142 may be disposed opposite to the first substrate 2141 .
- a second coil 2422 may be disposed on the second substrate 2142 .
- Third and fourth Hall sensors 2423 and 2424 may be disposed on the second substrate 2142 .
- the lens driving device 2000 may include a SUS 2145 .
- the suspension 2145 may be disposed on the substrate 2140 .
- the suspension 2145 may reinforce the strength of the substrate 2140 .
- the suspension 2145 may dissipate heat generated by the substrate 2140 .
- the lens driving device 2000 may include an EEPROM 2150 .
- the EEPROM 2150 may be a memory.
- the EEPROM 2150 may be a memory member.
- the EEPROM 2150 may be a data storage member.
- the EEPROM 2150 may be disposed on the substrate 2140 .
- the EEPROM 2150 may be disposed on the inner surface of the substrate 2140 .
- the EEPROM 2150 may be disposed on the inner surface of the second substrate 2142 .
- the second coil 2422 may also be disposed on the inner surface of the second substrate 2142 .
- the EEPROM 2150 may be disposed outside the coils 2412 and 2422 .
- the EEPROM 2150 may be electrically connected to the coils 2412 and 2422 .
- the EEPROM 2150 may be electrically connected to the first coil 2412 and the second coil 2422 .
- the EEPROM 2150 may be disposed on one or more of the first substrate 2141 and the second substrate 2142 .
- the EEPROM 2150 may individually control the first coil 2412 and the second coil 2422 .
- the fixing part 2100 may include a housing 2110 including a groove.
- the EEPROM 2150 may be disposed in the groove of the housing 2110 .
- the EEPROM 2150 may be used to control currents applied to the first coil 2412 and the second coil 2422 before connecting the lens driving device 2000 to the driver IC 3900 in the manufacturing stage. That is, the EEPROM 2150 may be used to test whether the lens driving device 2000 operates normally.
- each of the PCBs for driving is present, and may include an EEPROM 2150 for driving when active alignment is performed.
- the PCB for implementing the zoom and autofocus functions may be separate components.
- each assembly is driven and coupling at an optimal position may be required. Therefore, it may be necessary to control the driver IC 3900 for driving.
- the driver IC 3900 may be disposed in a sensor package.
- An external driver IC can be used to drive without soldering.
- a separate EEPROM 2150 may exist. The information of the EEPROM 2150 is read and the calibration data (Cal. Data) is applied to control it with an external driver IC, and the sensor package and the lens driving device 2000 can be combined.
- the lens driving device 2000 may include moving units 2200 and 2300 .
- the moving parts 2200 and 2300 may be disposed in the fixed part 2100 .
- the moving units 2200 and 2300 may include a plurality of moving units.
- the moving units 2200 and 2300 may include a first moving unit 2200 and a second moving unit 2300 .
- the moving parts 2200 and 2300 may include holders 2210 and 2310 and lenses 2220 and 2320 disposed on the holders 2210 and 2310 .
- the holders 2210 and 2310 may be disposed in the second housing 2110 - 2 .
- the first holder 2210 and the second holder 2310 may be disposed in the housing 2110 .
- the fixing unit 2100 may include a housing 2110 and a first lens 2120 disposed in the housing 2110 .
- the first moving unit 2200 may include a first holder 2210 and a second lens 2220 disposed in the first holder 2210 .
- the second moving unit 2300 may include a second holder 2310 and a third lens 2320 disposed in the second holder 2310 .
- the first moving unit 2200 and the second moving unit 2300 may move individually.
- the first moving unit 2200 may be in two groups.
- the first moving unit 2200 may perform a zoom function.
- the second moving unit 2300 may be in three groups.
- the second moving unit 2300 may perform an auto focus (AF) function. Separate actuators may be built in so that the first moving part 2200 and the second moving part 2300 can be driven individually.
- AF auto focus
- the first moving part 2200 may include a first holder 2210 disposed in the housing 2110 and a second lens 2220 disposed in the first holder 2210 .
- the second moving unit 2300 may include a second holder 2310 disposed in the housing 2110 and a third lens 2320 disposed in the second holder 2310 .
- the second lens 2220 may be disposed between the first lens 2120 and the third lens 2320 .
- Each of the first to third lenses 2120 , 2220 , and 2320 may include a plurality of lenses.
- the second lens 2220 and the third lens 2320 may be formed of a D-cut lens.
- the first lens 2120 may be formed of a lens having a circular cross-section. As a modification, the first lens 2120 may be formed as a D-cut lens.
- the holders 2210 and 2310 may include a plurality of protrusions 2211 and 2311 .
- the holders 2210 and 2310 may include two protrusions 2211 and 2311 spaced apart from each other in the optical axis direction.
- the upper surface of each of the two protrusions 2211 and 2311 may include planes 2211-1 and 2311-1 and inclined surfaces 2211-2 and 2311-2 inclined from the planes 2211-1 and 2311-1.
- the moving parts 2200 and 2300 may include rail grooves 2212 and 2312 in which the balls 2500 are disposed.
- the length of the rail grooves 2212 and 2312 of the moving parts 2200 and 2300 (see a of FIG. 57 ) may be 2 to 4 times the diameter of the ball 2500 .
- the length of the rail grooves 2212 and 2312 of the moving parts 2200 and 2300 may be 2.5 to 3.5 times the diameter of the ball 2500 .
- the length of the rail grooves 2212 and 2312 of the moving parts 2200 and 2300 may be approximately three times the diameter of the ball 2500 .
- the ball 2500 may move with a certain degree of freedom in the longitudinal direction. Through this, the rolling properties of the ball 2500 may be improved. That is, a phenomenon in which the ball 2500 is pushed without rolling may be minimized. Through this, the driving performance of the moving parts 2200 and 2300 such as linearity and hysteresis may be improved.
- the rail grooves 2212 and 2312 of the moving parts 2200 and 2300 have a first rail groove and a second rail groove disposed on one side of the driving magnets 2411 and 2421, and the other side of the driving magnets 2411 and 2421. It may include a third rail groove and a fourth rail groove to be arranged.
- the first rail groove and the second rail groove may be spaced apart by a distance of two to three times the diameter of the ball 2500 (see b of FIG. 57 ).
- the first rail groove and the second rail groove may be spaced apart by a distance of 1 to 4 times the diameter of the ball 2500 .
- the third rail groove and the fourth rail groove may be spaced apart by a distance of two to three times the diameter of the ball 2500 .
- the third rail groove and the fourth rail groove may be spaced apart from each other by a distance of 1.5 to 3.5 times the diameter of the ball 2500 .
- a plurality of balls may gather to cause the moving parts 2200 and 2300 to tilt. That is, according to the present embodiment, it is possible to prevent a phenomenon in which tilt of the moving parts 2200 and 2300 is caused by a plurality of balls being gathered.
- the lens driving device 2000 may include a first moving unit 2200 .
- the first moving unit 2200 may move with respect to the fixed unit 2100 . At least a portion of the first moving part 2200 may be disposed between the fixed part 2100 and the second moving part 2300 . The first moving part 2200 may move between the fixed part 2100 and the second moving part 2300 .
- the lens driving device 2000 may include a first holder 2210 .
- the first moving unit 2200 may include a first holder 2210 .
- the first holder 2210 may be disposed in the housing 2110 .
- the first holder 2210 may move with respect to the housing 2110 .
- At least a portion of the first holder 2210 may be spaced apart from the housing 2110 .
- the first holder 2210 may be in contact with the housing 2110 .
- the first holder 2210 may be in contact with the housing 2110 during movement. Alternatively, in the initial state, the first holder 2210 may be in contact with the housing 2110 .
- the first holder 2210 may include a protrusion 2211 .
- the protrusion 2211 may be a test protrusion.
- the protrusion 2211 may be formed on the outer surface of the first holder 2210 .
- the protrusion 2211 may protrude from the first holder 2210 .
- the protrusion 2211 may be seen from the outside through the first hole 2113 of the housing 2110 .
- the protrusion 2211 may be used to test whether the lens driving device 2000 operates normally.
- the protrusion 2211 may include a flat surface 2211-1 and an inclined surface 2211-2.
- the first holder 2210 may include a rail groove 2212 .
- a ball 2500 may be disposed in the rail groove 2212 .
- the ball 2500 may roll.
- the rail groove 2212 and the ball 2500 may contact each other at two points.
- the rail groove 2212 may be disposed in the optical axis direction.
- the rail groove 2212 may extend in the optical axis direction.
- the rail groove 2212 may include a plurality of rail grooves.
- the rail groove 2212 may include four rail grooves.
- the rail groove 2212 may include first to fourth rail grooves.
- One or more balls 2500 may be disposed in each of the plurality of rail grooves 2212 .
- the first holder 2210 may include a protrusion 2213 .
- the protrusion 2213 may be formed on a surface of the first holder 2210 facing the first housing 2110-1.
- the first holder 2210 may include a first surface facing the first housing 2110-1, and a plurality of protrusions 2213 formed on the first surface and contacting the first housing 2110-1. .
- the protrusion 2213 may come into contact with the first housing 2110-1 when the first holder 2210 moves in a direction closer to the first housing 2110-1. In this case, when the protrusion 2213 is formed, the contact area between the first holder 2210 and the first housing 2110-1 may be reduced compared to the case where the protrusion 2213 is omitted. Through this, the impact and noise generated due to the contact between the first holder 2210 and the first housing 2110-1 can be minimized.
- the lens driving device 2000 may include a second lens 2220 .
- the second lens 2220 may be described as one configuration of the camera device 10 rather than one configuration of the lens driving device 2000 .
- the first moving unit 2200 may include a second lens 2220 .
- the second lens 2220 may be disposed on the optical axis.
- the second lens 2220 may be disposed between the reflective member 1220 and the image sensor 3400 .
- the second lens 2220 may be disposed between the first lens 2120 and the third lens 2320 .
- the second lens 2220 may be disposed in the first holder 2210 .
- the second lens 2220 may be coupled to the first holder 2210 .
- the second lens 2220 may be fixed to the first holder 2210 .
- the second lens 2220 may move with respect to the first lens 2120 .
- the second lens 2220 may move separately from the third lens 2320 .
- the second lens 2220 may be a second group lens.
- the second lens 2220 may include a plurality of lenses.
- the second lens 2220 may include two lenses.
- the lens driving device 2000 may include a second moving unit 2300 .
- the second moving part 2300 may move with respect to the fixed part 2100 .
- the second moving unit 2300 may move separately from the first moving unit 2200 .
- the second moving part 2300 may be disposed behind the first moving part 2200 .
- the second moving unit 2300 may move in a direction closer to and away from the first moving unit 2200 .
- the lens driving device 2000 may include a second holder 2310 .
- the second moving unit 2300 may include a second holder 2310 .
- the second holder 2310 may be disposed in the housing 2110 .
- the second holder 2310 may move with respect to the housing 2110 . At least a portion of the second holder 2310 may be spaced apart from the housing 2110 .
- the second holder 2310 may be in contact with the housing 2110 .
- the second holder 2310 may come into contact with the housing 2110 when moving.
- the second holder 2310 may be in contact with the housing 2110 .
- the second holder 2310 may be in contact with the first holder 2210 .
- the second holder 2310 may be spaced apart from the first holder 2210 .
- the second holder 2310 may come into contact with the first holder 2210 when moving.
- the initial state the second holder 2310 may be in contact with the first holder 2210 .
- the second holder 2310 may include a protrusion 2311 .
- the protrusion 2311 may be a test protrusion.
- the protrusion 2311 may be formed on the outer surface of the second holder 2310 .
- the protrusion 2311 may protrude from the second holder 2310 .
- the protrusion 2311 may be seen from the outside through the first hole 2113 of the housing 2110 .
- the protrusion 2311 may be used when testing whether the lens driving device 2000 operates normally.
- the protrusion 2311 may include a flat surface 2311 - 1 and an inclined surface 2311 - 2 .
- the second holder 2310 may include a rail groove 2312 .
- a ball 2500 may be disposed in the rail groove 2312 .
- the ball 2500 may roll.
- the rail groove 2312 and the ball 2500 may contact each other at two points.
- the rail groove 2312 may be disposed in the optical axis direction.
- the rail groove 2312 may extend in the optical axis direction.
- the rail groove 2312 may include a plurality of rail grooves.
- the rail groove 2312 may include four rail grooves.
- the rail groove 2312 may include first to fourth rail grooves.
- One or more balls 2500 may be disposed in each of the plurality of rail grooves 2312 .
- the second holder 2310 may include a protrusion 2313 .
- the protrusion 2313 may be formed on a surface facing the first holder 2210 of the second holder 2310 .
- the second holder 2310 may include a second surface facing the first holder 2210 and a plurality of protrusions 2313 formed on the second surface and contacting the second holder 2310 .
- the protrusion 2313 may come into contact with the first holder 2210 when the second holder 2310 moves in a direction closer to the first holder 2210 . In this case, when the protrusion 2313 is formed, the contact area between the second holder 2310 and the first holder 2210 may be reduced compared to the case where the protrusion 2313 is omitted. Through this, shock and noise generated due to the contact between the second holder 2310 and the first holder 2210 can be minimized.
- the lens driving device 2000 may include a third lens 2320 .
- the third lens 2320 may be described as one configuration of the camera device 10 rather than one configuration of the lens driving device 2000 .
- the second moving unit 2300 may include a third lens 2320 .
- the third lens 2320 may be disposed on the optical axis.
- the third lens 2320 may be disposed between the reflective member 1220 and the image sensor 3400 .
- the third lens 2320 may be disposed between the second lens 2220 and the image sensor 3400 .
- the third lens 2320 may be disposed in the second holder 2310 .
- the third lens 2320 may be coupled to the second holder 2310 .
- the third lens 2320 may be fixed to the second holder 2310 .
- the third lens 2320 may move with respect to the first lens 2120 .
- the third lens 2320 may move separately from the second lens 2220 .
- the third lens 2320 may be a third group lens.
- the third lens 2320 may include a plurality of lenses.
- the third lens 2320 may include two lenses.
- the lens driving device 2000 may include a driving unit 2400 .
- the driving unit 2400 may move at least some of the plurality of lenses.
- the driving unit 2400 may move the first moving unit 2200 and the second moving unit 2300 with respect to the fixed unit 2100 .
- the driving unit 2400 may include a coil and a magnet.
- the driving unit 2400 may move the first moving unit 2200 and the second moving unit 2300 through electromagnetic interaction.
- the driving unit 2400 may include a shape memory alloy.
- the driving unit 2400 may include driving magnets 2411 and 2421 .
- the driving magnets 2411 and 2421 may be disposed on the moving parts 2200 and 2300 .
- the driving magnets 2411 and 2421 may be disposed on the holders 2210 and 2310 .
- the driving magnets 2411 and 2421 may include a first driving magnet 2411 disposed on the first moving part 2200 and a second driving magnet 2421 disposed on the second moving part 2300 .
- the driving unit 2400 may include coils 2412 and 2422 .
- the coils 2412 and 2422 may be disposed on the substrate 2140 .
- the coils 2412 and 2422 may be disposed at positions corresponding to the driving magnets 2411 and 2421 .
- the coils 2412 and 2422 may include a first coil 2412 disposed on the first substrate 2141 and disposed at a position corresponding to the first driving magnet 2411 .
- the coils 2412 and 2422 may include a second coil 2422 disposed on the second substrate 2142 and disposed at a position corresponding to the second driving magnet 2421 .
- the first moving unit 2200 When a current is applied to the first coil 2412 , the first moving unit 2200 may move to perform a zoom function. When a current is applied to the second coil 2422 , the second moving unit 2300 may move to perform an autofocus function.
- the camera device 10 may include a driver IC 3900 electrically connected to the coils 2412 and 2422 .
- the driver IC 3900 may be disposed on the printed circuit board 3300 . That is, the driver IC 3900 may be disposed on a substrate separate from the substrate 2140 on which the coils 2412 and 2422 are disposed. Accordingly, the driver IC 3900 may not be electrically connected to the coils 2412 and 2422 before the printed circuit board 3300 is coupled to the lens driving device 2000 .
- the driving unit 2400 may include a first driving unit 2410 .
- the first driving unit 2410 may move the first moving unit 2200 with respect to the fixing unit 2100 .
- the first driving unit 2410 may move the first moving unit 2200 with respect to the second moving unit 2300 .
- the first driver 2410 may be used to drive a zoom function. Alternatively, the first driver 2410 may be used to drive the auto focus function.
- the first driving unit 2410 may include a first driving magnet 2411 .
- the first driving magnet 2411 may be disposed on the first moving part 2200 .
- the first driving magnet 2411 may be disposed in the first holder 2210 .
- the first driving magnet 2411 may be disposed on a side surface of the first holder 2210 .
- the first driving magnet 2411 may be coupled to the first holder 2210 .
- the first driving magnet 2411 may be fixed to the first holder 2210 .
- the first driving magnet 2411 may be fixed to the first holder 2210 by an adhesive.
- the first driving magnet 2411 may move integrally with the first holder 2210 .
- the first driving magnet 2411 may be disposed to face the first coil 2412 .
- the first driving magnet 2411 may face the first coil 2412 .
- the first driving magnet 2411 may be disposed at a position corresponding to the first coil 2412 .
- the first driving magnet 2411 may interact with the first coil 2412 .
- a portion of the first driving magnet 2411 may overlap the second driving magnet 2421 in the first direction.
- a portion of the first driving magnet 2411 may overlap the second driving magnet 2421 in a first direction perpendicular to the optical axis direction.
- the first driving magnet 2411 may include a portion that does not overlap the second driving magnet 2421 in the first direction.
- the first driving magnet 2411 may be formed to have the same size as the second driving magnet 2421 .
- the first driving magnet 2411 may be disposed closer to the first lens 2120 than the second driving magnet 2421 .
- the first driving magnet 2411 may include a first magnet unit 2411 - 1 .
- the first magnet unit 2411 - 1 may have a first polarity.
- the first driving magnet 2411 may include a second magnet unit 2411 - 2 .
- the second magnet unit 2411 - 2 may have a second polarity different from the first polarity.
- the first polarity may be an N pole and the second polarity may be an S pole.
- the first polarity may be an S pole and the second polarity may be an N pole.
- the first driving magnet 2411 may include a neutral part 2411-3.
- the neutral part 2411-3 may be disposed between the first magnet part 2411-1 and the second magnet part 2411-2.
- the neutral portion 2411-3 may have a neutral polarity.
- the neutral portion 2411-3 may be a non-magnetized portion.
- the performance of sensitivity and linearity of the output signal may be improved due to the gap between the two hall sensors and the magnet.
- the void of the magnet may be smaller than the void of the coil.
- two single-pole magnets can be used, with a neutral and no voids.
- the first driving magnet 2411 may include a first magnet part 2411 - 1 having an N pole and an S pole.
- the first driving magnet 2411 may include a second magnet unit 2411 - 2 having an N pole and an S pole.
- the first driving magnet 2411 may include a neutral part 2411-3 or an air gap disposed between the first magnet part 2411-1 and the second magnet part 2411-2.
- the first magnet unit 2411 - 1 may include a region having an N pole and a region having an S pole.
- the second magnet unit 2411 - 2 may include a region having an N pole and a region having an S pole.
- the neutral portion 2411-3 or the void may have a neutral polarity. In the optical axis direction, the size of the neutral portion 2411-3 or the void (see FIG. 64 b) is smaller than the hollow size of the first coil 2412 (see FIG. 64 a) and the first Hall sensor 2413 and It may be greater than the distance between the second Hall sensors 2414 (see c of FIG. 64
- the first driving unit 2410 may include a first coil 2412 .
- the first coil 2412 may be disposed on the fixing part 2100 .
- the first coil 2412 may be disposed at a position corresponding to the first driving magnet 2411 .
- the first coil 2412 may be disposed on the substrate 2140 .
- the first coil 2412 may be disposed on the first substrate 2141 .
- the first coil 2412 may be disposed in the housing 2110 .
- the first coil 2412 may be disposed outside the first holder 2210 .
- the first coil 2412 may be disposed on the first holder 2210
- the first driving magnet 2411 may be disposed on the housing 2110 .
- the center of the first coil 2412 may be disposed in front of the center of the second coil 2422 .
- a portion of the first coil 2412 may overlap the second coil 2422 in a first direction perpendicular to the optical axis direction.
- the first coil 2412 may include a portion that does not overlap the second coil 2422 in the first direction.
- Another portion of the first coil 2412 may not overlap the second coil 2422 in the first direction.
- the first coil 2412 may be formed to have the same size as the second coil 2422 .
- the first coil 2412 may be disposed closer to the first lens 2120 than the second coil 2422 .
- the center of the first coil 2412 may be disposed at a height corresponding to the center of the second coil 2422 .
- the first direction may be an x-axis direction.
- the second direction may be a y-axis direction.
- the centers of the coils 2412 and 2422 may be located at the center of the driving region.
- the position of the first coil 2412 and the position of the second coil 2422 are not symmetrical. it may not be
- the first coil 2412 may be formed in a ring shape.
- the first coil 2412 may be formed as a square ring or a circular ring. Even when the first coil 2412 is formed in a rectangular ring shape, the corner portion may be formed to be curved.
- the first coil 2412 may include a first portion 2412 - 1 and a second portion 2412 - 2 having a gap G1 therebetween.
- First and second Hall sensors 2413 and 2414 may be disposed in the gap G1 of the first coil 2412 .
- the first coil 2412 may include a first portion 2412 - 1 facing the first magnet portion 2411 - 1 .
- the first coil 2412 may include a second portion 2412 - 2 facing the second magnet portion 2411 - 2 .
- the first portion 2412 - 1 of the first coil 2412 may not overlap the second magnet portion 2411 - 2 in the first direction.
- the second portion 2412 - 2 of the first coil 2412 may not overlap the first magnet portion 2411 - 1 in the first direction.
- the first direction may be an x-axis direction.
- the lens driving device 2000 may include a Hall sensor.
- the Hall sensor may detect the first driving magnet 2411 .
- the Hall sensor may include a plurality of Hall sensors.
- the Hall sensor may include a first Hall sensor 2413 and a second Hall sensor 2414 .
- the first Hall sensor 2413 and the second Hall sensor 2414 may be spaced apart from each other.
- the first Hall sensor 2413 and the second Hall sensor 2414 may be spaced apart to form a gap G2 therebetween.
- the first Hall sensor 2413 and the second Hall sensor 2414 may detect the first driving magnet 2411 .
- the first Hall sensor 2413 and the second Hall sensor 2414 may detect a magnetic force of the first driving magnet 2411 .
- the first Hall sensor 2413 and the second Hall sensor 2414 may detect the position of the first holder 2210 .
- the first Hall sensor 2413 and the second Hall sensor 2414 may detect the position of the second lens 2220 .
- the Hall sensor may be disposed on the substrate 2140 .
- the Hall sensor may be
- the lens driving device 2000 may include a yoke 2415 .
- the yoke 2415 may be disposed between the first driving magnet 2411 and the first holder 2210 .
- the yoke 2415 may be disposed between the first driving magnet 2411 and the first moving part 2200 .
- the yoke 2415 may be formed in a shape corresponding to the first driving magnet 2411 .
- the yoke 2415 may increase the interaction force between the first driving magnet 2411 and the first coil 2412 .
- the yoke 2415 may surround at least three surfaces of the first driving magnet 2411 .
- the yoke 2415 may include an extension 2415 - 1 .
- the extension 2415 - 1 may surround the front and rear surfaces of the first driving magnet 2411 .
- the yoke 2415 may include a groove 2415 - 2 .
- the groove 2415 - 2 may be formed in the center of the body portion of the yoke 2415 .
- the driving unit 2400 may include a second driving unit 2420 .
- the second driving unit 2420 may move the second moving unit 2300 with respect to the fixing unit 2100 .
- the second driving unit 2420 may move the second moving unit 2300 with respect to the first moving unit 2200 .
- the second driver 2420 may be used to drive an autofocus function. Alternatively, the second driver 2420 may be used to drive the zoom function.
- the second driving unit 2420 may include a second driving magnet 2421 .
- the second driving magnet 2421 may be disposed on the second moving part 2300 .
- the second driving magnet 2421 may be disposed in the second holder 2310 .
- the second driving magnet 2421 may be disposed on a side surface of the second holder 2310 .
- the second driving magnet 2421 may be coupled to the second holder 2310 .
- the second driving magnet 2421 may be fixed to the second holder 2310 .
- the second driving magnet 2421 may be fixed to the second holder 2310 by an adhesive.
- the second driving magnet 2421 may move integrally with the second holder 2310 .
- the second driving magnet 2421 may be disposed to face the second coil 2422 .
- the second driving magnet 2421 may face the second coil 2422 .
- the second driving magnet 2421 may be disposed at a position corresponding to the second coil 2422 .
- the second driving magnet 2421 may interact with the second coil 2422 .
- the second driving unit 2420 may include a second coil 2422 .
- the second coil 2422 may be disposed on the fixing part 2100 .
- the second coil 2422 may be disposed at a position corresponding to the second driving magnet 2421 .
- the second coil 2422 may be disposed on the substrate 2140 .
- the second coil 2422 may be disposed on the second substrate 2142 .
- the second coil 2422 may be disposed in the housing 2110 .
- the second coil 2422 may be disposed outside the second holder 2310 .
- the second coil 2422 may be disposed on the second holder 2310 and the second driving magnet 2421 may be disposed on the housing 2110 .
- the lens driving device 2000 may include a Hall sensor.
- the Hall sensor may detect the second driving magnet 2421 .
- the Hall sensor may include a plurality of Hall sensors.
- the Hall sensor may include a third Hall sensor 2423 and a fourth Hall sensor 2424 .
- the third Hall sensor 2423 and the fourth Hall sensor 2424 may be spaced apart from each other.
- the third Hall sensor 2423 and the fourth Hall sensor 2424 may be spaced apart to form a gap G2 therebetween.
- the third Hall sensor 2423 and the fourth Hall sensor 2424 may detect the second driving magnet 2421 .
- the third Hall sensor 2423 and the fourth Hall sensor 2424 may detect the magnetic force of the second driving magnet 2421 .
- the third Hall sensor 2423 and the fourth Hall sensor 2424 may detect the position of the second holder 2310 .
- the third Hall sensor 2423 and the fourth Hall sensor 2424 may detect the position of the third lens 2320 .
- the lens driving device 2000 may include a yoke 2425 .
- the yoke 2425 may be disposed between the second driving magnet 2421 and the second holder 2310 .
- the yoke 2425 may be formed in a shape corresponding to the second driving magnet 2421 .
- the yoke 2425 may increase the interaction force between the second driving magnet 2421 and the second coil 2422 .
- the lens driving device 2000 may include a first yoke 2430 .
- the first yoke 2430 may be a magnetic material.
- the first yoke 2430 may be disposed such that an attractive force acts between the first yoke 2430 and the first driving magnet 2411 .
- the first yoke 2430 may be disposed in the housing 2110 .
- the first yoke 2430 may be disposed on the substrate 2140 .
- the first yoke 2430 may be disposed on the first substrate 2141 .
- the first holder 2210 may press the ball 2500 toward the guide rail 2130 by the attractive force between the first driving magnet 2411 and the first yoke 2430 . That is, the ball 2500 may be maintained between the first holder 2210 and the guide rail 2130 without being separated by the attractive force between the first driving magnet 2411 and the first yoke 2430 .
- the width of the first yoke 2430 is greater than the width of the first surface of the first driving magnet 2411 facing the first surface of the first yoke 2430 . can be formed.
- the lens driving device 2000 may include a second yoke 2440 .
- the second yoke 2440 may be a magnetic material.
- the second yoke 2440 may be disposed such that an attractive force acts between the second yoke 2440 and the second driving magnet 2421 .
- the second yoke 2440 may be disposed in the housing 2110 .
- the second yoke 2440 may be disposed on the substrate 2140 .
- the second yoke 2440 may be disposed on the second substrate 2142 .
- the second holder 2310 may press the ball 2500 toward the guide rail 2130 by the attractive force between the second driving magnet 2421 and the second yoke 2440 . That is, the ball 2500 may be maintained between the second holder 2310 and the guide rail 2130 without being separated by the attractive force between the second driving magnet 2421 and the second yoke 2440 .
- the width of the second yoke 2440 is greater than the width of the first surface of the second driving magnet 2421 facing the first surface of the second yoke 2440 . can be formed.
- the lens driving device 2000 may include a ball 2500 .
- the ball 2500 may guide the movement of the first holder 2210 .
- the ball 2500 may be disposed between the guide rail 2130 and the moving parts 2200 and 2300 .
- the ball 2500 may be disposed between the first holder 2210 and the guide rail 2130 .
- the ball 2500 may guide the movement of the second holder 2310 .
- the ball 2500 may be disposed between the second holder 2310 and the guide rail 2130 .
- the ball 2500 may be formed in a spherical shape.
- the ball 2500 may roll the rail groove 2212 of the first holder 2210 and the rail 2133 of the guide rail 2130 .
- the ball 2500 may move in the optical axis direction between the rail groove 2212 of the first holder 2210 and the rail 2133 of the guide rail 2130 .
- the ball 2500 may roll the rail groove 2312 of the second holder 2310 and the rail 2133 of the guide rail 2130 .
- the ball 2500 may move in the optical axis direction between the rail groove 2312 of the second holder 2310 and the rail 2133 of the guide rail 2130 .
- the ball 2500 may include a plurality of balls.
- the ball 2500 may be provided in a total of eight, four in the first holder 2210 and four in the second holder 2310 .
- the lens driving device 2000 may include a dummy glass 2600 .
- the dummy glass 2600 may be disposed in the housing 2110 .
- the dummy glass 2600 may close the rear opening of the housing 2110 .
- the dummy glass 2600 may be formed to be transparent to allow light to pass therethrough.
- the lens driving device 2000 may include a poron 2700 .
- the poron 2700 may be a shock absorbing member.
- the poron 2700 may be disposed on the fixing part 2100 .
- the poron 2700 may be disposed in the housing 2110 .
- the poron 2700 may be disposed in the first housing 2110-1.
- the poron 2700 may be in contact with the first holder 2210 .
- the poron 2700 may be in contact with the second holder 2310 .
- the poron 2700 may be disposed in the second housing 2110 - 2 .
- the poron 2700 may minimize the shock and noise generated by the movement of the first holder 2210 and the second holder 2310 .
- the poron 2700 may be disposed at a portion where the first holder 2210 collides with the housing 2110 .
- the poron 2700 may be disposed at a portion where the second holder 2310 collides with the housing 2110 .
- the lens driving device 2000 may include a shock absorbing member.
- the shock absorbing member may be formed of rubber.
- the shock absorbing member may be formed of silicon.
- 66 to 68 are diagrams for explaining implementation of a zoom function and an autofocus function of the lens driving apparatus according to the present embodiment.
- the first lens 2120 , the second lens 2220 , and the third lens 2320 may be arranged in a state aligned with the optical axis OA in an initial state in which no current is supplied to the driving unit 2400 . There is (see FIG. 66).
- the second lens 2220 may move along the optical axis OA due to electromagnetic interaction between the first coil 2412 and the first driving magnet 2411 . There is (see a in FIG. 67). As the second lens 2220 moves while the first lens 2120 is fixed, a zoom function may be performed. When a current in the first direction is applied to the first coil 2412 , the second lens 2220 may move in a direction closer to the first lens 2120 . When a current in a second direction opposite to the first direction is applied to the first coil 2412 , the second lens 2220 may move in a direction away from the first lens 2120 .
- the third lens 2320 may move along the optical axis OA due to electromagnetic interaction between the second coil 2422 and the second driving magnet 2421.
- An autofocus (AF) function may be performed by relative movement of the third lens 2320 with respect to the first lens 2120 and the second lens 2220 .
- the third lens 2320 may move in a direction closer to the first lens 2120 .
- the third lens 2320 may move in a direction away from the first lens 2120 .
- the lens driving device 2000 described above may be replaced with the lens driving device of FIGS. 73 to 79 to be described later. That is, the reflective member driving apparatus 1000 of the present embodiment and the lens driving apparatus of FIGS. 73 to 79 may be disposed together.
- FIG. 1 is a perspective view of a camera device according to this embodiment
- FIG. 2 is a bottom perspective view of the camera device according to this embodiment
- FIG. 3 is a plan view of the camera device according to this embodiment
- FIG. 4 is A-A of FIG.
- FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3
- FIG. 6 is a cross-sectional view taken along line C-C of FIG. 3
- FIG. 7 is an exploded perspective view of the camera device according to this embodiment
- FIG. 8 is this embodiment 69 is a perspective view of a partial configuration of the camera device according to the present embodiment
- FIG. 70 is an exploded view of the image sensor, filter, and related components of the camera device according to the present embodiment. is a perspective view.
- the camera device 10 may include a cover member 3100 .
- the cover member 3100 may be a 'cover can' or a 'shield can'.
- the cover member 3100 may be disposed to cover the reflective member driving device 1000 and the lens driving device 2000 .
- the cover member 3100 may be disposed outside the reflective member driving device 1000 and the lens driving device 2000 .
- the cover member 3100 may surround the reflective member driving device 1000 and the lens driving device 2000 .
- the cover member 3100 may accommodate the reflective member driving device 1000 and the lens driving device 2000 .
- the cover member 3100 may be formed of a metal material.
- the cover member 3100 may block electromagnetic interference (EMI). An insulating epoxy may be applied to prevent contact between the solder and the shield can.
- EMI electromagnetic interference
- the cover member 3100 may include a top plate 3110 .
- the upper plate 3110 may include an opening or a hole. Light may be incident through the opening or hole of the upper plate 3110 .
- the opening or hole of the upper plate 3110 may be formed at a position corresponding to the reflective member 1220 .
- the cover member 3100 may include a side plate 3120 .
- the side plate 3120 may include a plurality of side plates.
- the side plate 3120 may include four side plates.
- the side plate 3120 may include first to fourth side plates.
- the side plate 3120 may include first and second side plates disposed opposite to each other, and third and fourth side plates disposed opposite to each other.
- the camera device 10 may include a printed circuit board 3300 (PCB, Printed Circuit Board).
- the printed circuit board 3300 may be a board or a circuit board.
- a sensor base 3500 may be disposed on the printed circuit board 3300 .
- the printed circuit board 3300 may be electrically connected to the reflective member driving device 1000 and the lens driving device 2000 .
- the printed circuit board 3300 may be provided with various circuits, elements, control units, etc. to convert an image formed on the image sensor 3400 into an electrical signal and transmit it to an external device.
- the printed circuit board 3300 may include a marking unit 3310 .
- a marking unit 3310 may be disposed on the rear surface of the printed circuit board 3300 .
- the camera device 10 may include a SUS 3320 .
- the suspension 3320 may be disposed on the rear surface of the printed circuit board 3300 .
- the suspension 3320 may reinforce the strength of the printed circuit board 3300 .
- the suspension 3320 may emit heat generated in the printed circuit board 3300 .
- the camera device 10 may include an image sensor 3400 .
- the image sensor 3400 may be disposed on the printed circuit board 3300 . Light passing through the lens and filter 3600 may be incident to the image sensor 3400 to form an image.
- the image sensor 3400 may be electrically connected to the printed circuit board 3300 .
- the image sensor 3400 may be coupled to the printed circuit board 3300 by a surface mounting technology (SMT).
- SMT surface mounting technology
- the image sensor 3400 may be coupled to the printed circuit board 3300 by flip chip technology.
- the image sensor 3400 may be disposed so that the lens and the optical axis coincide. The optical axis of the image sensor 3400 and the optical axis of the lens may be aligned.
- the image sensor 3400 may convert light irradiated to the effective image area of the image sensor 3400 into an electrical signal.
- the image sensor 3400 may include any one or more of a charge coupled device (CCD), a metal oxide semi-conductor (MOS), a CPD, and a CID.
- CCD charge coupled device
- MOS metal oxide semi-conductor
- CPD CPD
- CID CID
- the camera device 10 may include a sensor base 3500 .
- the sensor base 3500 may be disposed on the printed circuit board 3300 .
- a filter 3600 may be disposed on the sensor base 3500 .
- An opening may be formed in a portion of the sensor base 3500 where the filter 3600 is disposed so that light passing through the filter 3600 may be incident on the image sensor 3400 .
- the camera device 10 may include a filter 3600 .
- the filter 3600 may serve to block light of a specific frequency band from being incident on the image sensor 3400 in light passing through the lens.
- the filter 3600 may be disposed between the lens and the image sensor 3400 .
- the filter 3600 may be disposed on the sensor base 3500 .
- the filter 3600 may include an infrared filter.
- the infrared filter may block light in the infrared region from being incident on the image sensor 3400 .
- the filter 3600 may be disposed opposite to the image sensor 3400 with respect to the sensor base 3500 . A part of the filter 3600 may protrude from the sensor base 3500 .
- the camera device 10 may include a substrate 3700 .
- the substrate 3700 may be connected to the printed circuit board 3300 .
- the substrate 3700 may extend from the printed circuit board 3300 .
- the substrate 3700 may include a terminal electrically connected to the reflective member driving apparatus 1000 .
- the substrate 3700 may include an extension extending outward.
- the camera device 10 may include a connector 3710 .
- the connector 3710 may be disposed on the board 3700 .
- the connector 3710 may be disposed on the lower surface of the extension part of the board 3700 .
- the connector 3710 may be connected to, for example, a power supply unit of a smartphone.
- the camera device 10 may include a temperature sensor 3800 .
- the temperature sensor 3800 may be disposed on the substrate 2140 .
- the temperature sensor 3800 may be disposed adjacent to the coils 2412 and 2422 .
- the temperature sensor 3800 may be disposed to overlap the coils 2412 and 2422 .
- the coils 2412 and 2422 may be driven and generate heat.
- the temperature sensor 3800 may detect heat generated by the coils 2412 and 2422 .
- the temperature sensor 3800 is disposed adjacent to the coils 2412 and 2422 to check the degree of heat generation.
- the temperature sensor 3800 may sense a temperature.
- a compensation value may be applied to the zoom and/or auto focus (AF) operation according to the degree of heat detected by the temperature sensor 3800 .
- the temperature sensed by the temperature sensor 3800 may be used for more accurate control of any one or more of a hand shake correction function, an autofocus function, and a zoom function.
- the camera device 10 may include a driver IC 3900 .
- the driver IC 3900 may be electrically connected to the lens driving device 2000 .
- the driver IC 3900 may be described as one configuration of the lens driving device 2000 .
- the driver IC 3900 may be electrically connected to the first coil 2412 and the second coil 2422 of the lens driving device 2000 .
- the driver IC 3900 may supply current to the first coil 2412 and the second coil 2422 of the lens driving device 2000 .
- the driver IC 3900 may control at least one of a voltage or a current applied to each of the first coil 2412 and the second coil 2422 of the lens driving device 2000 .
- the driver IC 3900 may be electrically connected to the Hall sensors 2413 , 2414 , 2423 , and 2424 .
- the driver IC 3900 includes the first coil 2412 and the second coil 2422 through the positions of the second lens 2220 and the third lens 2320 sensed by the Hall sensors 2413, 2414, 2423, and 2424. It is possible to feedback control the voltage and current applied to the .
- FIG. 71 is a perspective view of the front side of the optical device according to the present embodiment
- FIG. 72 is a perspective view of the rear side of the optical device according to the present embodiment.
- the optical device 1 is a mobile phone, a mobile phone, a mobile terminal, a mobile terminal, a smart phone, a smart pad, a portable smart device, a digital camera, a laptop computer, a digital broadcasting terminal, PDA (Personal Digital Assistants) , PMP (Portable Multimedia Player), and may include any one or more of navigation.
- the optical device 1 may include any device for taking an image or a picture.
- the optical device 1 may include a body 20 .
- the optical device 1 may include a camera device 10 .
- the camera device 10 may be disposed on the body 20 .
- the camera device 10 may photograph a subject.
- the optics 1 may include a display 30 .
- the display 30 may be disposed on the body 20 .
- the display 30 may output any one or more of an image and an image captured by the camera device 10 .
- the display 30 may be disposed on the first surface of the body 20 .
- the camera device 10 may be disposed on one or more of a first surface of the body 20 and a second surface opposite to the first surface.
- the camera device 10 according to the present embodiment may be a folded camera module.
- the folded camera module may have an angle of view of 15 degrees to 40 degrees.
- the folded camera module may have a focal length of 18 mm to 20 mm or more.
- the folded camera module may be used as a rear camera of the optical device 1 .
- a main camera having an angle of view of 70 degrees to 80 degrees may be disposed on the rear side of the optical device 1 .
- the folded camera may be disposed next to the main camera. That is, the camera device 10 according to the present embodiment may be applied to any one or more of a plurality of rear cameras of the optical device 1 .
- the camera device 10 according to the present embodiment may be applied to one of the two, three, four or more rear cameras of the optical device 1 .
- the camera device 10 may also be disposed on the front side of the optical device 1 .
- a wide-angle camera may be applied.
- one of them may be a tele camera as in this embodiment.
- a normal camera module that does not include a reflective member rather than a folded camera module may be applied.
- 73 is a block diagram of a lens driving device according to an embodiment of the present invention.
- the lens driving device 4100 includes a lens barrel 4120 and a magnet 4110 disposed in the lens barrel 4120, a position measurement unit 4130, a control unit 4150, It may include a coil 4160 and a memory (not shown) for storing control algorithm or calibration information.
- the magnet 4110 may be a magnetic material disposed on a lens barrel (not shown).
- the magnet 4110 may move together with the lens barrel, and the position of the lens barrel may be known by detecting the position of the magnet 4110 .
- the distance the magnet 4110 moves when it is driven is referred to as a movement stroke.
- One or more lenses may be coupled to the lens barrel, and a group 1 lens including a plurality of lenses may be coupled, and may include a plurality of lens groups.
- One or more magnets 4110 may be disposed for each lens or lens group to be driven or to detect a position.
- a plurality of magnets 4110 may be disposed to drive the lens in a plurality of directions or detect a position.
- a movement stroke of the magnet 4110 may be set according to a moving distance to control the position of the lens.
- the magnet 4110 may perform zoom, autofocus (AF), and image stabilization (OIS) functions according to the purpose of driving the lens.
- AF autofocus
- OIS image stabil
- the magnet of the lens driving device is divided into a driving magnet driving to move the position of the lens or lens barrel and a sensing magnet in which the position measuring unit 4130 such as a hall sensor measures the position to measure the position of the lens or the lens barrel.
- the magnet 4110 may simultaneously perform functions of a driving magnet and a sensing magnet. That is, a driving magnet and a sensing magnet may be implemented with one magnet 4110 . Through this, the number of magnets can be reduced and the product can be miniaturized.
- the position measuring unit 4130 may be a hall sensor.
- the Hall sensor is a sensor that detects a position by detecting a change in magnetism, and may detect the position of the magnet 4110 by using a change in magnetism generated according to the position movement of the magnet 4110 .
- the magnet 4110 may include a first pole 4111 , an air gap 4112 , and a second pole 4113 .
- one of the first pole 4111 and the second pole 4113 may be an N pole and the other may be an S pole.
- the void 4112 is a Neutral Zone (N.Z) and may be a region having no polarity.
- the magnet 4110 is formed through magnetization to magnetize a magnetic material to have a polarity. In this case, in performing magnetization using a magnetizing jig (Zig), the magnet 4110 may be formed by forming a non-polar void between the N pole and the S pole.
- the length of the air gap is set according to the movement stroke length of the magnet 4110 .
- a gap 4112 is formed between the first pole 4111 and the second pole 4113, and the length of the gap 4112 may be set according to the length of the movement stroke of the magnet 4110.
- 75 shows a void 4112 having a predetermined length in the longitudinal direction between the first pole 4111 and the second pole 4113 as an actual embodiment of the magnet.
- the magnet flux may be as shown in FIG. 76 .
- the graph may be a graph of a signal measured by a position measuring unit that measures the position of the magnet 4110 . As shown in FIG. 76 , it does not have linearity at all positions according to the movement position of the magnet 4110 , but has linearity for a predetermined section 4410 and then deviates from the corresponding section. It may have a cubic function form in the nonlinear section. When a signal in a non-linear section is used, control performance is deteriorated.
- a void 4112 having a predetermined length may be formed in the magnet 4110 .
- linearity may increase, but if it is too long, the magnitude of the magnetic flux of the magnet 4110 may be reduced, and thus, the driving force may be reduced. That is, in order to implement the long stroke of the magnet 4110 , it is important to form the air gap 4112 and, at the same time, form the optimal length of the air gap 4112 according to the length of the movement stroke.
- the length of the gap 4112 may be set in proportion to the length of the movement stroke of the magnet 4110 .
- the length of the gap 4112 in the moving direction of the magnet 4110, in the moving direction of the magnet 4110 may be set to 1/4 to 3/4 of the movement stroke length.
- the length of the air gap 4112 may be set within the range of 0.75 to 2.25 mm.
- the length of the air gap 4112 may be set to 1/2 the length of the movement stroke.
- the length of the air gap 4112 may be set to 1.5 mm.
- the length of the void 4112 may be set in consideration of the tolerance. That is, the length of the gap 4112 may be set within a tolerance range of 1/2 of the movement stroke length in the moving direction of the magnet 4110 .
- the manufacturing tolerance of the magnet manufacturing tolerance and the printed circuit board (PCB) mounting (SMT) manufacturing tolerance of the position measuring unit measuring the position of the magnet 4110 may be considered.
- the tolerance range may be 10%.
- the length L 2 of the void 4112 may be set as follows.
- L 1 may be a movement stroke length of the magnet 4110
- E may be 10% as a tolerance range.
- the length of the air gap 4112 may be set to 0.45 to 0.55 times the length of the movement stroke.
- the length of the air gap 4112 may be set within the range of 1.35 to 1.65 mm.
- the tolerance range may be set by a user or may be set differently in consideration of a tolerance of a magnet or a tolerance of a Hall sensor.
- FIG. 77 is a block diagram of a camera module according to an embodiment of the present invention
- FIG. 78 is a block diagram of a camera module according to another embodiment of the present invention.
- a detailed description of each configuration of the camera module according to an embodiment of the present invention corresponds to a detailed description of each configuration of the lens driving device of FIGS. do.
- a camera module includes a plurality of lens groups 4140 including at least one lens group having a fixed position and at least one movable lens group, and a lens in which the plurality of lens groups 4140 are disposed.
- the length of the air gap 4112 may be set according to the movement stroke length of the magnet 4110 .
- the plurality of lens groups 4140 may include a first lens group that is at least one lens group fixed in position and a second lens group that is at least one movable lens group.
- the movable lens group may further include a third lens group (not shown) to an n-th lens group, an OIS lens, a right-angle prism, a filter for preventing foreign matter, an IR (Infrared) filter, and the like.
- the first lens group, the second lens group, and the third lens group may be sequentially arranged.
- the OIS lens or the right angle prism may be disposed at the front end of the first lens group.
- Each lens group may include a plurality of lenses.
- Continuous magnification adjustment may be possible according to a distance between two lens groups among the plurality of lens groups 4140 .
- the magnification may be continuously adjusted according to the movement of the second lens group, and the focus may be adjusted according to the movement of the third lens group.
- the movement amount of the third lens group may be greater than the movement amount of the second lens group.
- the meaning of continuously increasing or decreasing the magnification may mean that the magnification increases or decreases linearly rather than intermittently increasing or decreasing digitally.
- the magnet 4110 includes a first pole 4111 , a gap 4112 , and a second pole 4113 , and the length of the gap 4112 may be set in proportion to the movement stroke length of the magnet 4110 .
- the length of the gap 4112 in the moving direction of the magnet 4110 may be set within a tolerance range of 1/2 of the movement stroke length, and the tolerance range may be 10%.
- the position measuring unit 4130 is disposed to face the magnet 4110 , and detects a change in magnetism according to the movement of the magnet 4110 to measure the position of the magnet 4110 .
- the position measuring unit 4130 may include a first position measuring unit 4131 and a second position measuring unit 4132 as shown in FIG. It is connected to receive a signal to detect the position of the magnet (4110).
- the controller 4150 may be a driver IC.
- the controller 4150 may include at least one processor that processes a control algorithm for driving the lens driving device stored in the memory.
- control algorithm is an algorithm for detecting a position and attitude difference using a hall sensor or a gyro sensor, which is a position measuring unit, and driving an actuator based on this, and the control unit 4150 uses the algorithm to zoom
- the coil 4140 may be driven to perform an auto focus (AF) or an image stabilization (OIS) function.
- AF auto focus
- OIS image stabilization
- the position of the magnet 4110 may be adjusted by the magnetism between the coil 4140 and the magnet 4110 . Through this, it is possible to perform zoom, auto-focus, and anti-shake functions.
- a camera module may be implemented as shown in FIG. 79 .
- the magnet 4110 may have a first pole, a gap, and a second pole, and the length of the gap may be set according to the length of the movement stroke of the magnet 4110 to implement a long stroke.
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Abstract
Description
Claims (10)
- 고정부;상기 고정부 내에 배치되는 제1이동부와 제2이동부;상기 제1이동부에 배치되는 제1구동 마그네트;상기 제2이동부에 배치되는 제2구동 마그네트;상기 고정부에 배치되고 상기 제1구동 마그네트와 대응하는 위치에 배치되는 제1코일; 및상기 고정부에 배치되고 상기 제2구동 마그네트와 대응하는 위치에 배치되는 제2코일을 포함하고,광축방향으로, 상기 제1코일의 중심은 상기 제2코일의 중심보다 전방에 배치되고,상기 제1코일의 일부는 상기 광축방향에 수직인 제1방향으로 상기 제2코일과 오버랩되는 렌즈 구동 장치.
- 제1항에 있어서,상기 제1코일은 상기 제1방향으로 상기 제2코일과 오버랩되지 않는 부분을 포함하는 렌즈 구동 장치.
- 제1항에 있어서,상기 광축방향과 상기 제1방향에 수직인 제2방향으로, 상기 제1코일의 상기 중심은 상기 제2코일의 상기 중심과 대응하는 높이로 배치되는 렌즈 구동 장치.
- 제1항에 있어서,상기 고정부는 하우징과, 상기 하우징에 배치되는 제1렌즈를 포함하고,상기 제1이동부는 상기 하우징 내에 배치되는 제1홀더와, 상기 제1홀더에 배치되는 제2렌즈를 포함하고,상기 제2이동부는 상기 하우징 내에 배치되는 제2홀더와, 상기 제2홀더에 배치되는 제3렌즈를 포함하고,상기 제2렌즈는 상기 제1렌즈와 상기 제3렌즈 사이에 배치되는 렌즈 구동 장치.
- 제4항에 있어서,상기 제1코일은 상기 제2코일과 같은 크기로 형성되고 상기 제2코일보다 상기 제1렌즈에 가깝게 배치되는 렌즈 구동 장치.
- 제1항에 있어서,상기 제1구동 마그네트의 일부는 상기 제1방향으로 상기 제2구동 마그네트와 오버랩되는 렌즈 구동 장치.
- 제4항에 있어서,상기 제1구동 마그네트는 상기 제2구동 마그네트와 같은 크기로 형성되고 상기 제2구동 마그네트보다 상기 제1렌즈에 가깝게 배치되는 렌즈 구동 장치.
- 제1항에 있어서,상기 제1코일의 중공에 배치되고 상기 제1구동 마그네트를 감지하는 제1홀센서와 제2홀센서를 포함하고,상기 제1구동 마그네트는 각각 N극과 S극을 갖는 제1마그네트부와 제2마그네트부와, 상기 제1마그네트부와 상기 제2마그네트부 사이에 배치되는 중립부 또는 공극을 포함하고,상기 광축방향으로, 상기 중립부 또는 공극의 크기는 상기 제1코일의 상기 중공의 크기보다 작고 상기 제1홀센서와 상기 제2홀센서 사이의 거리보다 큰 렌즈 구동 장치.
- 제1항에 있어서,상기 제1구동 마그네트는 각각 N극과 S극을 갖는 제1마그네트부와 제2마그네트부와, 상기 제1마그네트부와 상기 제2마그네트부 사이에 배치되는 중립부 또는 공극을 포함하고,상기 제1코일은 상기 제1마그네트부와 마주보는 제1부분과, 상기 제2마그네트부와 마주보는 제2부분을 포함하고,상기 제1코일의 상기 제1부분은 상기 제1방향으로 상기 제2마그네트부와 오버랩되지 않고 상기 제1코일의 상기 제2부분은 상기 제1방향으로 상기 제1마그네트부와 오버랩되지 않는 렌즈 구동 장치.
- 제1렌즈를 포함하는 고정부;상기 고정부 내에 배치되고 제2렌즈를 포함하는 제1이동부;상기 고정부 내에 배치되고 제3렌즈를 포함하는 제2이동부;상기 제1이동부에 배치되는 제1구동 마그네트;상기 제2이동부에 배치되는 제2구동 마그네트;상기 제1구동 마그네트와 대응하는 위치에 배치되는 제1코일; 및상기 제2구동 마그네트와 대응하는 위치에 배치되는 제2코일을 포함하고,상기 제1구동 마그네트는 상기 제2구동 마그네트보다 상기 제1렌즈에 가깝게 배치되고,상기 제1구동 마그네트의 일부는 광축방향에 수직인 제1방향으로 상기 제2구동 마그네트와 오버랩되는 렌즈 구동 장치.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202180096549.3A CN117136330A (zh) | 2021-04-01 | 2021-11-11 | 透镜驱动装置 |
| EP21935319.0A EP4318117A4 (en) | 2021-04-01 | 2021-11-11 | LENS DRIVE DEVICE |
| JP2023560132A JP2024512120A (ja) | 2021-04-01 | 2021-11-11 | レンズ駆動装置 |
| US18/551,761 US20240302711A1 (en) | 2021-04-01 | 2021-11-11 | Lens driving device |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2021-0042988 | 2021-04-01 | ||
| KR10-2021-0042989 | 2021-04-01 | ||
| KR1020210042988A KR20220136827A (ko) | 2021-04-01 | 2021-04-01 | 렌즈 구동 장치 |
| KR1020210042990A KR20220136829A (ko) | 2021-04-01 | 2021-04-01 | 렌즈 구동 장치 |
| KR1020210042989A KR20220136828A (ko) | 2021-04-01 | 2021-04-01 | 렌즈 구동 장치 |
| KR10-2021-0042990 | 2021-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022211206A1 true WO2022211206A1 (ko) | 2022-10-06 |
Family
ID=83455317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2021/016420 Ceased WO2022211206A1 (ko) | 2021-04-01 | 2021-11-11 | 렌즈 구동 장치 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20240302711A1 (ko) |
| EP (1) | EP4318117A4 (ko) |
| JP (1) | JP2024512120A (ko) |
| TW (1) | TW202307522A (ko) |
| WO (1) | WO2022211206A1 (ko) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116774385A (zh) * | 2022-03-09 | 2023-09-19 | 晋城三赢精密电子有限公司 | 镜头模组及电子设备 |
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- 2021-11-11 JP JP2023560132A patent/JP2024512120A/ja active Pending
- 2021-11-11 WO PCT/KR2021/016420 patent/WO2022211206A1/ko not_active Ceased
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2024512120A (ja) | 2024-03-18 |
| EP4318117A1 (en) | 2024-02-07 |
| TW202307522A (zh) | 2023-02-16 |
| EP4318117A4 (en) | 2025-04-16 |
| US20240302711A1 (en) | 2024-09-12 |
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