KR20210150737A - Camera actuator and camera module comprising the same - Google Patents

Abstract

According to one embodiment of the present invention, a camera actuator comprises: a housing; a first member coupled to the housing; a mover including an optical member; a first magnetic body disposed on the first member; a second magnetic body disposed on the mover; and a tilting guide unit guiding tilting of the mover. The mover includes a holder coupled to the optical member and a second member coupled to the holder. The tilting guide unit is in close contact with the first member and the holder by a repulsive force of the first magnetic body and the second magnetic body.

Description

A camera actuator and a camera module including the same

The present invention relates to a camera actuator and a camera module including the same.

A camera is a device that takes a picture or video of a subject, and is mounted on a portable device, a drone, a vehicle, or the like. The camera module has an image stabilization (IS) function that corrects or prevents image shake caused by user movement to improve image quality, and automatically adjusts the distance between the image sensor and the lens to align the focal length of the lens. It may have a zooming function that increases or decreases the magnification of a distant subject through an auto-focusing (AF) function and a zoom lens.

On the other hand, the resolution of the image sensor increases as the pixel becomes higher and the size of the pixel becomes smaller. As the pixel becomes smaller, the amount of light received for the same time decreases. Therefore, the higher the pixel camera, the more severe the image shake caused by hand shake that occurs when the shutter speed is slowed in a dark environment. As a representative image stabilization (IS) technology, there is an optical image stabilizer (OIS) technology that corrects motion by changing the path of light.

According to the general OIS technology, the movement of the camera is detected through a gyrosensor, etc., and the lens is tilted or moved based on the detected movement, or the camera module including the lens and the image sensor can be tilted or moved. . When a lens or a camera module including a lens and an image sensor is tilted or moved for OIS, it is necessary to additionally secure a space for tilting or moving around the lens or camera module.

Meanwhile, an actuator for OIS may be disposed around the lens. In this case, the actuator for OIS may include two axes perpendicular to the optical axis Z, that is, an actuator in charge of tilting the X-axis and an actuator in charge of tilting the Y-axis.

However, according to the needs of the ultra-slim and ultra-small camera module, there is a large space constraint for arranging the actuator for OIS, and there is sufficient space for tilting or moving the lens or the camera module itself including the lens and image sensor for OIS. It can be difficult to guarantee. In addition, as the high-pixel camera becomes, it is desirable to increase the size of the lens in order to increase the amount of light received.

In addition, when the zooming function, AF function, and OIS function are all included in the camera module, there is a problem in that the magnet for OIS and the magnet for AF or zoom are disposed close to each other to cause magnetic field interference.

The technical problem to be solved by the present invention is to provide a camera actuator applicable to an ultra-slim, ultra-miniature and high-resolution camera.

A camera actuator according to an embodiment of the present invention includes a housing; a first member coupled to the housing; a mover including an optical member; a first magnetic body disposed on the first member; a second magnetic body disposed on the mover; and a tilting guide part for guiding the tilting of the mover, wherein the mover includes a holder coupled to the optical member and a second member coupled to the holder, and the tilting guide part includes the first magnetic body and the second member. 2 The first member and the holder are closely adhered to each other by the repulsive force of the magnetic body.

The first member may include a first through hole and a second through hole spaced apart from the first through hole, and the second member may include a member base; a first extension portion positioned at an edge of the member base portion and extending toward the holder; and a second extension spaced apart from the first extension and extending toward the mover.

The first extension may pass through the first through hole, and the second extension may pass through the second through hole.

The first member may include an upper member disposed above the first through hole and the second through hole; a lower member disposed under the first through hole and the second through hole; a connecting member connecting the upper member and the lower member; a first protrusion extending from one side of the upper member toward the holder; and a second protrusion extending from the other side of the upper member toward the holder, wherein the first extension and the second extension may be disposed between the upper member and the lower member.

A camera actuator according to an embodiment includes a housing; a first member coupled to the housing; a mover including a holder; a first magnetic body disposed on the first member; a second magnetic body disposed on the mover; and a tilting guide part disposed between the holder and the first member, wherein the mover includes a second member coupled to the holder, wherein a portion of the first member includes the second member and the holder The first surface of the first magnetic material and the second surface of the second magnetic material facing the first surface may have the same polarity.

A center of the second magnetic body and a center of the second member may be disposed at different positions from each other.

The center of the second magnetic body may be located above or below the center of the second member.

An area of the second magnetic material may be greater than an area of the first magnetic material, and the first magnetic material may be positioned within a virtual straight line extending both ends of the second magnetic material in an optical axis direction.

A camera actuator according to an embodiment includes a housing; a first member coupled to the housing; a first magnetic body disposed on the first member; a second magnetic body corresponding to the first magnetic body; a second member on which the second magnetic body is disposed; a holder coupled to the second member; and a tilting guide part disposed between the holder and the first member, wherein a portion of the first member is disposed between the second member and the holder.

The first magnetic material and the second magnetic material may face each other with the same polarity.

According to an embodiment of the present invention, it is possible to provide a camera actuator applicable to an ultra-slim, ultra-small and high-resolution camera. In particular, the actuator for OIS can be efficiently arranged without increasing the overall size of the camera module.

According to an embodiment of the present invention, tilting in the X-axis direction and tilting in the Y-axis direction do not cause magnetic field interference with each other, and tilting in the X-axis direction and tilting in the Y-axis direction can be implemented with a stable structure, and for AF or Even with the actuator for zooming, it does not cause magnetic field interference, so precise OIS function can be realized.

According to an embodiment of the present invention, it is possible to secure a sufficient amount of light by eliminating the size limitation of the lens, and it is possible to implement OIS with low power consumption.

1 is a perspective view of a camera module according to an embodiment;
2 is an exploded perspective view of a camera module according to an embodiment;
3 is a cross-sectional view taken along line AA' in FIG. 1;
4 is a perspective view of a first camera actuator according to an embodiment;
5 is an exploded perspective view of a first camera actuator according to an embodiment;
6A is a perspective view of a first housing of a first camera actuator according to an embodiment;
Figure 6b is a perspective view in a different direction from Figure 6a,
6C is a front view of a first housing of a first camera actuator according to an embodiment;
7 is a perspective view of an optical member of a first camera actuator according to an embodiment;
8A is a perspective view of a holder of a first camera actuator according to an embodiment;
8B is a bottom view of the holder of the first camera actuator according to the embodiment;
8C is a front view of the holder of the first camera actuator according to the embodiment;
8D is a rear view of a second member of the first camera actuator according to the embodiment;
8E is a bottom view of a second member of the first camera actuator according to the embodiment;
9A is a perspective view of a tilting guide part of a first camera actuator according to an embodiment;
9B is a perspective view in a different direction from FIG. 9A;
9C is a cross-sectional view taken along FF' in FIG. 9A;
10 is a view illustrating a first driving unit of a first camera actuator according to an embodiment;
11A is a perspective view of a first camera actuator according to an embodiment;
11B is a cross-sectional view taken from PP' in FIG. 11A;
11c is a cross-sectional view taken along QQ' in FIG. 11a;
12A is a perspective view of a first camera actuator according to an embodiment;
12B is a cross-sectional view taken along SS' in FIG. 12A;
12C is an exemplary diagram of movement of the first camera actuator shown in FIG. 12B .
13A is a cross-sectional view taken along RR' in FIG. 12A;
13B is an exemplary view of the movement of the first camera actuator shown in FIG. 13A;
14 is a view for explaining the assembly sequence of the first camera actuator according to the embodiment;
15 is a perspective view of a second camera actuator according to an embodiment;
16 is an exploded perspective view of a second camera actuator according to the embodiment;
17 is a cross-sectional view taken along DD' in FIG. 15;
18 is a cross-sectional view taken along EE' in FIG. 15;
19 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied;
20 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.

Since the present invention may have various changes and may have various embodiments, specific embodiments will be illustrated and described in the drawings. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

Terms including an ordinal number such as second, first, etc. may be used to describe various elements, but the elements are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as the first component, and similarly, the first component may also be referred to as the second component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

When an element is referred to as being “connected” or “connected” to another element, it is understood that it may be directly connected or connected to the other element, but other elements may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, the embodiment will be described in detail with reference to the accompanying drawings, but the same or corresponding components are given the same reference numerals regardless of reference numerals, and overlapping descriptions thereof will be omitted.

1 is a perspective view of a camera module according to an embodiment, FIG. 2 is an exploded perspective view of a camera module according to an embodiment, and FIG. 3 is a cross-sectional view taken along line AA′ in FIG. 1 .

1 and 2 , the camera module 1000 according to the embodiment may include a cover CV, a first camera actuator 1100 , a second camera actuator 1200 , and a circuit board 1300 . . Here, the first camera actuator 1100 may be used as a first actuator, and the second camera actuator 1200 may be used as a second actuator.

The cover CV may cover the first camera actuator 1100 and the second camera actuator 1200 . The coupling force between the first camera actuator 1100 and the second camera actuator 1200 may be improved by the cover CV.

Furthermore, the cover CV may be made of a material that blocks electromagnetic waves. Accordingly, the first camera actuator 1100 and the second camera actuator 1200 in the cover CV can be easily protected.

In addition, the first camera actuator 1100 may be an optical image stabilizer (OIS) actuator. For example, the first camera actuator 1100 may move the optical member in a direction perpendicular to the optical axis.

The first camera actuator 1100 may include fixed focal length les disposed on a predetermined barrel (not shown). Fixed focal length lenses may also be referred to as “single focal length lenses” or “single focal length lenses”.

The first camera actuator 1100 may change the path of the light. In an embodiment, the first camera actuator 1100 may change the optical path vertically through an optical member (eg, a prism or a mirror) therein. With this configuration, even if the thickness of the mobile terminal is reduced, a lens configuration larger than the thickness of the mobile terminal is disposed in the mobile terminal through a change in the optical path, so that magnification, auto-focusing (AF) and OIS functions can be performed.

However, the present invention is not limited thereto, and the first camera actuator 1100 may change the optical path vertically or at a predetermined angle a plurality of times.

The second camera actuator 1200 may be disposed at a rear end of the first camera actuator 1100 . The second camera actuator 1200 may be coupled to the first camera actuator 1100 . And the mutual coupling may be made by various methods.

Also, the second camera actuator 1200 may be a zoom actuator or an auto focus (AF) actuator. For example, the second camera actuator 1200 may support one or a plurality of lenses and may perform an auto-focusing function or a zoom function by moving the lenses according to a control signal of a predetermined control unit.

and one or a plurality of lenses are moved independently or individually along the optical axis direction to

The circuit board 1300 may be disposed behind the second camera actuator 1200 . The circuit board 1300 may be electrically connected to the second camera actuator 1200 and the first camera actuator 1100 . Also, there may be a plurality of circuit boards 1300 .

The camera module according to the embodiment may be formed of a single or a plurality of camera modules. For example, the plurality of camera modules may include a first camera module and a second camera module.

And the first camera module may include a single or a plurality of actuators. For example, the first camera module may include a first camera actuator 1100 and a second camera actuator 1200 .

In addition, the second camera module is disposed in a predetermined housing (not shown) and may include an actuator (not shown) capable of driving the lens unit. The actuator may be a voice coil motor, a micro actuator, a silicon actuator, etc., and may be applied in various ways, such as an electrostatic method, a thermal method, a bimorph method, an electrostatic force method, and the like, but is not limited thereto. Also, in this specification, the camera actuator may be referred to as an actuator or the like. In addition, a camera module including a plurality of camera modules may be mounted in various electronic devices such as a mobile terminal.

Referring to FIG. 3 , the camera module according to the embodiment may include a first camera actuator 1100 performing an OIS function and a second camera actuator 1200 performing a zooming function and AF function.

Light may be incident into the camera module or the first camera actuator through an opening area located on the upper surface of the first camera actuator 1100 . That is, the light may be incident into the interior of the first camera actuator 1100 along the optical axis direction (eg, the X-axis direction), and the optical path may be changed in the vertical direction (eg, the Z-axis direction) through the optical member. In addition, the light may pass through the second camera actuator 1200 and be incident to the image sensor IS located at one end of the second camera actuator 1200 (PATH).

In this specification, the bottom means one side in the first direction. In addition, the first direction is the X-axis direction in the drawing, and may be used interchangeably with the second axis direction. The second direction is the Y-axis direction in the drawing, and may be used interchangeably with the first axis direction. The second direction is a direction perpendicular to the first direction. Also, the third direction is the Z-axis direction in the drawing, and may be used interchangeably with the third axis direction. And the third direction is a direction perpendicular to both the first direction and the second direction. Here, the third direction (Z-axis direction) corresponds to the direction of the optical axis, and the first direction (X-axis direction) and the second direction (Y-axis direction) are directions perpendicular to the optical axis and are to be tilted by the second camera actuator. can In addition, in the description of the first camera actuator 1100 hereinafter, the optical axis direction is the third direction (Z axis direction) and will be described below based on this.

In addition, in this specification, the inner side may be a direction from the cover (CV) toward the first camera actuator, and the outer side may be the opposite direction of the inner side. That is, the first camera actuator and the second camera actuator may be located inside the cover CV, and the cover CV may be located outside the first camera actuator or the second camera actuator.

And with this configuration, the camera module according to the embodiment may improve the spatial limitation of the first camera actuator and the second camera actuator by changing the path of light. That is, the camera module according to the embodiment may extend the optical path while minimizing the thickness of the camera module in response to the change in the path of the light. Furthermore, it should be understood that the second camera actuator may provide a high range of magnification by controlling a focus or the like in the extended optical path.

In addition, the camera module according to the embodiment can implement OIS through control of the optical path through the first camera actuator, thereby minimizing the occurrence of a decent or tilt phenomenon, and providing the best optical characteristics. can pay

Furthermore, the second camera actuator 1200 may include an optical system and a lens driver. For example, in the second camera actuator 1200, at least one of a first lens assembly, a second lens assembly, a third lens assembly, and a guide pin may be disposed.

Also. The second camera actuator 1200 may include a coil and a magnet to perform a high-magnification zooming function.

For example, the first lens assembly and the second lens assembly may be a moving lens that moves through a coil, a magnet, and a guide pin, and the third lens assembly may be a fixed lens, but is not limited thereto. For example, the third lens assembly may function as a concentrator to image light at a specific position, and the first lens assembly may re-image an image formed by the third lens assembly, which is a concentrator, to another location. It can perform the function of a variable (variator). Meanwhile, in the first lens assembly, the magnification change may be large because the distance to the subject or the image distance changes a lot, and the first lens assembly as the variable magnification may play an important role in changing the focal length or magnification of the optical system. On the other hand, the image formed in the first lens assembly, which is a variable changer, may be slightly different depending on the location. Accordingly, the second lens assembly may perform a position compensation function for the image formed by the variable magnifier. For example, the second lens assembly may perform a compensator function that accurately forms an image formed by the first lens assembly, which is a variable changer, at an actual image sensor position. For example, the first lens assembly and the second lens assembly may be driven by electromagnetic force due to an interaction between a coil and a magnet. The above may be applied to a lens assembly to be described later. Also, the first to third lens assemblies may move along the optical axis direction, that is, the third direction. In addition, the first to third lens assemblies may move in the third direction independently or depending on each other.

On the other hand, when the actuator for OIS and the actuator for AF or zoom are disposed according to an embodiment of the present invention, magnetic field interference with the magnet for AF or zoom can be prevented when OIS is driven. Since the first driving magnet of the first camera actuator 1100 is disposed separately from the second camera actuator 1200, magnetic field interference between the first camera actuator 1100 and the second camera actuator 1200 can be prevented. In this specification, OIS may be used interchangeably with terms such as hand shake correction, optical image stabilization, optical image correction, and image stabilization.

4 is a perspective view of a first camera actuator according to an embodiment, and FIG. 5 is an exploded perspective view of the first camera actuator according to an embodiment.

4 and 5 , the first camera actuator 1100 according to the embodiment includes a first housing 1120 , a mover 1130 , a rotation unit 1140 , a first driving unit 1150 , and a first member 1126 . ) and a second member 1131a.

The mover 1130 may include a holder 1131 and an optical member 1132 seated on the holder 1131 . In addition, the rotating part 1140 may include the tilting guide part 1141 and the second magnetic body 1142 and the first magnetic body 1143 having different polarities to press the tilting guide part 1141 . In addition, the first driving unit 1150 includes a driving magnet 1151 , a driving coil 1152 , a Hall sensor unit 1153 , a first substrate unit 1154 , and a yoke unit 1155 .

First, the first camera actuator 1100 may include a shield can (not shown). The shield can (not shown) may be positioned at the outermost side of the first camera actuator 1100 to surround the rotating part 1140 and the first driving part 1150 to be described later.

Such a shield can (not shown) may block or reduce electromagnetic waves generated from the outside. That is, the shield can (not shown) may reduce the occurrence of a malfunction in the rotating unit 1140 or the first driving unit 1150 .

The first housing 1120 may be located inside a shield can (not shown). When there is no shield can, the first housing 1120 may be located at the outermost side of the first camera actuator.

Also, the first housing 1120 may be located inside the first substrate unit 1154 to be described later. The first housing 1120 may be coupled to or fitted to a shield can (not shown).

The first housing 1120 may include a first housing side 1121 , a second housing side 1122 , a third housing side 1123 , and a fourth housing side 1124 . A detailed description thereof will be given later.

The first member 1126 may be disposed in the first housing 1120 . The first member 1126 may be disposed between the second member 1131a and the housing. The first member 1126 may be disposed or included within the housing. This will be described later.

The mover 1130 includes a holder 1131 and an optical member 1132 seated on the holder 1131 .

The holder 1131 may be seated in the receiving part 1125 of the first housing 1120 . The holder 1131 has a first holder outer surface to a fourth holder outer surface corresponding to the first housing side 1121 , the second housing side 1122 , the third housing side 1123 , and the first member 1126 , respectively. may include For example, the first holder outer surface to the fourth holder outer surface may correspond to inner surfaces of the first housing side 1121 , the second housing side 1122 , the third housing side 1123 , and the first member 1126 , respectively. or can be faced with.

Also, the holder 1131 may include a second member 1131a disposed in the fourth seating groove. A detailed description thereof will be given later.

The optical member 1132 may be seated on the holder 1131 . To this end, the holder 1131 may have a seating surface, and the seating surface may be formed by a receiving groove. In an embodiment, the optical member 1132 may be formed of a mirror or a prism. Hereinafter, a prism is shown as a reference, but as in the above-described embodiment, a plurality of lenses may be used. Alternatively, the optical member 1132 may include a plurality of lenses and prisms or mirrors. In addition, the optical member 1132 may include a reflector disposed therein. However, the present invention is not limited thereto.

Also, the optical member 1132 may reflect light reflected from the outside (eg, an object) into the camera module. In other words, the optical member 1132 may improve the spatial limit of the first camera actuator and the second camera actuator by changing the path of the reflected light. As such, it should be understood that the camera module may extend the optical path while minimizing thickness to provide a high range of magnification.

Additionally, the second member 1131a may be coupled to the holder 1131 . The second member 1131a may be disposed outside the holder 1131 and inside the housing. In addition, the second member 1131a may be seated in an additional groove located in an area other than the fourth seating groove on the outer surface of the fourth holder in the holder 1131 . Through this, the second member 1131a may be coupled to the holder 1131 , and at least a portion of the first member 1126 may be positioned between the second member 1131a and the holder 1131 . For example, at least a portion of the first member 1126 may pass through a space formed between the second member 1131a and the holder 1131 .

In addition, the second member 1231a may have a structure separated from the holder 1131 . With this configuration, as will be described later, the assembly of the first camera actuator can be easily performed. Alternatively, the second member 1131a may be integrally formed with the holder 1131 , but a separate structure will be described below.

The rotating part 1140 includes a tilting guide part 1141 and a second magnetic body 1142 and a first magnetic body 1143 having different polarities to press the tilting guide part 1141 .

The tilting guide unit 1141 may be coupled to the above-described mover 1130 and the first housing 1120 . Specifically, the tilting guide unit 1141 may be disposed between the holder 1131 and the first member 1126 . Accordingly, the tilting guide unit 1141 may be coupled to the mover 1130 and the first housing 1120 of the holder 1131 . However, unlike the above description, in the present embodiment, the tilting guide unit 1141 may be disposed between the first member 1126 and the holder 1131 . Specifically, the tilting guide part 1141 may be positioned between the first member 1126 and the fourth seating groove of the holder 1131 .

In the third direction (Z-axis direction), the second member 1131a , the first member 1126 , the tilting guide part 1141 , and the holder 1131 may be disposed in this order. In addition, the second magnetic body 1142 and the first magnetic body 1143 may be seated in the first groove gr1 formed in the second member 1131a and the second groove gr2 formed in the first member 1126 , respectively. have. In the present embodiment, the first groove gr1 and the second groove gr2 may have different positions from the first and second grooves described in the other embodiments described above. However, the first groove gr1 is located in the second member 1131a and moves integrally with the holder, and the second groove gr2 is located on the first member 1126 corresponding to the first groove gr1 . to be coupled to the first housing 1120 . Accordingly, the present terms will be used interchangeably.

Also, the tilting guide unit 1141 may be disposed adjacent to the optical axis. Accordingly, the actuator according to the embodiment can easily change the optical path according to the first and second axis tilt to be described later.

The tilting guide part 1141 may include a first protrusion spaced apart in a first direction (X-axis direction) and a second protrusion spaced apart in a second direction (Y-axis direction). Also, the first protrusion and the second protrusion may protrude in opposite directions. A detailed description thereof will be given later.

Also, as described above, the second magnetic body 1142 may be located in the second member 1131a. Also, the first magnetic body 1143 may be located in the first member 1126 .

The second magnetic body 1142 and the first magnetic body 1143 may have the same polarity. For example, the second magnetic body 1142 may be a magnet having an N pole, and the first magnetic body 1143 may be a magnet having an N pole. Alternatively, the second magnetic body 1142 may be a magnet having an S pole, and the first magnetic body 1143 may be a magnet having an S pole.

For example, the first pole surface of the first magnetic material 1143 and the second pole surface of the second magnetic material 1142 facing the first pole surface may have the same polarity.

The second magnetic body 1142 and the first magnetic body 1143 may generate a repulsive force between each other due to the above-described polarity. With this configuration, the above-described repulsive force is coupled to the second member 1131a or the holder 1131 and the first magnetic body 1143 coupled to the second magnetic body 1142. The first member 1126 or the first housing ( 1120) can be added. In this case, the repulsive force applied to the second member 1131a may be transmitted to the holder 1131 coupled to the second member 1131a. Accordingly, the tilting guide part 1141 disposed between the second member 1131a and the first member 1126 may be pressed by the repulsive force. That is, the repulsive force may maintain the tilting guide unit 1141 positioned between the holder 1131 and the first housing 1120 (or the first member 1126 ). With this configuration, the position between the mover 1130 and the first housing 1120 may be maintained even during the X-axis tilt or the Y-axis tilt. In addition, the tilting guide part may be in close contact with the first member 1126 and the holder 1131 by a repulsive force between the first magnetic body 1143 and the second magnetic body 1142 .

The first driving unit 1150 includes a driving magnet 1151 , a driving coil 1152 , a Hall sensor unit 1153 , a first substrate unit 1154 , and a yoke unit 1155 . Details on this will be described later.

6A is a perspective view of a first housing of the first camera actuator according to the embodiment, FIG. 6B is a perspective view different from that of FIG. 6A, and FIG. 6C is a front view of the first housing of the first camera actuator according to the embodiment.

6A to 6C , the first housing 1120 according to the embodiment may include a first housing side portion 1121 to a fourth housing side portion 1124 . In addition, the first member 1126 may be coupled to the first housing 1120 to be formed of a different body. Accordingly, the first member 1126 may be included in the first housing 1120 . That is, the first housing 1120 may be integrally formed by being coupled to the first member 1126 . Alternatively, the first housing 1120 may include a first member 1126 .

The first housing side 1121 and the second housing side 1122 may be disposed to face each other. Also, the third housing side portion 1123 and the fourth housing side portion 1124 may be disposed to face each other.

And the third housing side 1123 and the fourth housing side 1124 may be disposed between the first housing side 1121 and the second housing side 1122 .

The third housing side 1123 and the fourth housing side 1124 may abut the first housing side 1121 , the second housing side 1122 , and the fourth housing side 1124 . In addition, the third housing side 1123 may be a bottom surface of the first housing 1120 . And the fourth housing side 1124 may be an upper surface of the first housing 1120 . In addition, the description of the direction may be applied in the same manner as described above.

In addition, the first housing side 1121 may include a first housing hole 1121a. A first coil to be described later may be positioned in the first housing hole 1121a.

Also, the second housing side 1122 may include a second housing hole 1122a. In addition, a second coil 1152b to be described later may be positioned in the second housing hole 1122a.

In addition, the first housing side 1121 and the second housing side 1122 may be side surfaces of the first housing 1120 .

The first coil and the second coil may be coupled to the first substrate unit. In an embodiment, the first coil and the second coil may be electrically connected to the first substrate part so that a current may flow. This current is a component of electromagnetic force that allows the second camera actuator to tilt with respect to the X-axis.

Also, the third housing side portion 1123 may include a third housing hole 1123a.

A third coil to be described later may be positioned in the third housing hole 1123a. Also, the third coil 1152c may be electrically connected to the first substrate unit in contact with the first housing 1120 and may be coupled to each other. Accordingly, the third coil may be electrically connected to the first substrate unit to receive current from the first substrate unit. This current is a component of electromagnetic force that allows the second camera actuator to tilt with respect to the Y-axis.

A first member 1126 may be seated between the first housing side portion 1121 to the fourth housing side portion 1124 . Accordingly, the first member 1126 may be positioned on the third housing side portion 1123 . For example, the first member 1126 may be located on one side. Based on the third direction, the first member 1126 and the holder may be sequentially positioned.

The fourth housing side 1124 is disposed between the first housing side 1121 , the second housing side 1122 , the first housing side 1121 , the second housing side 1122 , and the third housing side 1123 . ) can be encountered.

Also, the fourth housing side 1124 may include a fourth housing hole 1124a. The fourth housing hole 1124a may be located above the optical member. Accordingly, light may pass through the fourth housing hole 1124a and be incident on the optical member.

Also, the first housing 1120 may include a receiving portion 1125 formed by the first housing side portion 1121 to the fourth housing side portion 1124 . A first member 1126 , a second member 1131a , and a mover 1130 may be positioned in the receiving part 1125 as components.

In addition, the first housing 1120 may further include a fifth housing side facing the first member 1126 . and a fifth housing side is disposed between the first housing side 1121 and the second housing side 1122 , the first housing side 1121 , the second housing side 1122 and the third housing side 1123 and can be reached In addition, the fifth housing side may include an opening region to provide a path through which light reflected from the optical member 1132 travels. In addition, the fifth housing side may include protrusions or grooves, etc., to provide easy engagement with other adjacent camera actuators. With this configuration, it is possible to minimize the change of the optical path by suppressing movement of the opening due to separation or the like by improving the coupling force between the side of the fifth housing where the opening providing the optical path is formed and other components while providing the optical path. .

Also, as described above, the first member 1126 may be coupled to the first housing 1120 to be included in the first housing 1120 . That is, the first housing 1120 may include the first member 1126 .

In addition, the first member 1126 may be disposed in the first housing 1120 . Alternatively, the first member 1126 may be located in the first housing 1120 .

In addition, the first member 1126 may be coupled to the first housing 1120 . In an embodiment, the first member 1126 may be positioned between the first housing side 1121 and the second housing side 1122 . Also, the first member 1126 may be positioned between the third housing side 1123 and the fourth housing side 1124 .

In addition, the first member 1126 is positioned on the third housing side portion 1123 and may be joined to the first housing side to the third housing side portion.

In addition, a first stopper 1121b may be positioned on the inner surface of the first housing side portion 1121 . In addition, a second stopper 1122b may be positioned on the inner surface of the second housing side 1122 .

The first stopper 1121b and the second stopper 1122b may be positioned symmetrically with respect to the first direction (X-axis direction). The first stopper 1121b and the second stopper 1122b may extend in a first direction (X-axis direction). With this configuration, even when the first member 1126 moves into the first housing 1120 , the position may be maintained by the first stopper 1121b and the second stopper 1122b. In other words, the first stopper 1121b and the second stopper 1122b may maintain the first member 1126 positioned on one side of the first housing 1120 .

Furthermore, the first stopper 1121b and the second stopper 1122b fix the position of the first member 1126 to fix the position of the tilting guide part between the first member 1126 and the mover to cause errors such as vibration. can be removed. Accordingly, in the first camera actuator according to the embodiment, the X-axis tilt and the Y-axis tilt may be accurately performed.

In addition, the separation distance L2 in the second direction (Y-axis direction) between the first stopper 1121b and the second stopper 1122b is the maximum length in the second direction (Y-axis direction) of the first member 1126 ( It may be smaller than L1). Accordingly, the first member 1126 may be assembled or inserted laterally with respect to the first housing 1120 to be coupled to the first housing 1120 .

In addition, the first member 1126 includes a second protrusion groove in which the second protrusion of the tilting guide part is seated. The second protrusion groove PH2 may be located on the inner surface 1126s1 of the first member 1126 . Accordingly, in the first member 1126 , the protrusion (eg, the second protrusion) of the tilting guide is disposed adjacent to the prism in the fourth seating groove, so that the protrusion, which is the reference axis of tilt, is close to the center of gravity of the mover 1130 . to be placed Accordingly, when the holder tilts, the moment of moving the mover 1130 for tilting can be minimized. Accordingly, since current consumption for driving the coil is also minimized, power consumption of the camera actuator may be reduced.

Also, the first member 1126 may include through holes 1126a and 1126b. A plurality of through-holes may be formed of a first through-hole 1126a and a second through-hole 1126b.

The first and second extension portions of the second member to be described later may pass through the first through hole 1126a and the second through hole 1126b, respectively. Through this, the second member and the first member may be coupled. In other words, the first housing and the mover may be coupled to each other.

A second protrusion groove PH2 may be positioned between the first through hole 1126a and the second through hole 1126b. Due to this configuration, the coupling force between the tilting guide unit 1141 and the first member 1126 is improved, so that a decrease in tilt accuracy caused by the tilting guide unit 1141 moving within the first housing can be blocked.

In addition, a second groove gr2 may be positioned on the outer surface 1126s2 of the first member 1126 . A first magnetic body may be seated in the second groove gr2 . In addition, the outer surface 1126s2 of the first member 1126 may face the inner surface of the second member or the member base portion. Furthermore, the second magnetic body seated on the second member and the first magnetic body of the first member 1126 may face each other and generate the above-described repulsive force. Accordingly, since the first member 1126 presses the tilting guide part inward or the holder by the repulsive force, the mover may be spaced apart from the third housing side by a predetermined distance in the first housing even if there is no current injection into the coil. In other words, the coupling force between the mover and the housing and the tilting guide unit may be maintained.

In addition, when the first member 1126 is integrally formed with the first housing 1120 , the coupling force between the first member 1126 and the first housing 1120 may be improved, so that reliability of the camera actuator may be improved. In addition, when the first member 1126 and the first housing 1120 are separated, the easiness of assembling and manufacturing may be improved.

And in an embodiment, the first member 1126 may include the first through-hole 1126a and the second through-hole 1126b as described above. In addition, the first through-hole 1126a and the second through-hole 1126b may be disposed side by side in the second direction (Y-axis direction) to overlap each other.

And the first member 1126 is the upper member UA positioned above the first through-hole 1126a and the second through-hole 1126b, and the lower portion of the first through-hole 1126a and the second through-hole 1126b. It may include a lower member (BA) located in the. Accordingly, the first through-hole 1126a and the second through-hole 1126b may be located in the middle of the first member 1126 . That is, the first member 1126 may include the connecting member MA located on the side of the first through hole 1126a and the second through hole 1126b. That is, the upper member UA and the lower member BA may be connected to each other through the connecting member MA. In addition, a plurality of lower members BA may be provided to form the first and second through-holes, and may be disposed to be spaced apart from each other in the second direction (Y-axis direction).

Accordingly, the rigidity of the first member 1126 may be improved by having the upper member UA. For example, compared to the case in which the upper member UA is not present, the rigidity of the first member 1126 may be increased. For example, in the present embodiment, the unit may be N/㎛. Accordingly, the reliability of the first camera actuator according to the embodiment may be improved.

In addition, a first coupling groove 1126k may be positioned on the outer surface 1126s2 of the first member 1126 . The first coupling groove 1126k may be located at an edge of the outer surface 1126s2 of the first member 1126 . In particular, the first coupling groove 1126k may be located at an end (eg, left and right sides) of the outer surface 1126s2 of the first member 1126 to be adjacent to the first housing side portion 1121 .

The first coupling groove 1126k may be positioned to correspond to the second coupling grooves 1121m and 1122m of the first housing side portion 1121 and the second housing side portion 1122 . In an embodiment, the first coupling groove 1126k may be positioned to face the second coupling grooves 1121m and 1122m of the first housing side portion 1121 and the second housing side portion 1122 . The second coupling grooves 1121m and 1122m may be adjacent to the outer surface 1126s2 of the above-described first member 1126 and located on the same side surface.

In an embodiment, the first coupling groove 1126k and the second coupling grooves 1121m and 1122m may be plural, and the plurality of first coupling grooves 1126k and the second coupling grooves 1121m and 1122m are in the first direction. Alternatively, it may be positioned symmetrically in the second direction.

In addition, a coupling member may be applied to the first coupling groove 1126k and the second coupling groove 1121m and 1122m. That is, the bonding member may be applied between the first housing side (or the second housing side) and the first member 1126 to improve the bonding force between the housing 1120 and the first member 1126 . Such a bonding member may include an epoxy or the like, but is not limited to these materials.

Also, the first member 1126 may further include a first protrusion and a second protrusion. The first protrusion may contact the first housing side, and the second protrusion may contact the second housing side. The first protrusion may extend in the third direction (Z-axis direction) from one end of the outer surface 1126s2 of the first member. The second protrusion may extend in the third direction (Z-axis direction) from the other end of the outer surface 1126s2 of the first member. That is, the first protrusion and the second protrusion may extend toward the holder.

The position of the first protrusion may be maintained by the first stopper 1121b, and the position of the second protrusion may be maintained by the second stopper 1122b. Accordingly, reliability of the camera actuator according to the embodiment may be improved.

7 is a perspective view of an optical member of a first camera actuator according to an embodiment.

The optical member 1132 may be seated on the holder. The optical member 1132 may be a right-angle prism as a reflection unit, but is not limited thereto.

In an embodiment, the optical member 1132 may have a protrusion (not shown) on a portion of the outer surface. The optical member 1132 may be easily coupled to the holder through a protrusion (not shown). In addition, since the holder has a groove or a protrusion, it may be coupled to the optical member 1132 .

In addition, the optical member 1132 may have a bottom surface 1132b mounted on a seating surface of the holder. Accordingly, the bottom surface 1132b of the optical member 1132 may correspond to the seating surface of the holder. In an embodiment, the bottom surface 1132b may be formed of an inclined surface identical to the seating of the holder. Accordingly, it is possible to prevent the optical member 1132 from being separated from the holder according to the movement of the prism and the movement of the holder.

In addition, a groove is formed on the bottom surface 1132b of the optical member 1132 and a bonding member is applied, so that the optical member 1132 can be coupled to the holder. Alternatively, the holder may be coupled to the optical member 1132 by applying a bonding member to the groove or protrusion of the holder.

Also, as described above, the optical member 1132 may have a structure capable of reflecting light reflected from the outside (eg, an object) into the camera module. As in the embodiment, the optical member 1132 may be formed of a single mirror. In addition, the optical member 1132 may improve the spatial limitation of the first camera actuator and the second camera actuator by changing the path of the reflected light. As such, it should be understood that the camera module may extend the optical path while minimizing thickness to provide a high range of magnification. In addition, it should be understood that the camera module including the camera actuator according to the embodiment may provide a high range of magnification by extending the optical path while minimizing the thickness.

8A is a perspective view of the holder of the first camera actuator according to the embodiment, FIG. 8B is a bottom view of the holder of the first camera actuator according to the embodiment, and FIG. 8C is a front view of the holder of the first camera actuator according to the embodiment 8D is a rear view of the second member of the first camera actuator according to the embodiment, and FIG. 8E is a bottom view of the second member of the first camera actuator according to the embodiment.

8A to 8E , the holder 1131 may include a seating surface 1131k on which the optical member 1132 is mounted. The seating surface 1131k may be an inclined surface. Also, the holder 1131 may include a chin on the seating surface 1131k, and in the holder 1131 , the chin may be coupled to a protrusion (not shown) of the optical member 1132 .

The holder 1131 may include a plurality of outer surfaces. For example, the holder 1131 may include a first holder outer surface 1131S1 , a second holder outer surface 1131S2 , a third holder outer surface 1131S3 , and a fourth holder outer surface 1131S4 .

The first holder outer surface 1131S1 may be positioned to face the second holder outer surface 1131S2 . That is, the first holder outer surface 1131S1 may be symmetrically disposed with respect to the second holder outer surface 1131S2 and the first direction (X-axis direction).

The first holder outer surface 1131S1 may be positioned to correspond to the side of the first housing. That is, the first holder outer surface 1131S1 may be positioned to face the side of the first housing. In addition, the second holder outer surface 1131S2 may be positioned to correspond to the second housing side. That is, the second holder outer surface 1131S2 may be positioned to face the second housing side.

In addition, the first holder outer surface 1131S1 may include a first seating groove 1131S1a. In addition, the second holder outer surface 1131S2 may include a second seating groove 1131S2a. The first seating groove 1131S1a and the second seating groove 1131S2a may be symmetrically disposed with respect to the first direction (X-axis direction).

Also, the first seating groove 1131S1a and the second seating groove 1131S2a may be disposed to overlap in the second direction (Y-axis direction). In addition, a first magnet 1151a may be disposed in the first seating groove 1131S1a, and a second magnet 1151b may be disposed in the second seating groove 1131S2a. The first magnet 1151a and the second magnet 1151b may also be disposed symmetrically with respect to the first direction (X-axis direction). In this specification, it should be understood that the first to third magnets may be coupled to the housing through a yoke or a bonding member.

As described above, due to the positions of the first and second seating grooves and the first and second magnets, the electromagnetic force induced by each magnet is coaxial to the first holder outer surface S1231S1 and the second holder outer surface 1131S2. may be provided. For example, the region (eg, the portion having the strongest electromagnetic force) applied on the first holder outer surface S1231S1 and the region applied on the second holder outer surface S1231S1 (eg, the portion having the strongest electromagnetic force) are It may be located on an axis parallel to the second direction (Y-axis direction). Thereby, the X-axis tilting can be made accurately.

A first magnet 1151a may be disposed in the first seating groove 1131S1a, and a second magnet 1151b may be disposed in the second seating groove 1131S2a.

The third holder outer surface 1131S3 is in contact with the first holder outer surface 1131S1 and the second holder outer surface 1131S2, and from one side of the first holder outer surface 1131S1 and the second holder outer surface 1131S2 It may be an outer surface extending in two directions (Y-axis direction). Also, the third holder outer surface 1131S3 may be positioned between the first holder outer surface 1131S1 and the second holder outer surface 1131S2 . The third holder outer surface 1131S3 may be a bottom surface of the holder 1131 . That is, the third holder outer surface 1131S3 may be positioned to face the third housing side.

In addition, the third holder outer surface 1131S3 may include a third seating groove 1131S3a. A third magnet 1151c may be disposed in the third seating groove 1131S3a. The third holder outer surface 1131S3 may be positioned to face the third housing side portion 1123 .

Also, the third housing hole 1123a may at least partially overlap the third seating groove 1131S3a in the first direction (X-axis direction). Accordingly, the third magnet 1151c in the third seating groove 1131S3a and the third coil 1152c in the third housing hole 1123a may be positioned to face each other. In addition, the third magnet 1151c and the third coil 1152c generate electromagnetic force so that the second camera actuator can tilt the Y-axis.

In addition, while the X-axis tilt is performed by a plurality of magnets (first and second magnets 1151a and 1251b), the Y-axis tilt can be performed only by the third magnet 1151c.

In an embodiment, the third seating groove 1131S3a may have a larger width than the first seating groove 1131S1a or the second seating groove 1131S2a. With this configuration, the Y-axis tilt can be performed with current control similar to the X-axis tilt.

The fourth holder outer surface 1131S4 is in contact with the first holder outer surface 1131S1 and the second holder outer surface 1131S2, and in the first direction from the first holder outer surface 1131S1 and the second holder outer surface 1131S2 It may be an outer surface extending in the (X-axis direction). Also, the fourth holder outer surface 1131S4 may be positioned between the first holder outer surface 1131S1 and the second holder outer surface 1131S2 . That is, the fourth holder outer surface 1131S4 may be positioned to face the first member.

The fourth holder outer surface 1131S4 may include a fourth seating groove 1131S4a. A tilting guide part 1141 may be positioned in the fourth seating groove 1131S4a. In addition, the second member 1131a and the first member 1126 may be positioned in the fourth seating groove 1131S4a. And the fourth seating groove 1131S4a may include a plurality of regions. It may include a first area AR1 , a second area AR2 , and a third area AR3 .

A second member 1131a may be positioned in the first area AR1 . That is, the first area AR1 may overlap the second member 1131a in the first direction (X-axis direction). In particular, the first area AR1 may be an area in which the member base portion of the second member 1131a is located. In this case, the first area AR1 may be located on the fourth holder outer surface 1131S4 . That is, the first area AR1 may correspond to an area located above the fourth seating groove 1131S4a. In this case, the first area AR1 may not be an area within the fourth seating groove 1131S4a.

A first member 1126 may be positioned in the second area AR2 . That is, the second area AR2 may overlap the first member 1126 in the first direction (X-axis direction).

Also, the second area AR2 may be located on the fourth holder outer surface 1131S4 like the first area. That is, the second area AR2 may correspond to an area located above the fourth seating groove 1131S4a.

A tilting guide unit may be positioned in the third area AR3 . In particular, the base of the tilting guide part may be positioned in the third area AR3 . That is, the third area AR3 may overlap the tilting guide part (eg, the base) in the first direction (X-axis direction).

Also, the second area AR2 may be positioned between the first area AR1 and the third area AR3 .

In addition, a second member may be disposed in the first area AR1 , and the second member 1131a may include a first groove gr1 . In an embodiment, the second member 1131a may include a first groove gr1 formed in the inner surface 1131aas. In addition, the second magnetic material may be disposed in the first groove gr1 as described above.

And as described above, the first member may be disposed in the second area AR2 . The first groove gr1 may be positioned to face the second groove gr2 . For example, the first groove gr1 may at least partially overlap the second groove gr2 in the third direction (Z-axis direction).

In addition, the repulsive force generated by the second magnetic body may be transmitted to the fourth seating groove 1131S4a of the holder 1131 through the second member. Accordingly, the holder may apply a force to the tilting guide unit in the same direction as the repulsive force generated by the second magnetic body.

The first member may include a second groove gr2 facing the first groove gr1 formed on the outer surface. In addition, the first member may include a second protrusion groove formed on the inner surface as described above. In addition, the second protrusion may be seated in the second protrusion groove.

Also, like the second magnetic body, a repulsive force generated by the first magnetic body and the second magnetic body may be applied to the first member. Accordingly, the first member and the second member may press the tilting guide part disposed between the first member and the holder 1131 through a repulsive force.

A tilting guide unit 1141 may be disposed in the third area AR3 .

In addition, the first protrusion groove PH1 may be located in the fourth seating groove 1131S4a. In addition, the first protrusion of the tilting guide part 1141 may be accommodated in the first protrusion groove PH1 . Accordingly, the first protrusion PR1 may be in contact with the first protrusion groove. A maximum diameter of the first protrusion groove PH1 may correspond to a maximum diameter of the first protrusion portion PR1 . This may be equally applied to the second protrusion groove and the second protrusion PR2 . That is, the maximum diameter of the second protrusion groove may correspond to the maximum diameter of the second protrusion portion PR2 . Accordingly, the second protrusion may be in contact with the second protrusion groove. With this configuration, the first axis tilt with respect to the first protrusion and the second axis tilt with respect to the second protrusion may easily occur, and the radius of tilt may be improved.

Also, in an embodiment, the number of the first protrusion grooves PH1 may be plural. For example, any one of the first protrusion groove PH1 and the second protrusion groove PH2 may include a 1-1 protrusion groove PH1a and a 1-2 protrusion groove PH1b. Hereinafter, it will be described that the first protrusion groove PH1 includes a 1-1 protrusion groove PH1a and a 1-2 protrusion groove PH1b. And the following description may be equally applied to the second protrusion groove PH2. For example, the second protrusion groove PH2 includes the 2-1 protrusion groove and the 2-2 protrusion groove, and the description of the 1-1 protrusion groove is applied to the 2-1 protrusion groove, and the 2-2 protrusion groove is applied. For the protrusion groove, the description of the 1-2 protrusion groove may be applied.

The 1-1 protrusion groove PH1a and the 1-2 protrusion groove PH1b may be arranged side by side in the first direction (x-axis direction). The 1-1 protrusion groove PH1a and the 1-2 protrusion groove PH1b may have the same maximum width.

The number of inclined surfaces of the plurality of first protrusion grooves PH1 may be different from each other. For example, the first protrusion groove PH1 may include a bottom surface of the groove and an inclined surface. In this case, the number of inclined surfaces of the plurality of protrusion grooves may be different from each other. Also, the width of the bottom surface of the projection groove may be different.

For example, the 1-1 protrusion groove PH1a may include a first groove bottom surface LS1 and a first inclined surface CS1. The 1-2 protrusion groove PH1b may include a second groove bottom surface LS2 and a second inclined surface CS2.

In this case, the first groove bottom surface LS1 and the second groove bottom surface LS2 may have different widths. An area of the first groove bottom surface LS1 may be smaller than an area of the second groove bottom surface LS2.

Also, the number of the first inclined surfaces CS1 in contact with the first groove bottom surface LS1 may be different from the number of the second inclined surfaces CS2 . For example, the number of the first inclined surfaces CS1 may be greater than the number of the second inclined surfaces CS2 .

With this configuration, the assembly tolerance of the first protrusion seated in the first protrusion groove PH1 can be easily supplemented. For example, since the number of the first inclined surfaces CS1 is greater than the number of the second inclined surfaces CS2, the first protrusions come into contact with the more inclined surfaces, so that the position of the first protrusions in the 1-1 protrusion groove PH1a is more accurately determined. can keep

On the other hand, in the 1-2 protrusion groove PH1b, the number of inclined surfaces in contact with the first protrusion is smaller than that of the 1-1 protrusion groove PH1b, so that the positions of the first protrusion can be easily adjusted.

In an embodiment, the second inclined surfaces CS2 may be spaced apart from each other in the second direction (Y-axis direction). In addition, the second groove bottom surface LS2 extends in the first direction (X-axis direction) so that the first protrusion can easily move in the first direction (X-axis direction) while the first protrusion is in contact with the second inclined surface CS2 . That is, the position of the first protrusion may be easily adjusted in the 1-2 protrusion groove PH1b.

Also, in the present exemplary embodiment, the first area AR1 , the second area AR2 , and the third area AR3 may have different heights in the first direction (X-axis direction). In an embodiment, the first area AR1 may have a greater height in the first direction (X-axis direction) than the second area AR2 and the third area AR3 . Accordingly, a step may be positioned between the first area AR1 and the second area AR2 .

Also, the second member 1131a may include a first groove gr1 . In other words, the first groove gr1 may be positioned on the inner surface of the member base portion 1131aa. In addition, the above-described second magnetic material may be seated in the first groove gr1 . Also, the number of the first grooves gr1 may be plural according to the number of the second magnetic material. That is, the number of the first grooves gr1 may correspond to the number of the second magnetic material.

In addition, the second member 1131a may include a member base portion 1131aa , a first extension portion 1131ab , and a second extension portion 1131ac .

The member base portion 1131aa may be located at the outermost side of the first camera actuator. The member base portion 1131aa may be positioned outside the first member. That is, the first member may be positioned between the member base part 1131aa and the tilting guide part.

The first extension portion 1131ab may extend in the third direction (Z-axis direction) from the edge of the member base portion 1131aa. That is, the first extension portion 1131ab may extend from the member base portion 1131aa toward the holder 1131 . This is also the case with the second extension 1131ac. Also, the second extension portion 1131ac may extend in the third direction (Z-axis direction) from the edge of the member base portion 1131aa. In an embodiment, the first extension portion 1131ab and the second extension portion 1131ac may be positioned at edges of the member base portion 1131aa in the second direction (Y-axis direction). In addition, the first extension portion 1131ab and the second extension portion 1131ac may be disposed between the upper member and the lower member.

Accordingly, the second member 1131a may have a groove formed by the first extension portion 1131ab and the second extension portion 1131ac. That is, a groove may be positioned between the first extension part 1131ab and the second extension part 1131ac. Accordingly, the first extension portion 1131ab and the second extension portion 1131ac may be connected to each other only by the member base portion 1131aa. With this configuration, the second member 1131a may continuously receive a repulsive force by the second magnetic body seated in the center of the member base portion 1131aa, particularly, the first groove gr1.

In addition, since the second member 1131a is coupled to the holder and moves during X-axis tilt and Y-axis tilt, the rigidity of the second member 1131a may be greater than that of the first member.

Furthermore, as described above, the rigidity of the first member according to the embodiment may be increased by having the upper member and the lower member. With this configuration, a difference in stiffness between the second member and the first member may be reduced. Accordingly, when the holder 1131 coupled to the second member 1131a and the second member 1131a is tilted along the X-axis or the Y-axis, the second member 1131a has a small adjacent distance to the first member. and may be in contact with the first member. Accordingly, since the first member has improved rigidity as described above, it is possible to easily perform an operation as a stopper. That is, the reliability of the camera actuator may be improved.

Furthermore, since the difference in stiffness between the first member and the second member is reduced, damage due to contact during tilting may be minimized. That is, the reliability of the camera actuator may be improved.

In addition, the first extension portion 1131ab may be spaced apart from the second extension portion 1131ac in the second direction (Y-axis direction) to form a separation space. The first member and the tilting guide unit may be seated in this spaced apart space. In addition, the second magnetic body and the first magnetic body may be positioned in the separation space.

Also, the first extension 1131ab and the second extension 1131ac may have the same length in the third direction (Z-axis direction). Accordingly, since the coupling force and weight are balanced, the tilt of the holder can be accurately performed without inclining to one side.

In addition, the first extension portion 1131ab and the second extension portion 1131ac may be coupled to the holder. In this specification, it should be understood that the coupling may be coupled to each other through a bonding member other than the above-described protrusion and groove structures. In an embodiment, the first extension portion 1131ab and the second extension portion 1131ac may include a third coupling groove 1131k formed in a third direction (Z-axis direction). In addition, a coupling protrusion 1131m may be positioned in a region overlapping the first extension portion 1131ab and the second extension portion 1131ac in the third direction (Z-axis direction) in the fourth seating groove 1131S4a. The coupling protrusion 1131m may be positioned to correspond to the third coupling groove 1131k.

For example, a bonding member such as epoxy may be applied to the third coupling groove 1131k. And the coupling protrusion 1131m may be inserted into the third coupling groove 1131k of the first extension 1131ab and the second extension 1131ac. With this configuration, the second member 1131a and the holder 1131 may be coupled to each other. In addition, the repulsive force applied to the second member 1131a may be transmitted to the holder 1130 through this coupling.

However, it should be understood that the positions of the protrusion and the groove structure may be changed from each other as described above.

9A is a perspective view of a tilting guide part of a first camera actuator according to an embodiment, FIG. 9B is a perspective view in a different direction from FIG. 9A, and FIG. 9C is a cross-sectional view taken along FF′ in FIG. 9A.

The tilting guide part 1141 according to the embodiment includes a base BS, a first protrusion PR1 protruding from the first surface 1141a of the base BS, and a second surface 1141b of the base BS protruding from the base BS. It may include a second protrusion PR2 that is Also, the surfaces on which the first protrusion and the second protrusion are formed may be opposite to each other depending on the structure, but will be described below with reference to the drawings. In addition, the first protrusion PR1 and the second protrusion PR2 may be integrally formed with the base BS, and as shown in the drawing, the first protrusion PR1 and the second protrusion RP2 have a spherical shape like a ball. It should be understood that it is possible to have

First, the base BS may include a first surface 1141a and a second surface 1141b opposite to the first surface 1141a. That is, the first surface 1141a may be spaced apart from the second surface 1141b in the third direction (Z-axis direction), and may be outer surfaces facing each other or facing each other within the tilting guide unit 1141 . .

The tilting guide part 1141 may include a first protrusion PR1 extending to one side on the first surface 1141a. According to an embodiment, the first protrusion PR1 may protrude toward the holder from the first surface 1141a. A plurality of first protrusions PR1 may include a 1-1 protrusion PR1a and a 1-2 protrusion PR1b.

The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be positioned side by side in the first direction (X-axis direction). In other words, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may overlap in the first direction (X-axis direction). Also, in the embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be bisected by an imaginary line extending in the first direction (X-axis direction).

In addition, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may have a curvature and, for example, may have a hemispherical shape. In addition, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may contact the first groove of the housing at a point most spaced apart from the first surface 1141a of the base BS.

Also, an alignment groove 1141aa may be positioned on the first surface 1141a. The alignment groove 1141aa may be disposed on one side of the first surface 1141a to provide an assembly position or an assembly direction of the tilting guide unit 1141 during the assembly process.

Also, the tilting guide part 1141 may include a second protrusion PR2 extending to one side on the second surface 1141a. According to an embodiment, the second protrusion PR2 may protrude toward the housing from the second surface 1141b. In addition, the second protrusion PR2 is plural, and may include a 2-1 protrusion PR2a and a 2-2 protrusion PR2b in an embodiment.

The 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be positioned side by side in the second direction (Y-axis direction). That is, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may overlap in the second direction (Y-axis direction). Also, in the exemplary embodiment, the 2-1 th protrusion PR2a and the 2-2 th protrusion PR2b may be bisected by an imaginary line extending in the second direction (Y-axis direction).

The second-first protrusion PR2a and the second-second protrusion PR2b may have a curvature, for example, a hemispherical shape. In addition, the second-first protrusion PR2a and the second-second protrusion PR2b may contact the second member 1131a at a point spaced apart from the second surface 1141b of the base BS.

The 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be positioned in a region between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction. According to the embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b are disposed in the center of the space between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction. can be located With this configuration, the actuator according to the embodiment may have the X-axis tilt angle with respect to the X-axis in the same range. In other words, the tilting guide unit 1141 sets the X-axis in a range (eg, positive/negative range) in which the holder can tilt the X-axis based on the 1-1 protrusion PR1a and the 1-2 protrusion PR1b. The same can be provided as a standard.

Also, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be positioned in a region between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction. According to the embodiment, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b are disposed at the center of the space between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction. can be located With this configuration, the actuator according to the embodiment can have the angle of the Y-axis tilt with respect to the Y-axis in the same range. In other words, the tilting guide part 1141 and the holder set the Y-axis tiltable range (eg, positive/negative range) based on the 2-1 protrusion PR2a and the 2-2 protrusion PR2b on the Y-axis. The same can be provided as a standard.

Specifically, the first surface 1141a may include a first outer line M1 , a second outer line M2 , a third outer line M3 , and a fourth outer line M4 . The first outer line M1 and the second outer line M2 may face each other, and the third outer line M3 and the fourth outer line M4 may face each other. In addition, a third outer line M3 and a fourth outer line M4 may be positioned between the first outer line M1 and the second outer line M2 . And the first outer line M1 and the second outer line M2 are perpendicular to the first direction (X-axis direction), but the third outer line M3 and the fourth outer line M4 are in the first direction (X-axis direction) axial direction).

In this case, the first protrusion PR1 may be positioned on the first virtual line VL1 . Here, the first virtual line LV1 is a line that bisects the first outer line M1 and the second outer line M2 . Alternatively, the first and third virtual lines LV1 and LV1' are lines that bisect the base BS in the second direction (Y-axis direction). Accordingly, the tilting guide unit 1141 may easily perform the X-axis tilt through the first protrusion PR1 . In addition, since the tilting guide unit 1141 performs the X-axis tilt based on the first virtual line VL1 , a rotational force may be uniformly applied to the tilting guide unit 1141 . Accordingly, the X-axis tilt can be precisely performed and the reliability of the device can be improved.

Also, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be symmetrically disposed with respect to the first imaginary line VL1 and the second imaginary line VL2 . Alternatively, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be symmetrically positioned with respect to the first central point C1 . With this configuration, the support force supported by the first protrusion PR1 may be equally applied to the upper and lower sides of the second virtual line VL2 when tilting the X-axis. Accordingly, the reliability of the tilting guide unit may be improved. Here, the second virtual line VL2 is a line that bisects the third outer line M3 and the fourth outer line M4 . Alternatively, the second and fourth virtual lines LV2 and LV2' are lines that bisect the base BS in the first direction (X-axis direction).

In addition, the first central point C1 may be an intersection of the first virtual line VL1 and the second virtual line VL2 . Alternatively, it may be a point corresponding to the center of gravity according to the shape of the tilting guide unit 1141 .

In addition, the second surface 1141b may include a fifth outer line M1 ′, a sixth outer line M2 ′, a seventh outer line M3 ′, and an eighth outer line M4 ′. The fifth outer line M1 ′ and the sixth outer line M2 ′ may face each other, and the seventh outer line M3 ′ and the eighth outer line M4 ′ may face each other. In addition, a seventh outer line M3' and an eighth outer line M4' may be positioned between the fifth outer line M1' and the sixth outer line M2'. And the fifth outer line M1' and the sixth outer line M2' are perpendicular to the first direction (X-axis direction), but the seventh outer line M3' and the eighth outer line M4' are the second It may be parallel to one direction (X-axis direction).

In addition, since the tilting guide unit 1141 performs Y-axis tilt based on the fourth virtual line VL2 ′, a rotational force may be uniformly applied to the tilting guide unit 1141 . Accordingly, the Y-axis tilt can be precisely performed and the reliability of the device can be improved.

Also, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be symmetrically disposed on the fourth imaginary line VL2 ′ to the third imaginary line VL1 ′. Alternatively, the second-first protrusion PR2a and the second-second protrusion PR2b may be symmetrically positioned with respect to the second central point C1 ′. According to this configuration, the supporting force supported by the second protrusion PR2 may be equally applied to the upper and lower sides of the tilting guide unit with respect to the fourth virtual line VL2 ′ when the Y-axis is tilted. Accordingly, the reliability of the tilting guide unit may be improved. Here, the third virtual line LV1' is a line that bisects the fifth outer line M1' and the sixth outer line M2'. In addition, the second central point C1' may be an intersection of the third virtual line VL1' and the fourth virtual line VL2'. Alternatively, it may be a point corresponding to the center of gravity according to the shape of the tilting guide unit 1141 .

In addition, the interval DR2 in the first direction (X-axis direction) between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b is in the first direction (X-axis direction) of the second protrusion PR2 . can be greater than the length. Accordingly, when the X-axis tilt is performed based on the 1-1 protrusion PR1a and the 1-2 protrusion PR1b, resistance due to the second protrusion PR2 may be minimized.

Correspondingly, the interval ML2 in the second direction (Y-axis direction) between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b is in the second direction (Y-axis) of the first protrusion PR1 . direction) may be greater than the length. Accordingly, when the Y-axis tilt is performed based on the 2-1 protrusion PR2a and the 2-2 protrusion PR2b, resistance due to the first protrusion PR1 may be minimized.

10 is a diagram illustrating a first driving unit of a first camera actuator according to an embodiment.

Referring to FIG. 10 , the first driving unit 1150 includes a driving magnet 1151 , a driving coil 1152 , a Hall sensor unit 1153 , a first substrate unit 1154 , and a yoke unit 1155 .

Also, as described above, the driving magnet 1151 may include a first magnet 1151a , a second magnet 1151b , and a third magnet 1151c providing driving force by electromagnetic force. The first magnet 1151a , the second magnet 1151b , and the third magnet 1151c may be located on the outer surface of the holder 1131 , respectively.

Also, the driving coil 1152 may include a plurality of coils. In an embodiment, the driving coil 1152 may include a first coil 1152a , a second coil 1152b , and a third coil 1152c .

The first coil 1152a may be positioned to face the first magnet 1151a. Accordingly, the first coil 1152a may be positioned in the first housing hole 1121a of the first housing side 1121 as described above. Also, the second coil 1152b may be positioned to face the second magnet 1151b. Accordingly, the second coil 1152b may be located in the second housing hole 1122a of the second housing side 1122 as described above.

The second camera actuator according to the embodiment rotates the mover 1130 in a first axis (X-axis direction) or a second axis (Y-axis direction) by electromagnetic force between the driving magnet 1151 and the driving coil 1152 by controlling the rotation. When implementing OIS, it is possible to provide the best optical characteristics by minimizing the occurrence of a decent or tilt phenomenon.

In addition, according to the embodiment, through the tilting guide part 1141 of the rotating part 1140 disposed between the first housing 1120 and the mover 1130, OIS is implemented to solve the size limitation of the actuator, so that the ultra-slim, ultra-small camera It is possible to provide an actuator and a camera module including the same.

The first substrate portion 1154 may include a first substrate side portion 1154a , a second substrate side portion 1154b , and a third substrate side portion 1154c .

The first substrate side portion 1154a and the second substrate side portion 1154b may be disposed to face each other. In addition, the third substrate side portion 1154c may be positioned between the first substrate side portion 1154a and the second substrate side portion 1154b.

Also, the first substrate side 1154a may be positioned between the first housing side and the shield can, and the second substrate side 1154b may be positioned between the second housing side and the shield can. Also, the third substrate side part 1154c may be positioned between the third housing side part and the shield can, and may be the bottom surface of the first substrate part 1154 .

The first substrate side portion 1154a may be coupled to the first coil 1152a and electrically connected thereto. Also, the first substrate side portion 1154a may be coupled to the first Hall sensor 1153a and electrically connected thereto.

The second substrate side 1154b may be coupled to and electrically connected to the second coil 1152b. It should also be understood that the second substrate side 1154b may engage and electrically connect with the first Hall sensor.

The third substrate side 1154c may be coupled to and electrically connected to the third coil 1152c. In addition, the third substrate side portion 1154c may be coupled to and electrically connected to the second Hall sensor 1153b.

The yoke unit 1155 may include a first yoke 1155a, a second yoke 1155b, and a third yoke 1155c. The first yoke 1155a may be positioned in the first seating groove and may be coupled to the first magnet 1151a. In addition, the second yoke 1155b may be positioned in the second seating groove and coupled to the second magnet 1151b. Also, the third yoke 1155c may be positioned in the third seating groove and may be coupled to the third magnet 1151c. The first to third yokes 1155a to 1155c allow the first to third magnets 1151a to 1151c to be easily seated in the first to third seating grooves to be coupled to the housing.

11A is a perspective view of a first camera actuator according to an embodiment, FIG. 11B is a cross-sectional view taken along line PP′ in FIG. 11A, and FIG. 11C is a cross-sectional view taken along QQ′ in FIG. 11A.

11A to 11C , the first coil 1152a may be located on the first housing side 1121, and the first magnet 1151a may be located on the first holder outer surface 1131S1 of the holder 1131. have. Accordingly, the first coil 1152a and the first magnet 1151a may be positioned to face each other. The first magnet 1151a may at least partially overlap the first coil 1152a in the second direction (Y-axis direction).

In addition, the second coil 1152b may be positioned on the second housing side 1122 , and the second magnet 1151b may be positioned on the second holder outer surface 1131S2 of the holder 1131 . Accordingly, the second coil 1152b and the second magnet 1151b may be positioned to face each other. The second magnet 1151b may at least partially overlap the second coil 1152b in the second direction (Y-axis direction).

In addition, the first coil 1151a and the second coil 1152b overlap in the second direction (Y-axis direction), and the first magnet 1151a and the second magnet 1151b are disposed in the second direction (Y-axis direction). can be nested.

With this configuration, the electromagnetic force applied to the outer surface of the holder (the first holder outer surface and the second holder outer surface) is located on the parallel axis in the second direction (Y-axis direction), so that the X-axis tilt is accurate and precise. can be performed.

In addition, the second protrusions PR2a and PR2b of the tilting guide part 1141 may contact the first member 1126 of the first housing 1120 . The second protrusion PR2 may be seated in the second protrusion groove PH2 formed on one side of the first member 1126 . In addition, when performing X-axis tilt, the second protrusions PR2a and PR2b may be the reference axis (or rotation axis) of the tilt. Accordingly, the tilting guide unit 1141 and the mover 1130 may move in the second direction.

Also, as described above, the first Hall sensor 1153a may be positioned outside for electrical connection and coupling with the first substrate unit 1154 . However, it is not limited to these positions.

Also, the third coil 1151c may be positioned on the third housing side 1123 , and the third magnet 1152c may be positioned on the third holder outer surface 1131S3 of the holder 1131 . The third coil 1151c and the third magnet 1152c may at least partially overlap in the first direction (X-axis direction). Accordingly, the strength of the electromagnetic force between the third coil 1151c and the third magnet 1152c may be easily controlled.

The tilting guide part 1141 may be located on the fourth holder outer surface 1131S4 of the holder 1131 as described above. In addition, the tilting guide part 1141 may be seated in the fourth seating groove 1131S4a of the outer surface of the fourth holder. As described above, the fourth seating groove 1131S4a may include the above-described first area AR1 , the second area AR2 , and the third area AR3 .

A second member 1131a may be disposed in the first area AR1 , and the second member 1131a may include a first groove gr1 formed on an inner surface thereof. And the second magnetic body 1142 is disposed in the first groove gr1 as described above, and the repulsive force RF2 generated from the second magnetic body 1142 is applied to the fourth of the holder 1131 through the second member 1131a. It can be transferred to the seating groove 1131S4a (RF2'). Accordingly, the holder 1131 may apply a force to the tilting guide unit 1141 in the same direction as the repulsive force RF2 generated by the second magnetic body 1142 .

A first member 1126 may be disposed in the second area AR2 . The first member 1126 may include a second groove gr2 facing the first groove gr1 . Also, the first member 1126 may include a second protrusion groove PH2 disposed on a surface corresponding to the second groove gr2 . In addition, a repulsive force RF1 generated from the first magnetic body 1143 may be applied to the first member 1126 . Accordingly, the first member 1126 and the second member 1131a press the tilting guide part 1141 disposed between the first member 1126 and the holder 1131 through the generated repulsive forces RF1 and RF2'. can do. Accordingly, even after the holder is tilted in the X-axis or in the Y-axis by the current applied to the first and second coils or the third coil 1152c, between the holder 1131, the first housing 1120, and the tilting guide unit 1141 Bonding can be maintained.

A tilting guide unit 1141 may be disposed in the third area AR3 . The tilting guide part 1141 may include the first protrusion PR1 and the second protrusion PR2 as described above. In this case, the first protrusion PR1 and the second protrusion PR2 may be respectively disposed on the second surface 1141b and the first surface 1141a of the base BS. As such, in other exemplary embodiments to be described below, the first protrusion PR1 and the second protrusion PR2 may be variously positioned on opposite surfaces of the base BS.

The first protrusion groove PH1 may be located in the fourth seating groove 1131S4a. In addition, the first protrusion PR1 of the tilting guide part 1141 may be accommodated in the first protrusion groove PH1 . Accordingly, the first protrusion PR1 may be in contact with the first protrusion groove PH1 . A maximum diameter of the first protrusion groove PH1 may correspond to a maximum diameter of the first protrusion portion PR1 . This may be equally applied to the second protrusion groove PH2 and the second protrusion portion PR2 . That is, the maximum diameter of the second protrusion groove PH2 may correspond to the maximum diameter of the second protrusion portion PR2 . In addition, the second protrusion PR2 may contact the second protrusion groove PH2 . With this configuration, the first axis tilt with respect to the first protrusion PR1 and the second axis tilt with respect to the second protrusion PR2 may easily occur, and the tilt radius may be improved.

In addition, the tilting guide part 1141 is arranged side by side with the second member 1131a and the first member 1126 in the third direction (Z-axis direction), so that the tilting guide part 1141 is connected to the optical member 1132 and the second member 1131 . They may overlap in one direction (X-axis direction). More specifically, in the embodiment, the first protrusion PR1 may overlap the optical member 1132 in the first direction (X-axis direction). Furthermore, at least a portion of the first protrusion PR1 may overlap the third coil 1152c or the third magnet 1151c in the first direction (X-axis direction). That is, each protrusion, which is a central axis of tilt in the camera actuator according to the embodiment, may be located adjacent to the center of gravity of the mover 1130 . Accordingly, the tilting guide portion may be positioned adjacent to the center of gravity of the holder. Accordingly, the camera actuator according to the embodiment can minimize the value of the moment for tilting the holder, and can also minimize the consumption of current applied to the coil unit to tilt the holder, so power consumption and reliability of the device can be improved. .

In addition, the second magnetic body 1142 and the first magnetic body 1143 may not overlap the third coil 1151c or the optical member 1132 in the first direction (X-axis direction). In other words, in the embodiment, the second magnetic body 1142 and the first magnetic body 1143 may be spaced apart from the third coil 1151c or the optical member 1132 in the third direction (Z-axis direction). Accordingly, the magnetic force transmitted from the second magnetic body 1142 and the first magnetic body 1143 to the third coil 1151c may be minimized. Accordingly, the camera actuator according to the embodiment can easily perform vertical driving (Y-axis tilt), and power consumption can be minimized.

Furthermore, as described above, the second Hall sensor 1153b located inside the third coil 1153c detects a magnetic flux change, whereby the position sensing between the third magnet 1151c and the second Hall sensor 1153b is performed. can be performed. In this case, the offset voltage of the second Hall sensor 1153b may be changed according to the influence of the magnetic field formed from the second magnetic material 1142 and the first magnetic material 1143 .

The first camera actuator according to the embodiment includes a second member 1131a, a second magnetic body 1142, a first magnetic body 1143, a first member 1126, a tilting guide unit 1141, and a holder ( 1141 ) in a third direction. 1131) may be arranged in order. However, since the second magnetic body is positioned in the second member and the first magnetic body is positioned in the first member, the second member, the first member, the tilting guide unit, and the holder may be disposed in the order of the bar.

And in an embodiment, the separation distance between the second magnetic body 1142 and the first magnetic body 1143 in the third direction from the holder 1131 (or the optical member 1132) may be greater than the separation distance between the tilting guide parts 1141. have. Accordingly, the second Hall sensor 1153b under the holder 1131 may also be spaced apart from the second magnetic body 1142 and the first magnetic body 1143 by a predetermined distance. Accordingly, in the second Hall sensor 1153b, the influence of the magnetic field formed from the second magnetic material 1142 and the first magnetic material 1143 is minimized, thereby preventing the Hall voltage from being concentrated positively or negatively and saturated. That is, this configuration enables the Hall electrode to have a range in which Hall calibration can be performed. Furthermore, the temperature is also affected by the electrode of the Hall sensor, and the resolution of the camera lens varies according to the temperature. Thus, it is possible to easily prevent a decrease in resolution.

In addition, a circuit design for compensating for an offset with respect to the output (ie, Hall voltage) of the second Hall sensor 1153b can be easily made.

Also, according to the embodiment, in the tilting guide part 1141 , a partial area of the holder 1131 may be located outside the outer surface of the fourth holder compared to the outer surface of the fourth holder.

The tilting guide part 1141 may be seated in the fourth seating groove 1131S4a with respect to the base BS, except for the first protrusion PR1 and the second protrusion PR2 . In other words, the length in the third direction (Z-axis direction) of the base BS may be smaller than the length in the third direction (Z-axis direction) of the fourth seating groove 1131S4a. According to such a structure, size reduction can be achieved easily.

In addition, the maximum length of the tilting guide part 1141 in the third direction (Z-axis direction) may be greater than the length in the third direction (Z-axis direction) of the fourth seating groove 1131S4a. Accordingly, as described above, the end of the second protrusion PR2 may be positioned between the outer surface of the fourth holder and the first member 1126 . That is, at least a portion of the second protrusion PR2 may be located in a direction opposite to the third direction (Z-axis direction) than the holder 1131 . In other words, the holder 1131 may be spaced apart a predetermined distance from the end (a portion in contact with the second protrusion groove) of the second protrusion PR2 in the third direction (Z-axis direction).

Also, the front surface 1131aes of the second member 1131a according to the embodiment may be spaced apart from the front surface 1126es of the second member 1126 . In particular, the front surface 1131aes of the second member 1131a according to the embodiment may be positioned in the third direction (Z-axis direction) from the front surface 1126es of the second member 1126 . Alternatively, the front surface 1131aes of the second member 1131a according to the embodiment may be located inside the front surface 1126es of the second member 1126 . To this end, the first member 1126 may have an inwardly extended and bent structure. In addition, a portion of the second member 1131a may be located in a groove formed by the extended and bent structure of the first member 1126 .

With this configuration, since the second member 1131a is positioned inside the second member 1126 , space efficiency can be improved and miniaturization can be realized. Furthermore, even if driving by electromagnetic force (tilting or rotating of the mover 1130) is performed, the second member 1131a does not protrude to the outside of the first member 1126, so that contact with surrounding elements may be blocked. Accordingly, reliability may be improved.

Also, a predetermined separation space may exist between the second magnetic body 1142 and the first magnetic body 1143 . In other words, the second magnetic body 1142 and the first magnetic body 91143 may face each other with the same polarity.

12A is a perspective view of a first camera actuator according to an embodiment, FIG. 12B is a cross-sectional view taken along SS′ in FIG. 12A, and FIG. 12C is an exemplary view of movement of the first camera actuator shown in FIG. 12B.

12A to 12C , the Y-axis tilt may be performed by the first camera actuator according to the embodiment. That is, the OIS may be implemented by rotating in the first direction (X-axis direction).

In an embodiment, the third magnet 1151c disposed under the holder 1131 forms an electromagnetic force with the third coil 1152c to tilt or rotate the mover 1130 based on the second direction (Y-axis direction). can do it

Specifically, the repulsive force between the second magnetic body 1142 and the first magnetic body 1143 is transmitted to the second member 1131a and the first member 1126 , and finally between the first member 1126 and the holder 1131 . It may be transferred to the tilting guide unit 1141 disposed on the . Accordingly, the tilting guide unit 1141 may be pressed by the mover 1130 and the first housing 1120 by the above-described repulsive force.

Also, the second protrusion PR2 may be supported by the first member 1126 . In this case, in an embodiment, the tilting guide unit 1141 uses the second protrusion PR2 protruding toward the first member 1126 as a reference axis (or rotation axis), that is, in the second direction (Y-axis direction). It can be rotated or tilted. In other words, the tilting guide unit 1141 may rotate or tilt the second protrusion PR2 protruding toward the first member 1126 in the first direction (X-axis direction) with respect to the reference axis (or rotation axis).

For example, the mover 1130 is moved by the first electromagnetic force F1A, F1B between the third magnet 1151c disposed in the third seating groove and the third coil unit 1152c disposed on the side of the third substrate. The OIS may be implemented while rotating (X1->X1a) at a first angle θ1 in the axial direction.

Conversely, the mover 1130 is moved in the X-axis direction by the first electromagnetic forces F1A and F1B between the third magnet 1151c disposed in the third seating groove and the third coil unit 1152c disposed on the side of the third substrate. OIS may be implemented while rotating (X1->X1b) at a first angle θ1 in the opposite direction to .

The first angle θ1 may be ±1° to ±3°. However, the present invention is not limited thereto.

Also, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be arranged side by side in the third direction (Z-axis direction). In other words, the center line TL1 connecting the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be parallel to the third direction (Z-axis direction).

In addition, a bisector line TL2 that bisects the second protrusion portion PR2 and corresponds to the third direction (Z-axis direction) may be parallel to the center line TL1 . In other words, the bisector line TL2 may be a line that bisects the second protrusion portion PR2 in the first direction (X-axis direction), and may be plural.

In an embodiment, the bisector TL2 may be spaced apart from the center line TL1 in the first direction (X-axis direction). The bisector line TL2 may be positioned above the center line TL1 . With this configuration, the separation distance between the third coil 1152c or the third magnet 1151c increases, so that the holder can more accurately biaxially tilt. Furthermore, when current is not applied to the coil, the position of the holder can be maintained the same.

More specifically, since the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 are spaced apart from the bisector TL2 in the first direction (X-axis direction), the second magnetic body 1142 ) and a force (eg, repulsive force) between the first magnetic body 1143 may act apart from the bisector TL2 corresponding to the optical axis in the first direction (X-axis direction). And momentum is generated in the mover 1130 by this force. However, when the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 are located on the bisector TL2, the calibration proceeds depending on the position of the rotation guide part and the second magnetic body 1142 . There is a problem that it does not hold after tilt. That is, since the camera actuator according to the embodiment prevents the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 from being disposed on the bisector TL2, the tilting guide after tilting or rotating. The positions of the negative and the second magnetic body 1142 may be maintained.

In another embodiment, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be spaced apart from each other in the first direction (X-axis direction).

Also, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may not be located on the bisector TL2 . For example, the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be positioned above the bisector TL2 .

Accordingly, the separation distance between the third coil 1152c or the third magnet 1151c increases, so that the holder can more accurately biaxially tilt. Furthermore, when current is not applied to the coil, the position of the holder can be maintained the same.

Also, the second magnetic body 1142 and the first magnetic body 1143 may have different lengths in the first direction (X-axis direction).

In an embodiment, the area of the second magnetic body 1142 coupled with the second member 1131a and tilted together with the mover 1130 may be larger than that of the first magnetic body 1143 . For example, the length of the second magnetic body 1142 in the first direction (X-axis direction) may be greater than the length of the first magnetic body 1143 in the first direction (X-axis direction). Also, the length of the second magnetic body 1142 in the second direction (Y-axis direction) may be greater than the length of the first magnetic body 1143 in the second direction (Y-axis direction). Also, the first magnetic body 1143 may be positioned within an imaginary straight line extending both ends of the second magnetic body 1142 in the third direction.

Due to this configuration, it is possible to easily prevent a force other than a vertical force from being generated by tilting even if one magnetic material (eg, a second magnetic material) is tilted during tilting or rotation. That is, even if the second magnetic body is tilted up and down together with the mover 1130 , a force (eg, repulsive force or attractive force) that opposes the tilt may not be received from the first magnetic body 1143 . Thereby, the driving efficiency can be improved.

13A is a cross-sectional view taken along line RR' in FIG. 12A , and FIG. 13B is an exemplary view of the movement of the first camera actuator shown in FIG. 13A .

13A and 13B , an X-axis tilt may be performed. That is, OIS may be implemented while the mover 1130 is tilted or rotated in the Y-axis direction.

In an embodiment, the first magnet 1151a and the second magnet 1151b disposed in the holder 1131 form an electromagnetic force with the first coil 1152a and the second coil 1152b, respectively, in the first direction (X axial direction), the tilting guide unit 1141 and the mover 1130 may be tilted or rotated.

Specifically, the repulsive force between the second magnetic body 1142 and the first magnetic body 1143 is transmitted to the first member 1126 and the holder 1131 , and finally disposed between the holder 1131 and the first member 1126 . It may be transmitted to the tilting guide unit 1141 that becomes the Accordingly, the tilting guide unit 1141 may be pressed by the mover 1130 and the first housing 1120 by the above-described repulsive force.

And the 1-1 protrusion PR1a and the 1-2 protrusion PR1b are spaced apart from each other in the first direction (X-axis direction), and the first protrusion groove PH1 formed in the fourth seating groove 1131S4a of the holder 1131 . ) can be supported by In addition, in an embodiment, the tilting guide unit 1141 uses the first protrusion PR1 protruding toward the holder 1131 (eg, toward the third direction) as a reference axis (or rotation axis), that is, in the first direction (X). axial direction) can be rotated or tilted.

For example, the second electromagnetic force F2A between the first and second magnets 1151a and 1251b disposed in the first seating groove and the first and second coil units 1152a and 1252b disposed on the side of the first and second substrates; F2B), while rotating the mover 1130 at a second angle θ2 in the Y-axis direction (Y1->Y1a), the OIS may be implemented. In addition, the second electromagnetic force (F2A, F2B) between the first and second magnets 1151a and 1251b disposed in the first seating groove and the first and second coil parts 1152a and 1252b disposed on the side of the first and second substrates OIS may be implemented while rotating the mover 1130 at a second angle θ2 in the Y-axis direction (Y1->Y1b). The second angle θ2 may be ±1° to 3°. However, the present invention is not limited thereto.

As such, the second actuator according to the embodiment moves the mover 1130 in the first direction (X-axis direction) or in the second direction (Y-axis direction) by the electromagnetic force between the driving magnet in the holder and the driving coil disposed in the first housing. By controlling the rotation with , it is possible to minimize the occurrence of decent or tilt and provide the best optical characteristics when implementing OIS. In addition, as described above, 'Y-axis tilt' means rotating or tilting in the first direction (X-axis direction), and 'X-axis tilting' means rotating or tilting in the second direction (Y-axis direction). do.

14 is a view for explaining an assembly procedure of the first camera actuator according to the embodiment.

Referring to FIG. 14 , a method of assembling a first camera actuator according to an embodiment includes coupling a first coil to a third coil and a first substrate unit to a first housing, a first mover 1130 to the first housing, and tilting The step of coupling the guide part 1141 , the first member 1126 , and the second member 1131a , the combined mover 1130 , the tilting guide part 1141 , the first member 1126 , and the second member 1131a ) may be made in the step of inserting the first housing (1120).

In an embodiment, the mover 1130, the tilting guide part 1141, the first member 1126, and the second member 1131a are combined after the step of coupling the first to third coils and the first substrate to the first housing. ) may be inserted into the first housing 1120 . For this reason, it is possible to minimize the influence of tolerances or foreign substances generated while coupling the first to third coils and the first substrate with the first housing on the optical member or the holder. Due to this, the driving accuracy of the first camera actuator may be improved.

Furthermore, the combined mover 1130, the tilting guide part 1141, the first member 1126, and the second member 1131a are attached to the first housing 1120 from the side, for example, in the third direction (Z-axis direction). Since it is inserted, it is possible to minimize the impact applied to the combined mover 1130 , the tilting guide unit 1141 , the first member 1126 , and the second member 1131a compared to the case of insertion in the vertical direction.

In addition, the third direction (Z-axis direction) of the central portion of the first member 1126 (corresponding to the tilting guide portion or overlapping in the third direction, or corresponding to the 'connection member' between the first through hole and the second through hole) ), the sum of the length ka and the length kb in the third direction (Z-axis direction) of the member base portion of the second member 1131a is the upper and lower frames connected to the central portion of the first member 1126 (upper member and lower member) It may be less than or equal to the length kc in the third direction (Z-axis direction) of the member). With this configuration, as described above, even when the second member 1131a is tilted or rotated, it may not protrude outward from the outer surface of the first member 1126 .

Also, as described above, the first member 1126 may be combined with the first housing 1120 to form a single housing. For example, one housing may include a first-second housing and a first-first housing 11200, which are the first members.

15 is a perspective view of a second camera actuator according to the embodiment, FIG. 16 is an exploded perspective view of the second camera actuator according to the embodiment, FIG. 17 is a cross-sectional view taken along DD′ in FIG. 15, and FIG. It is a cross-sectional view viewed from EE'.

15 to 18 , the second camera actuator 1200 according to the embodiment includes a lens unit 1220 , a second housing 1230 , a second driving unit 1250 , a base unit (not shown) and a second camera actuator 1200 . Two substrate units 1270 may be included. Furthermore, the second camera actuator 1200 may further include a second shield can (not shown), an elastic part (not shown), and a bonding member (not shown). Furthermore, the second camera actuator 1200 according to the embodiment may further include an image sensor IS.

The second shield can (not shown) is located in one region (eg, the outermost) of the second camera actuator 1200 and includes components (the lens unit 1220 , the second housing 1230 , and the elastic unit to be described later). (not shown), the second driving unit 1250, the base unit (not shown), the second substrate unit 1270, and the image sensor IS).

The second shield can (not shown) may block or reduce electromagnetic waves generated from the outside. Accordingly, the occurrence of a malfunction in the second driving unit 1250 may be reduced.

The lens unit 1220 may be located in the second shield can (not shown). The lens unit 1220 may move in a third direction (Z-axis direction). Accordingly, the above-described AF function may be performed.

Specifically, the lens unit 1220 may include a lens assembly 1221 and a bobbin 1222 .

The lens assembly 1221 may include at least one lens. Also, there may be a plurality of lens assemblies 1221 , but hereinafter, one lens assembly will be used as a reference.

The lens assembly 1221 is coupled to the bobbin 1222 to move in the third direction (Z-axis direction) by electromagnetic force generated from the fourth magnet 1252a and the second magnet 1252b coupled to the bobbin 1222 . .

The bobbin 1222 may include an opening area surrounding the lens assembly 1221 . In addition, the bobbin 1222 may be coupled to the lens assembly 1221 by various methods. Also, the bobbin 1222 may include a groove in the side thereof, and may be coupled to the fourth magnet 1252a and the second magnet 1252b through the groove. A bonding member or the like may be applied to the groove.

In addition, the bobbin 1222 may be coupled to an elastic part (not shown) at the upper end and the rear end. Accordingly, the bobbin 1222 may be supported by an elastic part (not shown) to move in the third direction (Z-axis direction). That is, the position of the bobbin 1222 may be maintained while being maintained in the third direction (Z-axis direction). The elastic part (not shown) may be formed of a leaf spring.

The second housing 1230 may be disposed between the lens unit 1220 and the second shield can (not shown). In addition, the second housing 1230 may be disposed to surround the lens unit 1220 .

A hole may be formed in a side of the second housing 1230 . A fourth coil 1251a and a fifth coil 1251b may be disposed in the hole. The hole may be positioned to correspond to the groove of the bobbin 1222 described above.

The fourth magnet 1252a may be positioned to face the fourth coil 1251a. Also, the second magnet 1252b may be positioned to face the fifth coil 1251b.

The elastic part (not shown) may include a first elastic member (not shown) and a second elastic member (not shown). The first elastic member (not shown) may be coupled to the upper surface of the bobbin 1222 . The second elastic member (not shown) may be coupled to the lower surface of the bobbin 1222 . In addition, the first elastic member (not shown) and the second elastic member (not shown) may be formed of a leaf spring as described above. In addition, the first elastic member (not shown) and the second elastic member (not shown) may provide elasticity with respect to the movement of the bobbin 1222 .

The second driving unit 1250 may provide driving forces F3 and F4 for moving the lens unit 1220 in the third direction (Z-axis direction). The second driving unit 1250 may include a driving coil 1251 and a driving magnet 1252 .

The lens unit 1220 may move in the third direction (Z-axis direction) by the electromagnetic force formed between the driving coil 1251 and the driving magnet 1252 .

The driving coil 1251 may include a fourth coil 1251a and a fifth coil 1251b. The fourth coil 1251a and the fifth coil 1251b may be disposed in a hole formed in the side of the second housing 1230 . In addition, the fourth coil 1251a and the fifth coil 1251b may be electrically connected to the second substrate unit 1270 . Accordingly, the fourth coil 1251a and the fifth coil 1251b may receive current or the like through the second substrate unit 1270 .

The driving magnet 1252 may include a fourth magnet 1252a and a fifth magnet 1252b. The fourth magnet 1252a and the fifth magnet 1252b may be disposed in the aforementioned groove of the bobbin 1222 and may be positioned to correspond to the fourth coil 1251a and the fifth coil 1251b.

The base unit (not shown) may be positioned between the lens unit 1220 and the image sensor IS. A component such as a filter may be fixed to the base portion (not shown). Also, the base part (not shown) may be disposed to surround the image sensor IS. With this configuration, since the image sensor IS is free from foreign substances, the reliability of the device may be improved.

Also, the second camera actuator may be a zoom actuator or an auto focus (AF) actuator. For example, the second camera actuator may support one or a plurality of lenses and may perform an autofocusing function or a zooming function by moving the lenses according to a control signal of a predetermined control unit.

And the second camera actuator may be a fixed zoom or a continuous zoom. For example, the second camera actuator may provide movement of the lens assembly 1221 .

In addition, the second camera actuator may be formed of a plurality of lens assemblies. For example, the second camera actuator may include at least one of a first lens assembly (not shown), a second lens assembly (not shown), a third lens assembly (not shown), and a guide pin (not shown). can be placed. In this regard, the above description may be applied. Accordingly, the second camera actuator may perform a high-magnification zooming function through the driving unit. For example, the first lens assembly (not shown) and the second lens assembly (not shown) may be a moving lens that moves through a driving unit and a guide pin (not shown), and the third lens The assembly (not shown) may be a fixed lens, but is not limited thereto. For example, a third lens assembly (not shown) may perform a function of a concentrator to image light at a specific location, and a first lens assembly (not shown) may function as a concentrator. (not shown) may perform a variator function to reimage the image formed in another place. On the other hand, in the first lens assembly (not shown), the distance to the subject or the image distance is changed a lot, so the magnification change may be large. can play an important role in On the other hand, the image formed by the first lens assembly (not shown), which is a variable changer, may be slightly different depending on the location. Accordingly, the second lens assembly (not shown) may perform a position compensation function for the image formed by the variable changer. For example, the second lens assembly (not shown) functions as a compensator to accurately image the image formed by the first lens assembly (not shown), which is a variable changer, at the actual image sensor position. can be done

The image sensor IS may be located inside or outside the second camera actuator. In an embodiment, as shown, the image sensor IS may be located inside the second camera actuator. The image sensor IS may receive light and convert the received light into an electrical signal. Also, the image sensor IS may have a plurality of pixels in the form of an array. And the image sensor IS may be located on the optical axis.

19 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.

As shown in FIG. 19 , the mobile terminal 1500 of the embodiment may include a camera module 1000 , a flash module 1530 , and an autofocus device 1510 provided on the rear side.

The camera module 1000 may include an image capturing function and an auto focus function. For example, the camera module 1000 may include an auto-focus function using an image.

The camera module 1000 processes an image frame of a still image or a moving image obtained by an image sensor in a shooting mode or a video call mode.

The processed image frame may be displayed on a predetermined display unit and stored in a memory. A camera (not shown) may also be disposed on the front of the mobile terminal body.

For example, the camera module 1000 may include the first camera module 1000 and the second camera module 1000 , and OIS may be implemented with the AF or zoom function by the first camera module 1000A. can

The flash module 1530 may include a light emitting device that emits light therein. The flash module 1530 may be operated by a camera operation of a mobile terminal or a user's control.

The autofocus device 1510 may include one of the packages of the surface light emitting laser device as a light emitting part.

The auto-focusing device 1510 may include an auto-focusing function using a laser. The auto focus device 1510 may be mainly used in a condition in which the auto focus function using the image of the camera module 1000 is deteriorated, for example, close to 10 m or less or in a dark environment.

The autofocus device 1510 may include a light emitting unit including a vertical cavity surface emitting laser (VCSEL) semiconductor device and a light receiving unit that converts light energy such as a photodiode into electrical energy.

20 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.

For example, FIG. 20 is an external view of a vehicle including a vehicle driving assistance device to which the camera module 1000 according to an embodiment is applied.

Referring to FIG. 20 , the vehicle 700 according to the embodiment may include wheels 13FL and 13FR that rotate by a power source and a predetermined sensor. The sensor may be the camera sensor 2000, but is not limited thereto.

The camera 2000 may be a camera sensor to which the camera module 1000 according to the embodiment is applied. The vehicle 700 of the embodiment may acquire image information through a camera sensor 2000 that captures a front image or a surrounding image, and determines a lane unidentified situation using the image information and generates a virtual lane when unidentified can do.

For example, the camera sensor 2000 may acquire a front image by photographing the front of the vehicle 700 , and a processor (not shown) may obtain image information by analyzing an object included in the front image.

For example, when objects such as a median, curb, and street tree corresponding to lanes, adjacent vehicles, driving obstructions, and indirect road markings are captured in the image captured by the camera sensor 2000, the processor detects these objects Thus, it can be included in the image information. In this case, the processor may further supplement the image information by acquiring distance information from the object detected through the camera sensor 2000 .

The image information may be information about an object photographed in an image. The camera sensor 2000 may include an image sensor and an image processing module.

The camera sensor 2000 may process a still image or a moving image obtained by an image sensor (eg, CMOS or CCD).

The image processing module may process a still image or a moving image obtained through the image sensor, extract necessary information, and transmit the extracted information to the processor.

In this case, the camera sensor 2000 may include, but is not limited to, a stereo camera to improve the measurement accuracy of the object and further secure information such as the distance between the vehicle 700 and the object.

In the above, the embodiment has been mainly described, but this is only an illustration and does not limit the present invention, and those of ordinary skill in the art to which the present invention pertains are not exemplified above in the range that does not depart from the essential characteristics of the present embodiment. It can be seen that various modifications and applications are possible. For example, each component specifically shown in the embodiment can be implemented by modification. And differences related to such modifications and applications should be construed as being included in the scope of the present invention defined in the appended claims.

Claims (10)

housing;
a first member coupled to the housing;
a mover including an optical member;
a first magnetic body disposed on the first member;
a second magnetic body disposed on the mover; and
Including; a tilting guide part for guiding the tilting of the mover;
The mover includes a holder coupled to the optical member and a second member coupled to the holder,
The tilting guide unit is a camera actuator in close contact with the first member and the holder by the repulsive force of the first magnetic body and the second magnetic body.
According to claim 1,
The first member includes a first through hole and a second through hole spaced apart from the first through hole,
The second member may include a member base portion; a first extension portion positioned at an edge of the member base portion and extending toward the holder; and a second extension that is spaced apart from the first extension and extends toward the mover.
3. The method of claim 2,
The first extension passes through the first through hole,
The second extension portion is a camera actuator penetrating the second through hole.
4. The method of claim 3,
The first member is
an upper member disposed on the first through hole and the second through hole;
a lower member disposed under the first through hole and the second through hole;
a connecting member connecting the upper member and the lower member;
a first protrusion extending from one side of the upper member toward the holder; and
Including; a second protrusion extending toward the holder from the other side of the upper member;
The first extension part and the second extension part are disposed between the upper member and the lower member.
housing;
a first member coupled to the housing;
a mover including a holder;
a first magnetic body disposed on the first member;
a second magnetic body disposed on the mover; and
Including; a tilting guide part disposed between the holder and the first member;
The mover includes a second member coupled to the holder;
a portion of the first member is disposed between the second member and the holder;
The first surface of the first magnetic material and the second surface of the second magnetic material facing the first surface have the same polarity.
6. The method of claim 5,
The camera actuator is disposed so that the center of the second magnetic body and the center of the second member are different from each other.
7. The method of claim 6,
The center of the second magnetic body is located above or below the center of the second member.
8. The method of claim 7,
The area of the second magnetic body is larger than the area of the first magnetic body,
The first magnetic body is a camera actuator positioned in a virtual straight line extending both ends of the second magnetic body in the optical axis direction.
housing;
a first member coupled to the housing;
a first magnetic body disposed on the first member;
a second magnetic body corresponding to the first magnetic body;
a second member on which the second magnetic body is disposed;
a holder coupled to the second member; and
Including; a tilting guide part disposed between the holder and the first member;
a portion of the first member is disposed between the second member and the holder.
10. The method of claim 9,
The first magnetic body and the second magnetic body are opposite to each other with the same polarity.

Images