WO2017016299A1 - 一种镜头遮挡机构、方法和头戴显示器 - Google Patents

一种镜头遮挡机构、方法和头戴显示器 Download PDF

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Publication number
WO2017016299A1
WO2017016299A1 PCT/CN2016/083321 CN2016083321W WO2017016299A1 WO 2017016299 A1 WO2017016299 A1 WO 2017016299A1 CN 2016083321 W CN2016083321 W CN 2016083321W WO 2017016299 A1 WO2017016299 A1 WO 2017016299A1
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WO
WIPO (PCT)
Prior art keywords
lens
shielding
shielding piece
piece
area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/083321
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English (en)
French (fr)
Inventor
李玉胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Goertek Technology Co Ltd
Original Assignee
Qingdao Goertek Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Goertek Technology Co Ltd filed Critical Qingdao Goertek Technology Co Ltd
Priority to KR1020177036874A priority Critical patent/KR102095627B1/ko
Priority to JP2017568329A priority patent/JP6574858B2/ja
Priority to EP16829666.3A priority patent/EP3299867B1/en
Priority to US15/740,659 priority patent/US10481400B2/en
Publication of WO2017016299A1 publication Critical patent/WO2017016299A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0172—Head mounted characterised by optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0176—Head mounted characterised by mechanical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/02—Viewing or reading apparatus
    • G02B27/022—Viewing apparatus
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/095—Refractive optical elements
    • G02B27/0955—Lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/005—Diaphragms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0149—Head-up displays characterised by mechanical features
    • G02B2027/0154—Head-up displays characterised by mechanical features with movable elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B2027/0178—Eyeglass type
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. three-dimensional [3D] slide viewers

Definitions

  • the present invention relates to the field of shielding mechanisms, and in particular, to a lens shielding mechanism, a method, and a head mounted display.
  • FIG. 1 is a schematic view of a head-mounted display of the prior art.
  • 11 is a front cover of the head-mounted display
  • 12 is a lens.
  • the lens 12 is moved to the left and right to adjust the lay length, the internal structure of the product is exposed due to the positional change of the lens 12. That is, there is an exposed area, which may cause debris to enter the product through the exposed area, which affects product performance and service life, and also affects the aesthetic effect of the product.
  • the invention provides a lens shielding mechanism and a lens shielding method to solve the problem that the movement of the lens position exposes the area of the front shell, causing debris to enter the interior of the body, thereby affecting product performance, service life and aesthetic effect, and the present invention also provides a A head mounted display including the above lens blocking mechanism.
  • a lens shielding mechanism for shielding a lens from moving left and right to expose an area of a front case, the shielding mechanism comprising: a shielding piece having a certain width;
  • the set of shielding sheets are disposed on the left and right sides of the lens and are fixedly connected to the lens;
  • the set of shielding pieces are moved, and the shielding piece blocks the left and right movement of the lens to expose the area of the front case.
  • the set of shielding sheets comprises: a first shielding sheet
  • the first shielding piece is disposed on the left and right sides of the lens, and is fixedly connected to the lens;
  • the first shielding piece moves, and the first shielding piece blocks the left and right movement of the lens to expose an area of the front case.
  • the set of shielding sheets comprises: a first shielding piece and a second shielding piece connected to each other;
  • the first shielding piece is disposed on the left and right sides of the lens, and is fixedly connected to the lens;
  • the second shielding piece is disposed on the left and right sides of the first shielding piece, and the second shielding piece is connected to the front case, and is movable to the left and right with respect to the front case;
  • the first shielding piece can displace the second shielding piece when the lens moves to a certain distance from left to right, and the first shielding piece and the second shielding piece together block the left and right movement of the lens to be exposed.
  • the area of the front shell can displace the second shielding piece when the lens moves to a certain distance from left to right, and the first shielding piece and the second shielding piece together block the left and right movement of the lens to be exposed.
  • the upper portion and the lower portion of the lens are respectively disposed with two protruding columns passing through the first shielding piece to achieve a fixed connection between the first shielding piece and the lens;
  • the upper part and the lower part of the second shielding piece are respectively provided with two limiting holes that cooperate with the protruding column, and the protruding column is caught in the limiting hole and can be in the limiting hole Swipe left and right;
  • a locking member is disposed on the front casing, and an intermediate position of the upper portion and the lower portion of the second shielding member is provided with a groove that cooperates with the locking member, and the second shielding piece passes through the groove and the seat
  • the snap fastener cooperates to achieve connection with the front case
  • the protruding column on the lens slides in the limiting hole, and the second shielding piece does not move, and the first shielding
  • the sheet blocks the lens from moving left and right to expose an area of the front case
  • the protruding column drives the second shielding piece to have a length range of the groove relative to the front
  • the latching member on the casing continues to move left and right, and the dislocation of the first shielding piece and the second shielding piece expands to block the lens from moving left and right to expose the area of the front casing.
  • the first shielding piece is integrally formed with the lens.
  • the shielding piece is made of metal material or plastic material.
  • the present invention provides a head mounted display in which the above-described lens blocking mechanism of the present invention is mounted on a lens of the head mounted display.
  • the present invention further provides a lens occlusion method for blocking an area exposed by movement of a lens position, the occlusion method comprising: using a set of occlusion pieces having a certain width, the one a group of shielding sheets are disposed on the left and right sides of the lens, and are fixedly connected to the lens, so that when the lens moves left and right, the set of shielding pieces are moved, and the shielding piece blocks the left and right sides of the lens Move to expose the area of the front case.
  • the set of shielding sheets comprises: a first shielding sheet
  • the first shielding piece is disposed on the left and right sides of the lens, and is fixedly connected to the lens, so that the first shielding piece moves when the lens moves left and right, and is blocked by the first shielding piece.
  • the lens moves left and right to expose an area of the front case.
  • the set of shielding sheets comprises: a first shielding piece and a second shielding piece connected to each other;
  • the first shielding piece is disposed on the left and right sides of the lens, and is fixedly connected to the lens;
  • the second shielding piece is disposed on the left and right sides of the first shielding piece, and the second shielding piece is connected to the front case, and is movable to the left and right with respect to the front case;
  • the second shielding piece can be driven to be misaligned
  • the first shielding piece and the second shielding piece together shield the lens from moving left and right to expose an area of the front case.
  • the invention has the beneficial effects that the lens shielding mechanism and the lens blocking method provided by the technical solution of the present invention adopt a set of shielding sheets having a certain width, and the shielding shielding sheets are disposed on the left and right sides of the lens, so that when the lens is left and right When moving the adjustment of the interpupillary distance, the shielding piece can be used to block the area exposed by the lens to move left and right, thereby preventing debris from entering the housing, affecting product performance, service life and aesthetics.
  • the shielding sheet used in the invention has a small occupation volume and is low in cost compared with a large and expensive shielding mechanism.
  • the present invention also provides a head-mounted display using the lens shielding mechanism. Since the head-mounted display includes the lens shielding mechanism, the utility model has the advantages of simple structure, good shielding effect and low cost.
  • FIG. 1 is a schematic view of a prior art head mounted display
  • FIG. 2 is a schematic view showing the overall structure of a lens shielding mechanism according to an embodiment of the present invention
  • FIG. 3 is a schematic exploded view of a lens shielding mechanism according to an embodiment of the present invention.
  • FIG. 4 is a schematic view showing a structure of a first shielding piece and a lens in the lens shielding mechanism shown in FIG. 3;
  • Figure 5 is a schematic view showing the connection structure of the second shielding piece and the front case in the lens shielding mechanism shown in Figure 3;
  • Figure 6 is a front elevational view of the front housing of the lens shielding mechanism shown in Figure 3;
  • FIG. 7 is a schematic diagram showing the result of a lens shielding mechanism using a shielding piece and a two-piece shielding piece in a dislocation expansion manner according to an embodiment of the present invention
  • FIG. 8a is a schematic rear view of the lens shielding mechanism lens in an initial state in which the lens is not moved according to an embodiment of the present invention
  • Figure 8b is a front elevational view showing the lens shutter mechanism shown in Figure 8a in an initial state in which the lens is not moved;
  • FIG. 9a is a schematic rear view of the lens of the lens shielding mechanism according to an embodiment of the present invention moving to the right to the first moving position;
  • Figure 9b is a front elevational view of the lens of Figure 9a moving to the right to the first moving position;
  • FIG. 10a is a schematic rear view of the lens of the lens shielding mechanism in the rightward movement to the second moving position according to an embodiment of the present invention
  • Figure 10b is a front elevational view of the lens of Figure 10a moved to the right to a second position of movement.
  • the core idea of the present invention is: in the prior art, there is a problem that when the lens is moved to the left and right to adjust the interpupillary distance, there is a region where the front case is exposed, so that debris or the like may enter the casing, which affects the service life, performance, and appearance of the product.
  • the invention adopts a shielding piece by a shielding mechanism to block an area exposed when the lens is moved.
  • the lens shielding mechanism of the embodiment of the present invention includes: an area for shielding the lens 22 from moving left and right to expose the front case 21.
  • the shielding mechanism comprises: a shielding piece 23 having a certain width;
  • a set of shielding pieces 23 are disposed on the left and right sides of the lens 22, and are fixedly connected to the lens 22;
  • a group of shielding sheets 23 blocks the exposed area due to the left and right movement of the lens 22, thereby solving the influence of the possibility that the foreign matter may enter the casing.
  • the problem of the life and the aesthetics, and the shielding mechanism of the embodiment of the invention has the advantages of small occupied volume, large shielding area, simple structure and easy realization.
  • a set of shielding sheets includes: a first shielding piece; the first shielding piece is disposed on the left and right sides of the lens, and is fixedly connected with the lens, so that the first shielding piece is driven when the lens moves left and right Moving, the first shielding piece blocks the lens from moving left and right to expose the area of the front case.
  • one set of shielding pieces may include two first shielding pieces, and the two first shielding pieces are respectively connected with two lenses (left lens and right lens), so that both left and right lenses can be Move to adjust the interpupillary distance without the problem that the exposed area does not block the performance, service life and aesthetics.
  • the size of the first shielding piece is relatively large, so that the size of the outer casing of a relatively small and compact product such as a head-mounted display is correspondingly increased, which has the drawback of limiting the size reduction of the head-mounted display type product.
  • a set of shielding sheets may also include only one piece of the first shielding piece, that is, the first shielding piece is mounted on the left and right sides of one of the two lenses and fixed, so that the user may only move and install
  • the lens of the shielding piece moves to adjust the pupil distance to the left and right, so as to better block the area exposed when the lens moves left and right, but this arrangement can save a piece of the first shielding piece, and the cost is lower.
  • a group of shielding sheets includes: a first shielding piece 34 and a second shielding piece 35 connected to each other;
  • the first shielding piece 34 is disposed on the left and right sides of the lens 32, and is fixedly connected to the lens 32;
  • the second shielding piece 35 is disposed on the left and right sides of the first shielding piece 34, and the second shielding piece 35 is connected to the front case 31, and is movable to the left and right with respect to the front case 31;
  • the first shielding piece 34 can displace the second shielding piece 35 when the lens 32 moves to a certain distance from left to right.
  • the first shielding piece 34 and the second shielding piece 35 collectively block the lens 32 from moving left and right to expose the area of the front case 31.
  • a set of shielding sheets may include two first shielding sheets and two second shielding sheets, and two first shielding blocks.
  • the pieces are respectively connected with two lenses (left lens and right lens), and two second shielding pieces are respectively connected with two first shielding pieces, so that the left and right lenses can be moved to adjust the interpupillary distance, thereby ensuring the balance of motion. Sex, while there is no problem in the exposed area without obstruction affecting performance, service life and aesthetics.
  • a set of shielding sheets may also include only one piece of the first shielding piece and one piece of the second shielding piece, that is, one piece of the first shielding piece is mounted on the left and right sides of one of the two lenses and fixed.
  • the second shielding piece is connected with the first shielding piece, so that the user may only move the lens with the shielding piece to move the adjustment distance to the left and right, so as to better block the exposed area when the lens moves left and right.
  • this setup is cheaper.
  • FIG. 4 is a schematic view showing a first shielding piece and a lens connecting structure in the lens shielding mechanism shown in FIG. 3
  • FIG. 5 is a schematic view showing a second shielding piece and a front housing connecting structure in the lens shielding mechanism shown in FIG. 4 and FIG. 5 further illustrate the lens blocking mechanism in this embodiment:
  • the upper and lower portions of the lens 42 are respectively provided with two protruding posts 4201 passing through the first shielding piece 44, thereby achieving a fixed connection between the first shielding piece 44 and the lens 42;
  • the upper and lower portions of the second shielding piece 55 are respectively provided with two limiting holes 5501 which cooperate with the protruding post 4201.
  • the protruding post 4201 is caught in the limiting hole 5501 and can slide left and right in the limiting hole 5501;
  • the front cover 51 is provided with a latching member 5101.
  • the intermediate position of the upper and lower portions of the second shielding strip 55 is provided with a recess 5502 for engaging with the latching member 5101.
  • the second shielding strip 55 passes through the recess 5502 and the latching member 5101. Cooperating to realize the connection with the front case 51;
  • the protruding post 4201 on the lens 42 slides in the limiting hole 5501, the second shielding piece 55 does not move, and the first shielding piece 44 blocks the lens 42. Moving to expose the area of the front case 51;
  • the protruding post 4201 drives the second shielding piece 55 to extend the length of the groove 5502 relative to the locking member 5101 on the front case 51.
  • the left and right movements are continued, and the misalignment of the first shielding piece 44 and the second shielding piece 55 expands and blocks the lens 42 to move left and right to expose the area of the front case 51.
  • the display product such as a head-mounted display usually has two lenses 42, which are a left lens and a right lens respectively.
  • each lens 42 is provided with four convex portions.
  • the post 4201 has two raised posts 4201 disposed at an upper portion of the lens 42 and the other two disposed at a lower portion of the lens 42.
  • Each of the raised posts 4201 passes through the first shielding piece 44 and is inserted into the second shielding piece 55.
  • Corresponding limit hole 5501 so when the lens 42 moves to the right (here, the lens is moved to the right as an example for illustration, it can be understood that when the lens moves to the left, the principle is the same), the raised column 4201 will follow The movement of the lens 42 slides to the right in the limiting hole 5501, thereby blocking the area where the lens 42 is moved to the right by the first shielding piece 44 to expose the front case 51. During the movement of the lens 42 , the protrusion column 4201 is moved to the right to the right boundary of the limiting hole 5501. At this time, if the lens 42 is further moved to the right, the limiting hole 5501 is driven on the protruding column 4201.
  • the groove 5502 of the second shielding piece 55 is moved to the right relative to the locking member 5101. At this time, the first shielding piece 44 and the second shielding piece 55 are dislocated to dislocate to block the movement of the lens 42 to the right. The area of the front case 51 is exposed. It should be noted that the distance that the second shielding piece 55 moves to the right in this case is limited by the length of the groove 5502, that is, the distance that the lens 42 continues to move to the right depends on the length of the groove 5502.
  • FIG. 6 is a front view of the front cover of the lens shielding mechanism shown in FIG. 3, see FIG. 6, as can be seen from the front view of the front case, the lens is in the middle position, that is, the initial state of the distance adjustment is not performed yet.
  • the front case 61, the lens 62, the first shielding piece 64 provided on the left and right sides of the lens 62, and the second shielding piece 65 provided on the left and right sides of the first shielding piece 64 can be seen.
  • the front case mentioned in the embodiment of the present invention refers to a case in which a lens-equipped display product such as a head-mounted display faces the user's eyes, that is, the case closest to the user's eyes.
  • the length of the limiting hole and the groove should be reasonably designed so as to better satisfy the stroke of the left and right movement of the lens, and the size of the shielding piece in the case where the exposed area can be blocked when the distance adjustment is realized ( That is, the width of the shielding sheet is as short as possible, because the size of the shielding sheet affects the size of the housing of the production such as the head-mounted display, and now the head-mounted display has a trend of miniaturization and light weight, and thus it is preferable.
  • the size of the shielding piece is shortened by the design of the second shielding piece and the second shielding piece which are dislocated in the second embodiment. The number of the shielding sheets and the relationship between the dimensions will be specifically described below with reference to FIG.
  • FIG. 7 is a schematic diagram showing the result of a lens shielding mechanism using a shielding piece and a two-piece shielding piece in a dislocation expansion manner according to an embodiment of the present invention.
  • the left and right three small images are the most The small image on the left represents the initial state of the lens when the tilt adjustment is not performed.
  • the middle thumbnail represents the first movement position when the lens is moved to the right by a certain distance.
  • the rightmost thumbnail represents the lens continues to The second moving position when the right side moves a certain distance is indicated.
  • the first line below the three small figures of FIG. 7 indicates that the same distance is moved by using the first occlusion piece and the second occlusion piece to be dislocated.
  • the design lens can be rightward. Either moving 5 mm to the left) required size, and the positional relationship of the front cover 71, the first shielding piece 74, and the second shielding piece 75; the second line below the three small figures of Fig. 7 indicates that only one piece of occlusion is used. In the case of the sheet 76, the size and positional relationship required to move the same distance are indicated.
  • the size of the lens (the length of the lens) is the same, that is, 24.6 mm, moving to the right in the lens (here, the lens is moved to the right for illustrative explanation, it can be understood that the lens moves to the left
  • the first moving position the lens moves to the right by 2.5 mm
  • the second moving position the lens moves to the right by 5 mm
  • the first blocking piece 74 and the first block are used.
  • the two shielding sheets 75 are matched with each other, only the design of the size of 39.6 mm can meet the requirement of shielding the exposed area.
  • the lens only uses the shielding piece 76 it is necessary to design a size of 44.6 mm to meet the demand.
  • the first moving position can be referred to the state in which the protruding post 4201 is freely slidable in the limiting hole 5501.
  • the second moving position can be moved to the boundary of the limiting hole 5501 by the protruding post 4201 and then the concave portion 5502 is driven. Relative to The state in which the snap member 5101 is moved.
  • the solution of dislocation and expansion of the first shielding piece 74 and the second shielding piece 75 can save a size of 5 mm when the shielding piece 76 is used alone, so that the size of the head mounted display can also be designed to be smaller to fit.
  • the trend of miniaturization of head-mounted displays has increased the competitiveness of products.
  • the length of the lens is 24.6 mm and the distance of the lens movement is 5 mm, which is only a schematic description.
  • the shielding piece should be reasonably designed according to the size of the lens and the stroke of the left and right movement of the lens.
  • the fitting size is not limited to 39.6 mm in the present embodiment.
  • FIG. 5 is a view from the back side of the shielding piece in a direction away from the user's eyes.
  • Figs. 6 and 7 are views seen from the front case toward the user's eyes.
  • FIG. 8a is a schematic rear view of the lens shielding mechanism lens in an initial state in which the lens shielding mechanism does not move
  • FIG. 8b is a front view of the lens shielding mechanism lens shown in FIG. 8a in an initial state
  • FIG. One embodiment provides a rear view of the lens of the lens shielding mechanism moving to the right to the first moving position
  • FIG. 9b is a front view of the lens shown in FIG. 9a moving to the right to the first moving position
  • FIG. A rear view of the lens of the lens shielding mechanism according to an embodiment is moved to the right to the second moving position
  • FIG. 10b is a front view of the lens shown in FIG. 10a moving to the right to the second moving position.
  • Fig. 8a is a schematic rear view of the lens in an initial state in which the lens is not moved. It can be seen from Fig. 8a that the lens has not been moved left and right in the initial state, and the protruding post 4201 is caught in the middle of the limiting hole 5501. The positional relationship of the lens 42, the first shielding piece 44 and the second shielding piece 55 can be seen from the front view of the front case provided in Fig. 8b. Then, the lens starts to move to the right to adjust the pupil distance. Referring to FIG.
  • the lens moves a certain distance from the first shielding piece, and the lens protrusion column 4201 is freely moved in the limiting hole 5501 of the second shielding piece.
  • the lens drives the raised post 4201 to move to the rightmost limit position of the limiting hole 5501.
  • the second shielding piece is stationary, and the first shielding piece blocks the area where the front case is exposed because the lens moves.
  • Fig. 9b the lens 42 is moved to the right, and the first shutter 44 is moved to the right following the lens 42 (which can be regarded as pulling the side wall of the first shutter) to block the lens 42 from moving to the right to expose the exposed area.
  • Figure 10a is a schematic view showing the rear side of the lens moving to the right to the second moving position.
  • the lens continues to move to the right after reaching the first moving position, and the raised column 4201 drives the second blocking piece to start.
  • the lens 42 , the first light shielding sheet 44 , and the second light shielding sheet 45 move to the right together, and the first shielding sheet 44 and the second shielding sheet 45 are dislocated to expand the area where the lens 42 is moved to the right to be exposed.
  • the lens 42 is moved to the right, and the first shielding piece 44 and the second shielding piece 55 are exposed more laterally than the exposed side in FIG. 9b, because the lens is moved to the right than the lens in FIG. 9b.
  • the distance of the movement is far, and the first occlusion piece and the second occlusion piece are required to be dislocated to cover the area where the lens is moved to the right to be exposed.
  • the shielding mechanism of the embodiment of the present invention has the advantages of small occupied volume, shielding area meeting design requirements, and simple and easy to implement structure.
  • the first shielding piece is integrally formed with the lens, and the integrally formed structure facilitates mass production and enhances the firmness of the product.
  • the material of the shielding piece is made of metal material or plastic material.
  • the use of a metal or plastic shielding sheet can save the cost of the lens shielding mechanism of the embodiment of the present invention and improve the competitiveness of the product.
  • a set of shielding pieces including a first shielding piece and a second shielding piece are taken as an example. In other embodiments of the present invention, a set of shielding pieces may also be used. Including a plurality of shielding sheets, more of the shielding sheets are dislocated to each other to block the movement of the lens to the left and right to expose the area of the front housing.
  • the implementation principle is the same as that of the second embodiment, and details are not described herein again.
  • the present invention provides a head mounted display in which the above-described lens blocking mechanism of the present invention is mounted on a lens of the head mounted display.
  • the present invention further provides a lens occlusion method for blocking an area exposed by movement of a lens position, the occlusion method comprising: using a set of occlusion pieces having a certain width;
  • a set of shielding pieces are arranged on the left and right sides of the lens, and are fixedly connected with the lens, so that when the lens moves left and right, a group of shielding pieces are moved, and a group of shielding pieces block the lens from moving left and right to expose the area of the front case.
  • a set of shielding sheets comprises: a first shielding sheet
  • the first shielding piece is disposed on the left and right sides of the lens, and is fixedly connected with the lens, so that the first shielding piece moves when the lens moves left and right, and the first shielding piece blocks the lens from moving left and right to expose the area of the front case.
  • a set of shielding sheets includes: a first shielding piece and a second shielding piece connected to each other; the first shielding piece is disposed on the left and right sides of the lens, and is fixedly connected to the lens;
  • the second shielding piece is disposed on the left and right sides of the first shielding piece, and the second shielding piece is connected to the front case, and is movable to the left and right with respect to the front case; when the first shielding piece moves to a certain distance from the left and right sides of the lens, the first shielding piece can be driven
  • the second shielding piece is misaligned, and the first shielding piece and the second shielding piece jointly block the left and right movement of the lens to expose the area of the front case.
  • the lens occlusion method of the present invention is corresponding to the lens occlusion mechanism described above. Therefore, the implementation steps of the lens occlusion method in this embodiment can be referred to the specific description of the lens occlusion mechanism portion, and details are not described herein. .
  • the lens shielding mechanism and the lens blocking method provided by the embodiments of the present invention have the following advantages:
  • a set of shielding sheets includes a first shielding piece and a second shielding piece
  • the volume occupied by the shielding mechanism can be reduced, so that the lens shielding mechanism is The overall size of the machine has little or no effect.
  • the lens shielding mechanism of the embodiment of the invention is simple to implement, convenient to manufacture, and low in cost.
  • the present invention also provides a head mounted display. Since the head mounted display includes the lens shielding mechanism provided by the present invention, the head mounted display also has the above advantages, improving the user experience and product of the head mounted display. Competitiveness.

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Abstract

一种镜头遮挡机构、镜头遮挡方法和利用上述镜头遮挡机构的头戴显示器，镜头遮挡机构用于遮挡镜头（22）左右移动而露出前壳（21）的区域，遮挡机构包括：具有一定宽度的一组遮挡片（23）；所述一组遮挡片（23）设在镜头（22）的左右两侧边，并与镜头(22)固定连接；镜头(22)左右移动时带动所述一组遮挡片(23)移动，由所述一组遮挡片(23)遮挡镜头(22)左右移动而露出前壳(21)的区域。所述镜头遮挡机构具有良好的遮蔽效果并且结构简单、占用空间小。

Description

一种镜头遮挡机构、方法和头戴显示器 技术领域
本发明涉及遮挡机构技术领域，具体涉及一种镜头遮挡机构、方法和头戴显示器。
发明背景
通常每个用户的瞳距都不是完全一样的，因而在可佩戴式显示器及其他一些显示类产品(例如头戴显示器)上为适应不同用户的瞳距需要调节镜头的位置，以更加方便用户使用，满足用户的个性化使用需求。图1是现有技术的头戴显示器示意图，图1中，11是头戴显示器的前壳，12是镜头，当镜头12左右移动调节瞳距时，由于镜头12位置变动而露出产品的内部结构，即存在一个露出的区域，这可能导致杂物通过露出的区域进入产品内部而影响产品性能和使用寿命，同时也影响产品的美观效果。
发明内容
本发明提供了一种镜头遮挡机构和镜头遮挡方法以解决镜头位置移动露出前壳的区域造成杂物进入机体内部而影响产品性能、使用寿命和美观效果的问题，此外本发明还提供了一种包括上述镜头遮挡机构的头戴显示器。
为了实现上述目的，本发明的技术方案是这样实现的：
根据本发明的一个方面，提供了一种镜头遮挡机构，用于遮挡镜头左右移动而露出前壳的区域，所述遮挡机构包括：具有一定宽度的一组遮挡片；
所述一组遮挡片设在镜头的左右两侧边，并与镜头固定连接；
镜头左右移动时带动所述一组遮挡片移动，由所述一组遮挡片遮挡镜头左右移动而露出前壳的区域。
可选地，所述一组遮挡片包括：第一遮挡片；
所述第一遮挡片设在所述镜头的左右两侧边，并与所述镜头固定连接；
所述镜头左右移动时带动所述第一遮挡片移动，由所述第一遮挡片遮挡所述镜头左右移动而露出前壳的区域。
可选地，所述一组遮挡片包括：相互连接的第一遮挡片和第二遮挡片；
所述第一遮挡片设在所述镜头的左右两侧边，并与所述镜头固定连接；
所述第二遮挡片设在所述第一遮挡片的左右两侧边，且所述第二遮挡片与所述前壳连接，能够相对于所述前壳左右移动；
所述第一遮挡片在所述镜头左右移动到一定距离时能够带动所述第二遮挡片错位展开，由所述第一遮挡片和所述第二遮挡片共同遮挡所述镜头左右移动而露出前壳的区域。
可选地，所述镜头的上部和下部各设置有穿过所述第一遮挡片的两个凸起柱，实现所述第一遮挡片与镜头的固定连接；
所述第二遮挡片的上部和下部各设置有两个与所述凸起柱相配合的限位孔，所述凸起柱卡在所述限位孔内并能在所述限位孔内左右滑动；
所述前壳上设置有卡扣件，所述第二遮挡片的上部和下部的中间位置设置有与所述卡扣件配合的凹槽，所述第二遮挡片通过所述凹槽与所述卡扣件配合实现与所述前壳的连接；
当所述镜头左右移动的距离小于所述限位孔的长度时，所述镜头上的凸起柱在所述限位孔内滑动，所述第二遮挡片不动，由所述第一遮挡片遮挡所述镜头左右移动而露出前壳的区域；
当所述镜头左右移动并带动所述凸起柱移动到所述限位孔的极限位置时，所述凸起柱带动所述第二遮挡片在所述凹槽的长度范围相对于所述前壳上的卡扣件继续左右移动，由所述第一遮挡片和第二遮挡片的错位展开遮挡所述镜头左右移动而露出前壳的区域。
可选地，所述第一遮挡片与所述镜头一体形成。
可选地，所述遮挡片的材质为金属材质或者塑料材质。
此外，本发明还提供了一种头戴显示器，头戴显示器的镜头上安装有本发明上述的镜头遮挡机构。
与上述镜头遮挡机构相对应的，本发明还提供了一种镜头遮挡方法，用于遮挡镜头位置移动而露出的区域，该遮挡方法包括：利用具有一定宽度的一组遮挡片，将所述一组遮挡片设在所述镜头的左右两侧边，并与所述镜头固定连接，使得所述镜头左右移动时带动所述一组遮挡片移动，由所述一组遮挡片遮挡所述镜头左右移动而露出前壳的区域。
可选地，所述一组遮挡片包括：第一遮挡片；
将所述第一遮挡片设在所述镜头的左右两侧边，并与所述镜头固定连接，使得所述镜头左右移动时带动所述第一遮挡片移动，由所述第一遮挡片遮挡所述镜头左右移动而露出前壳的区域。
可选地，所述一组遮挡片包括：相互连接的第一遮挡片和第二遮挡片；
将所述第一遮挡片设在所述镜头的左右两侧边，并与所述镜头固定连接；
将所述第二遮挡片设在所述第一遮挡片的左右两侧边，且所述第二遮挡片与所述前壳连接，能够相对于所述前壳左右移动；
当所述第一遮挡片在所述镜头左右移动到一定距离时能够带动所述第二遮挡片错位展 开，由所述第一遮挡片和所述第二遮挡片共同遮挡所述镜头左右移动而露出前壳的区域。
本发明的有益效果是：本发明技术方案提供的镜头遮挡机构和镜头遮挡方法采用具有一定宽度的一组遮挡片，将该一组遮挡片设在镜头的左右两侧边，这样，当镜头左右移动调节瞳距时，可以由该一组遮挡片来遮挡镜头左右移动而露出的区域，从而防止杂物进入壳体，影响产品性能、使用寿命和以及美观效果。并且，本发明采用的遮挡片，占用体积小、与较大且昂贵的遮挡机构相比，成本低廉。此外，本发明还提供了采用这种镜头遮挡机构的头戴显示器，由于该头戴显示器包括有上述镜头遮挡机构，因而也具有结构简单、遮挡效果好，成本低的有益效果。
附图简要说明
图1是现有技术的头戴显示器示意图；
图2是本发明一个实施例的一种镜头遮挡机构的整体结构示意图；
图3是本发明一个实施例的一种镜头遮挡机构的爆炸结构示意图；
图4是图3所示的镜头遮挡机构中的第一遮挡片与镜头连接结构示意图；
图5是图3所示的镜头遮挡机构中的第二遮挡片与前壳连接结构示意图；
图6是图3所示的镜头遮挡机构中前壳正面示意图；
图7是本发明一个实施例提供的镜头遮挡机构采用一片遮挡片与采用两片遮挡片错位展开方式遮挡的结果示意图；
图8a是本发明一个实施例提供的镜头遮挡机构镜头没有移动的初始状态下的背面示意图；
图8b是图8a所示镜头遮挡机构镜头没有移动的初始状态下的正面示意图；
图9a是本发明一个实施例提供的镜头遮挡机构的镜头在向右移动到第一移动位置下的背面示意图；
图9b是图9a所示镜头在向右移动到第一移动位置下的正面示意图；
图10a是本发明一个实施例提供的镜头遮挡机构的镜头在向右移动到第二移动位置下的背面示意图；
图10b是图10a所示镜头在向右移动到第二移动位置下的正面示意图。
具体实施方式
本发明的核心思想是：针对现有技术中，存在镜头左右移动调节瞳距时会存在露出前壳的区域而导致杂物等可能进入壳体，影响产品使用寿命、性能以及美观的问题，本发明通过遮挡机构采用一组遮挡片来遮挡镜头移动位置时露出的区域。
图2是本发明一个实施例的一种镜头遮挡机构的整体结构示意图，参见图2，本发明一个实施例的这种镜头遮挡机构包括：用于遮挡镜头22左右移动而露出前壳21的区域，遮挡机构包括：具有一定宽度的一组遮挡片23；
一组遮挡片23设在镜头22的左右两侧边，并与镜头22固定连接；
镜头22左右移动时带动一组遮挡片23移动，由一组遮挡片23遮挡镜头22左右移动而露出前壳21的区域。
由此，通过图2所示的镜头遮挡机构，在镜头22左右移动时，由一组遮挡片23来遮挡由于镜头22左右移动而露出的区域，解决了杂物可能进入壳体的影响产品性能寿命以及美观的问题，并且本发明实施例的这种遮挡机构具有占用体积小，遮蔽区域大，结构简单易实现的优点。
实施例一
在本发明的一个实施例中，一组遮挡片包括：第一遮挡片；将第一遮挡片设在镜头的左右两侧边，并与镜头固定连接，使得镜头左右移动时带动第一遮挡片移动，由第一遮挡片遮挡镜头左右移动而露出前壳的区域。也就是说，在本实施例中，一组遮挡片可以包括两片第一遮挡片，两片第一遮挡片分别与两个镜头(左镜头和右镜头)连接，这样左、右镜头都可以移动以调节瞳距同时又不会出现露出区域没有遮挡影响性能、使用寿命和美观的问题。但是这种情况下，第一遮挡片的尺寸会相对较大进而使得头戴显示器等比较小巧精细的产品的外壳尺寸也会相应增大，具有限制头戴显示器类产品尺寸缩小的缺陷。
此外，在本实施例中，一组遮挡片也可以只包括一片第一遮挡片，即将第一遮挡片安装在两个镜头的其中一个的左右两边并固定，这样，用户可能只能移动安装有遮挡片的那个镜头来左右移动调节瞳距，才能更好的遮挡住镜头左右移动时露出的区域，不过这样设置可以节省一片第一遮挡片，成本更加低廉。
实施例二
图3是本发明一个实施例的一种镜头遮挡机构的爆炸结构示意图，参见图3，本实施例中，一组遮挡片包括：相互连接的第一遮挡片34和第二遮挡片35；
第一遮挡片34设在镜头32的左右两侧边，并与镜头32固定连接；
第二遮挡片35设在第一遮挡片34的左右两侧边，且第二遮挡片35与前壳31连接，能够相对于前壳31左右移动；
第一遮挡片34在镜头32左右移动到一定距离时能够带动第二遮挡片35错位展开，由第一遮挡片34和第二遮挡片35共同遮挡镜头32左右移动而露出前壳31的区域。
在本实施例中，一组遮挡片可以包括两片第一遮挡片和两片第二遮挡片，两片第一遮挡 片分别与两个镜头(左镜头和右镜头)连接，两片第二遮挡片分别与两片第一遮挡片连接，这样左、右镜头都可以移动以调节瞳距，既保证了运动的平衡性，同时又不会出现露出区域没有遮挡影响性能、使用寿命和美观的问题。此外，与实施例一中相同的方式，一组遮挡片也可以只包括一片第一遮挡片和一片第二遮挡片，即将一片第一遮挡片安装在两个镜头的其中一个的左右两边并固定，将一片第二遮挡片与该一片第一遮挡片连接，这样，用户可能只能移动安装有遮挡片的那个镜头来左右移动调节瞳距，才能更好的遮挡住镜头左右移动时露出的区域，不过这样设置成本更加低廉。
图4是图3所示的镜头遮挡机构中的第一遮挡片与镜头连接结构示意图，图5是图3所示的镜头遮挡机构中的第二遮挡片与前壳连接结构示意图，以下结合图4和图5对本实施例中的镜头遮挡机构进行进一步说明：
参见图4和图5，在本实施例中，镜头42的上部和下部各设置有穿过第一遮挡片44的两个凸起柱4201，实现第一遮挡片44与镜头42的固定连接；
第二遮挡片55的上部和下部各设置有两个与凸起柱4201相配合的限位孔5501，凸起柱4201卡在限位孔5501内并能在限位孔5501内左右滑动；
前壳51上设置有卡扣件5101，第二遮挡片55的上部和下部的中间位置设置有与卡扣件5101配合的凹槽5502，第二遮挡片55通过凹槽5502与卡扣件5101配合实现与前壳51的连接；
当镜头42左右移动的距离小于限位孔5501的长度时，镜头42上的凸起柱4201在限位孔5501内滑动，第二遮挡片55不动，由第一遮挡片44遮挡镜头42左右移动而露出前壳51的区域；
当镜头42左右移动并带动凸起柱4201移动到限位孔5501的极限位置时，凸起柱4201带动第二遮挡片55在凹槽5502的长度范围相对于前壳51上的卡扣件5101继续左右移动，由第一遮挡片44和第二遮挡片55的错位展开遮挡镜头42左右移动而露出前壳51的区域。
具体的，在本实施例中，通常头戴显示器等显示产品有两个镜头42，分别是左镜头和右镜头，为了保持运动过程中的平衡性，每个镜头42上都设置有4个凸起柱4201，其中两个凸起柱4201设置在镜头42的上部，另外两个设置在镜头42的下部，每个凸起柱4201都穿过第一遮挡片44，卡进第二遮挡片55的对应的限位孔5501里，这样当镜头42向右移动时(这里，以镜头向右移动为例进行说明，可以理解，镜头向左移动时，原理相同)，凸起柱4201会随着镜头42的移动而在限位孔5501内向右滑动，从而利用第一遮挡片44来遮挡镜头42向右移动而露出前壳51的区域。当镜头42移动过程中，使得凸起柱4201向右移动到限位孔5501的右边界，此时，如果继续向右移动镜头42，在凸起柱4201带动限位孔5501 的作用下，第二遮挡片55的凹槽5502会相对于卡扣件5101向右移动，这时，第一遮挡片44和第二遮挡片55错位展开，以遮挡镜头42向右移动过程中露出前壳51的区域。需要说明的是，这种情况下第二遮挡片55向右移动的距离受限于凹槽5502的长度，也就是说镜头42继续向右移动的距离取决于凹槽5502的长度。
图6是图3所示的镜头遮挡机构中前壳正面示意图，参见图6，从前壳的正面示意图可以看出，镜头位于中间位置，即还没有进行左右移动进行瞳距调节的初始状态，从图6中，可以看到前壳61、镜头62、设置在镜头62左右两侧边的第一遮挡片64以及设置在第一遮挡片64左右两侧边的第二遮挡片65。本发明实施例中所提到的前壳是指头戴显示器等带镜头的显示产品面对用户眼睛的那一外壳，即距离用户眼睛最近的那个外壳。
另外，在实际应用时，应当合理设计限位孔以及凹槽的长度，这样才能更好的满足镜头左右移动的行程，在能够实现瞳距调节时遮挡露出区域的情况下，遮挡片的尺寸(即遮挡片的宽度)越短越好，因为遮挡片的尺寸会影响到头戴显示器这类产片的壳体的尺寸，如今头戴显示器存在小型化和轻便化的发展趋势下，因而优选的，本发明实施例中以实施例二的这种通过第一遮挡片和第二遮挡片错位展开的设计来缩短遮挡片的尺寸。以下结合附图7对遮挡片的数量以及尺寸间关系进行具体说明。
图7是本发明一个实施例提供的镜头遮挡机构采用一片遮挡片与采用两片遮挡片错位展开方式遮挡的结果示意图，参见图7，在图7中分左中右三幅小图，其中最左边的那副小图代表镜头没有进行瞳距调整时的初始状态示意，中间的那副小图代表镜头向右移动一定距离时的第一移动位置示意，最右边那副小图代表镜头继续向右移动一定距离时的第二移动位置示意。参见图7，图7的三幅小图下面的第一行内容，表示在采用第一遮挡片和第二遮挡片错位展开配合下，移动同样的距离(本实施例中是设计镜头可以向右或者向左移动5毫米)需要的尺寸，以及前壳71、第一遮挡片74、第二遮挡片75位置关系示意；图7的三幅小图下面的第二行内容，表示只采用一片遮挡片76的情况下，移动同样的距离需要的尺寸和位置关系示意。参见图7，假设两种情况下，镜头的大小(镜头的长度)是一样的即都是24.6毫米，在镜头向右移动(这里以镜头向右移动进行示意性说明，可以理解镜头向左移动时，原理相同)进行瞳距调节时移动到第一移动位置(镜头向右移动2.5毫米)并进而移动到第二移动位置(镜头向右移动5毫米)下，采用第一遮挡片74和第二遮挡片75相互配合的方案时，只需要设计39.6毫米的尺寸就能够满足遮挡露出区域的需求。而为了遮挡同样大的区域，如果镜头只采用遮挡片76，那么就需要设计44.6毫米的尺寸才能满足需求。
这里的第一移动位置可以参见前述凸起柱4201在限位孔5501内自由滑动的状态，第二移动位置可以参见前述的凸起柱4201移动到限位孔5501的边界并进而带动凹糟5502相对于 卡扣件5101移动的状态。
很明显，采用第一遮挡片74和第二遮挡片75错位展开的方案比单独采用遮挡片76时可以节省尺寸5毫米，这样相对的，头戴显示器的尺寸也可以设计的小一些，以适应头戴显示器小型化的发展趋势，提高产品的竞争力。此外，本实施例中，镜头的长度24.6毫米以及镜头移动的距离5毫米只是示意性的说明，在本发明的其他实施例中，应当根据镜头的大小以及镜头左右移动的行程合理设计遮挡片的配合尺寸，不限于本实施例中的39.6毫米。
需要说明的是，本发明实施例中提供了多幅附图，这些附图从不同的方向描述了本发明实施例的遮挡机构的结构和效果。在多幅附图中是以同一个头戴显示器的两个方向进行的说明，因而，附图中用到的向左/右这样的移动方向，在理解时需要注意向左/右的参照物。例如，本发明实施例的图5所示遮挡片向右移动与图6、图7所示遮挡片向右移动，虽用语上同为向右移动但实际上两者却不是同一个方向，而是两个相反的方向，图5是从遮挡片的背面向远离用户眼睛这个方向看而得到的视图，图6、图7是从前壳向靠近用户眼睛这个方向看而得到的视图。
图8a是本发明一个实施例提供的镜头遮挡机构镜头没有移动的初始状态下的背面示意图；图8b是图8a所示镜头遮挡机构镜头没有移动的初始状态下的正面示意图；图9a是本发明一个实施例提供的镜头遮挡机构的镜头在向右移动到第一移动位置下的背面示意图；图9b是图9a所示镜头在向右移动到第一移动位置下的正面示意图；图10a是本发明一个实施例提供的镜头遮挡机构的镜头在向右移动到第二移动位置下的背面示意图；图10b是图10a所示镜头在向右移动到第二移动位置下的正面示意图。
参见图8a-图10b，以下结合镜头的移动位置对本发明实施例的这种镜头遮挡机构运动过程进行说明。图8a是镜头没有移动的初始状态下的背面示意图，从图8a可以看出初始状态下，镜头还没有进行左右移动，凸起柱4201卡在限位孔5501的中间位置。从图8b提供的前壳的正面示意图可以看出，镜头42、第一遮挡片44和第二遮挡片55的位置关系。然后，镜头开始向右移动以调节瞳距，参见图9a，镜头与第一遮挡片移动一定距离，镜头凸起柱4201在第二遮挡片的限位孔5501内自由运动。镜头带动凸起柱4201移动到限位孔5501的最右边的界限位置。此时第二遮挡片是不动的，由第一遮挡片来遮挡因为镜头移动而露出前壳的区域。参见图9b，镜头42向右移动，第一遮挡片44跟随镜头42向右移动(可看作把第一遮挡片的侧壁拉出)以遮挡镜头42向右移动露出的区域。图10a示意出了镜头在向右移动到第二移动位置下的背面示意图，在图9a的基础上，镜头达到第一移动位置后继续向右移动，凸起柱4201带动第二遮挡片开始向右移动，此时镜头42、第一遮光片44、第二遮光片45一起向右移动，由第一遮挡片44和第二遮挡片45错位展开来遮挡镜头42向右移动而露出的区域。 具体的参见图10b，镜头42向右移动，第一遮挡片44和第二遮挡片55露出的侧边比图9b中露出的侧边多，这是因为镜头向右移动的比图9b中镜头移动的距离远，才需要第一遮挡片和第二遮挡片错位展开来遮挡镜头向右移动而露出的区域。
以上介绍了本发明实施例的镜头遮挡机构的工作过程，从上述过程可以看出，本发明实施例的这种遮挡机构具有占用体积小，遮蔽区域满足设计需要，结构简单易实现的优点。
在本实施例中，第一遮挡片与镜头一体形成，这种一体形成的结构方便批量化生产也增强了产品的坚固程度。
在本实施例中，遮挡片的材质为金属材质或者塑料材质。采用金属材质或塑料材质的遮挡片可以节省本发明实施例的这种镜头遮挡机构的成本，提高产品的竞争力。
需要说明的是，本发明实施例二中是以一组遮挡片包括第一遮挡片和第二遮挡片为例进行的示意性说明，在本发明的其他实施例中，一组遮挡片还可以包括更多的遮挡片，更多的遮挡片之间相互错位展开以遮挡镜头左右移动而露出前壳的区域，实现原理与上述实施例二相同，在此不再赘述。
此外，本发明还提供了一种头戴显示器，头戴显示器的镜头上安装有本发明上述的镜头遮挡机构。
并且，与上述镜头遮挡机构相对应的，本发明还提供了一种镜头遮挡方法，用于遮挡镜头位置移动而露出的区域，该遮挡方法包括：利用具有一定宽度的一组遮挡片；
将一组遮挡片设在镜头的左右两侧边，并与镜头固定连接，使得镜头左右移动时带动一组遮挡片移动，由一组遮挡片遮挡镜头左右移动而露出前壳的区域。
在本发明的一个实施例中，一组遮挡片包括：第一遮挡片；
将第一遮挡片设在镜头的左右两侧边，并与镜头固定连接，使得镜头左右移动时带动第一遮挡片移动，由第一遮挡片遮挡镜头左右移动而露出前壳的区域。
在本发明的另一个实施例中，一组遮挡片包括：相互连接的第一遮挡片和第二遮挡片；将第一遮挡片设在镜头的左右两侧边，并与镜头固定连接；
将第二遮挡片设在第一遮挡片的左右两侧边，且第二遮挡片与前壳连接，能够相对于前壳左右移动；当第一遮挡片在镜头左右移动到一定距离时能够带动第二遮挡片错位展开，由第一遮挡片和所述第二遮挡片共同遮挡镜头左右移动而露出前壳的区域。
需要说明的是，本发明的这种镜头遮挡方法是和前述的镜头遮挡机构相对应的，因而本实施例中镜头遮挡方法的实现步骤可以参见前述镜头遮挡机构部分的具体说明，这里不再赘述。
综上所述，本发明实施例提供的这种镜头遮挡机构和镜头遮挡方法，具有如下优点：
1.避免镜头移动后露出内部结构，影响美观及外部灰尘进入或用户手指等伸入破坏产品内部结构，影响使用寿命和产品美观等问题。
2.在一组遮挡片包括第一遮挡片和第二遮挡片的情况下，利用第一遮挡片和第二遮挡片的相互配合，能够缩小遮挡机构所占用的体积，使得该镜头遮挡机构对整机尺寸影响小或基本无影响。
3.本发明实施例的这种镜头遮挡机构实现简单，制作方便，成本低廉。
另外，本发明还提供了一种头戴显示器，由于该头戴显示器包括了本发明提供的这种镜头遮挡机构，所以该头戴显示器也具有上述优点，提高了头戴显示器的用户体验以及产品的竞争力。
以上所述仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。凡在本发明的精神和原则之内所作的任何修改、等同替换、改进等，均包含在本发明的保护范围内。

Claims (10)

  1. 一种镜头遮挡机构，用于遮挡所述镜头左右移动而露出前壳的区域，其特征在于，所述遮挡机构包括：具有一定宽度的一组遮挡片；
    所述一组遮挡片设在所述镜头的左右两侧边，并与所述镜头固定连接；
    所述镜头左右移动时带动所述一组遮挡片移动，由所述一组遮挡片遮挡所述镜头左右移动而露出前壳的区域。
  2. 如权利要求1所述的镜头遮挡机构，其特征在于，所述一组遮挡片包括：第一遮挡片；
    所述第一遮挡片设在所述镜头的左右两侧边，并与所述镜头固定连接；
    所述镜头左右移动时带动所述第一遮挡片移动，由所述第一遮挡片遮挡所述镜头左右移动而露出前壳的区域。
  3. 如权利要求1所述的镜头遮挡机构，其特征在于，所述一组遮挡片包括：相互连接的第一遮挡片和第二遮挡片；
    所述第一遮挡片设在所述镜头的左右两侧边，并与所述镜头固定连接；
    所述第二遮挡片设在所述第一遮挡片的左右两侧边，且所述第二遮挡片与所述前壳连接，能够相对于所述前壳左右移动；
    所述第一遮挡片在所述镜头左右移动到一定距离时能够带动所述第二遮挡片错位展开，由所述第一遮挡片和所述第二遮挡片共同遮挡所述镜头左右移动而露出前壳的区域。
  4. 如权利要求3所述的镜头遮挡机构，其特征在于，所述镜头的上部和下部各设置有穿过所述第一遮挡片的两个凸起柱，实现所述第一遮挡片与镜头的固定连接；
    所述第二遮挡片的上部和下部各设置有两个与所述凸起柱相配合的限位孔，所述凸起柱卡在所述限位孔内并能在所述限位孔内左右滑动；
    所述前壳上设置有卡扣件，所述第二遮挡片的上部和下部的中间位置设置有与所述卡扣件配合的凹槽，所述第二遮挡片通过所述凹槽与所述卡扣件配合实现与所述前壳的连接；
    当所述镜头左右移动的距离小于所述限位孔的长度时，所述镜头上的凸起柱在所述限位孔内滑动，所述第二遮挡片不动，由所述第一遮挡片遮挡所述镜头左右移动而露出前壳的区域；
    当所述镜头左右移动并带动所述凸起柱移动到所述限位孔的极限位置时，所述凸起柱带动所述第二遮挡片在所述凹槽的长度范围相对于所述前壳上的卡扣件继续左右移动，由所述第一遮挡片和第二遮挡片的错位展开遮挡所述镜头左右移动而露出前壳的区域。
  5. 如权利要求2或3所述的镜头遮挡机构，其特征在于，所述第一遮挡片与所述镜头一 体形成。
  6. 如权利要求1-5任一项所述的镜头遮挡机构，其特征在于，所述遮挡片的材质为金属材质或者塑料材质。
  7. 一种头戴显示器，其特征在于，所述头戴显示器的镜头上安装有权利要求1-6任一项所述的镜头遮挡机构。
  8. 一种镜头遮挡方法，用于遮挡镜头位置移动而露出的区域，其特征在于，该遮挡方法包括：利用具有一定宽度的一组遮挡片，将所述一组遮挡片设在所述镜头的左右两侧边，并与所述镜头固定连接，使得所述镜头左右移动时带动所述一组遮挡片移动，由所述一组遮挡片遮挡所述镜头左右移动而露出前壳的区域。
  9. 如权利要求8所述的镜头遮挡方法，其特征在于，所述一组遮挡片包括：第一遮挡片；
    将所述第一遮挡片设在所述镜头的左右两侧边，并与所述镜头固定连接，使得所述镜头左右移动时带动所述第一遮挡片移动，由所述第一遮挡片遮挡所述镜头左右移动而露出前壳的区域。
  10. 如权利要求8所述的镜头遮挡方法，其特征在于，所述一组遮挡片包括：相互连接的第一遮挡片和第二遮挡片；
    将所述第一遮挡片设在所述镜头的左右两侧边，并与所述镜头固定连接；
    将所述第二遮挡片设在所述第一遮挡片的左右两侧边，且所述第二遮挡片与所述前壳连接，能够相对于所述前壳左右移动；
    当所述第一遮挡片在所述镜头左右移动到一定距离时能够带动所述第二遮挡片错位展开，由所述第一遮挡片和所述第二遮挡片共同遮挡所述镜头左右移动而露出前壳的区域。
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