Lens module and light shielding structure

Abstract

The present disclosure provides a lens module and a light shielding structure. The light shielding structure includes a light shielding plate, a double-sided tape and a black film. The double-sided tape is attached to the upper surface of the light shielding plate. The black film is attached to the upper surface of the double-sided tape. The projection area of the black film on the double-sided tape is smaller than the double-sided tape. The outer edge of the black film and the outer edge of the double-sided tape maintain a distance.

Description

Technical Field

[0001] This disclosure relates to an optical structure. Background Technology

[0002] In a periscope lens module, light can travel through the lens path formed by one or more lenses to the image sensor. Therefore, to achieve lens path switching, a light-blocking element can be installed inside the periscope lens module to block the unselected lens path. Generally, the movement of this light-blocking element relies on the drive of a mechanism. However, if lubricant is applied between the mechanisms to address issues with smooth sliding, the lubricant may seep out from the mechanisms and diffuse onto the surface of the light-blocking element. This results in noticeable impurities or deterioration on the surface of the light-blocking element, with uneven coloring, visible to the user from outside the lens, negatively impacting the user's overall visual experience of the product. Summary of the Invention

[0003] In view of this, the present disclosure provides a light-shielding structure comprising a light-shielding plate, double-sided adhesive tape, and a blackened film. The double-sided adhesive tape is attached to the upper surface of the light-shielding plate. The blackened film is attached to the upper surface of the double-sided adhesive tape, the projected area of ​​the blackened film on the double-sided adhesive tape is smaller than that of the double-sided adhesive tape, and the outer edge of the blackened film maintains a first distance from the outer edge of the double-sided adhesive tape. Accordingly, according to some embodiments, the blackened film can be used to block and absorb ambient light entering the lens module through the lens, making the light-shielding structure appear uniformly black when observed from outside the lens. Furthermore, the first distance prevents lubricating oil applied between the light-shielding structure and surrounding components from diffusing to the surface of the blackened film and contaminating it.

[0004] According to some embodiments, the light-shielding plate has wing-shaped protrusions on its left and right sides, which are suitable for being disposed in the guide groove to limit the displacement of the light-shielding plate and allow the light-shielding plate to slide linearly along the extension direction of the guide groove.

[0005] According to some embodiments, the contact surfaces of the wing-shaped protrusion and the guide groove are coated with lubricating oil.

[0006] According to some embodiments, the lubricant is selected from the group consisting of silicone oil, mineral oil, aliphatic oil, and combinations thereof.

[0007] According to some embodiments, the double-sided tape includes a first adhesive surface and a second adhesive surface, the outer edge of the black-plated film and the outer edge of the double-sided tape maintain a first distance to form an exposure range of the double-sided tape, and lubricating oil penetrates into the double-sided tape area within the exposure range.

[0008] According to some embodiments, the left outer edge of the black-plated film maintains a first distance from the left outer edge of the double-sided tape to form a first exposure area of ​​the double-sided tape, and the right outer edge of the black-plated film maintains a first distance from the right outer edge of the double-sided tape to form a second exposure area of ​​the double-sided tape.

[0009] According to some embodiments, the light-shielding structure includes at least one block disposed in one or more of a first exposure range and a second exposure range, the inner side of the block being parallel to the outer edge of the blackened film and maintaining a second distance, and the outer side of the block being parallel to the outer edge of the double-sided tape and maintaining a third distance.

[0010] According to some embodiments, the block is a plastic film, the material of which is selected from the group consisting of polyethylene terephthalate (PET), polypropylene, polyimide, and combinations thereof.

[0011] According to some embodiments, the upper surface of the stop is higher than the upper surface of the black coating.

[0012] According to some embodiments, the light-shielding structure includes at least one first block and at least one second block. The first block is disposed in one or more of the first exposure range and the second exposure range, and the extension direction of the first block is parallel to the outer edge of the black coating film. The second block is disposed on the first block and the black coating film, and the extension direction of the second block is parallel to the first block.

[0013] According to some embodiments, the materials of the first and second blocks are selected from the group consisting of polyethylene terephthalate, polypropylene, polyimide, and combinations thereof.

[0014] According to some embodiments, the outer side of the first stop is parallel to the outer edge of the double-sided tape and maintains a third spacing.

[0015] According to some embodiments, the periphery of the black-coated film maintains a first distance from the periphery of the double-sided tape to form the exposure area of ​​the double-sided tape.

[0016] According to some embodiments, the first spacing is greater than or equal to 0.2 mm.

[0017] According to some embodiments, the double-sided adhesive tape is selected from the group consisting of acrylic pressure-sensitive adhesives, rubber pressure-sensitive adhesives, silicone pressure-sensitive adhesives, polyurethane pressure-sensitive adhesives, and combinations thereof.

[0018] This disclosure also provides a lens module, comprising a housing, a pair of lenses, and a light-shielding structure. The housing has two light-transmitting holes on its upper surface and guide grooves on its left and right inner surfaces, the extending direction of which is parallel to the line connecting the two light-transmitting holes. The pair of lenses are respectively disposed in the two light-transmitting holes. The light-shielding structure has wing-shaped protrusions on its left and right sides, adapted to be disposed in the guide grooves to limit the displacement of the light-shielding plate and allow it to slide linearly along the extending direction of the guide grooves to block either of the two light-transmitting holes.

[0019] According to some embodiments, the black coating of the light-shielding structure is located on the light-shielding plate, and the upper surface of the light-shielding plate faces the upper surface of the housing.

[0020] According to some embodiments, at least one of the two light-transmitting holes on the upper surface of the lens module housing has a projected area of ​​the black coating of the light-shielding structure that is smaller than that of the black coating.

[0021] According to some embodiments, the lens module includes a drive motor, and the lower surface of the light-shielding plate has a rack. The drive motor meshes with the rack to drive the light-shielding plate of the light-shielding structure to slide linearly along the extension direction of the guide groove.

[0022] According to some embodiments, the outer edge of the black-plated film of the light-shielding structure maintains a first distance from the outer edge of the double-sided tape to form the exposure range of the double-sided tape. The light-shielding structure further includes a first block and a second block. The first block is disposed in the exposure range and the extension direction of the first block is parallel to the outer edge of the black-plated film. The second block is disposed on the first block and the black-plated film, and the extension direction of the second block is parallel to the first block. The second block is adapted to abut against the inner side of the upper surface of the housing. Attached Figure Description

[0023] Figure 1 This is a perspective view of the light-shielding structure according to the first embodiment of this disclosure.

[0024] Figure 2 This is an exploded view of the light-shielding structure according to the first embodiment of this disclosure.

[0025] Figures 3A to 3C This is a layered top view of a light-shielding structure according to some embodiments of this disclosure.

[0026] Figure 4A This is a top view of the light-shielding structure based on the comparative example disclosed herein.

[0027] Figure 4B Based on this disclosure Figure 4A The side sectional view of the light-shielding structure of the comparative example shown along section line AA.

[0028] Figures 5A to 5B These are photographs taken before and after the grease diffusion test of the black coating film in the comparative example disclosed herein.

[0029] Figure 6A This is a top view of the light-shielding structure according to the second embodiment of this disclosure.

[0030] Figure 6B Based on this disclosure Figure 6A The second embodiment shown is a side sectional view of the light-shielding structure along the CC section line.

[0031] Figures 7A to 7B These are actual photographs taken before and after an oil diffusion test of the black film according to some embodiments of this disclosure.

[0032] Figure 8A This is a schematic diagram of double-sided tape according to some embodiments of the present disclosure.

[0033] Figure 8B Based on this disclosure Figure 8A The illustrated embodiment shows a schematic diagram of the mesh structure of the double-sided tape in the framed area G.

[0034] Figure 9 This is a top view of the light-shielding structure according to the third embodiment of this disclosure.

[0035] Figure 10A This is a top view of the light-shielding structure according to the fourth embodiment of this disclosure.

[0036] Figure 10B Based on this disclosure Figure 10A The side sectional view of the light-shielding structure of the fourth embodiment shown along the DD section line.

[0037] Figure 11A This is a top view of the light-shielding structure according to the fifth embodiment of this disclosure.

[0038] Figure 11B Based on this disclosure Figure 11A The side sectional view of the light-shielding structure of the fifth embodiment shown along the FF section line.

[0039] Figure 12A This is a side perspective view of a lens module according to some embodiments of the present disclosure.

[0040] Figure 12B This is a front perspective view of a lens module according to some embodiments of the present disclosure.

[0041] Figure 13 This is a partial cross-sectional view of a lens module in frame region H according to some embodiments of the present disclosure.

[0042] In the attached figures, the following labels are used:

[0043] 100,100': Light-shielding structure

[0044] 10,10':Visor

[0045] 101: Wing-shaped convex part

[0046] 102: rack and pinion

[0047] 103: Flat surface

[0048] 11,11': Double-sided tape

[0049] 111: Mesh structure

[0050] 112: First rubber surface

[0051] 113: Second rubber surface

[0052] 12,12': Black coating

[0053] 13: Stop

[0054] 131: First stop

[0055] 132: Second stop

[0056] 200: Lens Module

[0057] 20: Shell

[0058] 201: Light-transmitting hole

[0059] 202: Guide groove

[0060] 21: Lubricating oil

[0061] 221, 222: Lens

[0062] 23: Drive motor

[0063] L1: Extension direction

[0064] B: Atomization range

[0065] E: Exposure range

[0066] E1: First Exposure Range

[0067] E2: Second Exposure Range

[0068] D1: First spacing

[0069] D2: Second spacing

[0070] D3: Third spacing

[0071] H1: First Height

[0072] H2: Second Altitude Detailed Implementation

[0073] The term "a" or "an" used herein is for the purpose of describing the elements and components of this work. This term is used only for convenience of description and to give the basic concept of this work. This description should be understood to include one or at least one, and unless explicitly stated otherwise, the singular includes the plural. When used in conjunction with the word "comprising" in the scope of the claims, the term "a" may mean one or more.

[0074] Unless otherwise specified, spatial descriptions such as "up," "down," "left," "right," "inner," and "outer" are indications of the directions shown in the figures. It should be understood that the spatial descriptions used herein are for illustrative purposes only, and actual implementations of the structures described herein can be spatially configured in any relative orientation without altering the advantages of the disclosed embodiments.

[0075] Please refer to the above as well. Figure 1 and Figure 2 , Figure 1 This is a perspective view of the light-shielding structure according to the first embodiment of this disclosure; Figure 2 This is an exploded view of the light-shielding structure according to the first embodiment of this disclosure. In this embodiment, the light-shielding structure 100 includes a light-shielding plate 10, double-sided tape 11, and a blackened film 12. The double-sided tape 11 is attached to the upper surface of the light-shielding plate 10, and the blackened film 12 is attached to the upper surface of the double-sided tape 11. In some embodiments, the light-shielding structure 100 is disposed within a lens module to block light from passing through the lens. The light-shielding plate 10 can slide within the lens module to block different lenses, as will be described in detail later. The blackened film 12 may be made of a light-absorbing material, or at least the surface facing the lens may be covered with a light-absorbing material to block and absorb ambient light entering the lens module through the lens, and to make the light-shielding structure 100 appear uniformly black when viewed from outside the lens. The double-sided tape 11 includes a first adhesive surface 112 and a second adhesive surface 113, respectively located on both sides of the double-sided tape 11. Figure 2 As shown, the first adhesive side 112 and the second adhesive side 113 of the double-sided tape 11 can be respectively attached to the blackened film 12 and the light-shielding plate 10, thereby fixing the blackened film 12 to the light-shielding plate 10. According to some embodiments of this disclosure, the double-sided tape 11 contains a cross-linked network structure, and its molecular chains are connected by chemical bonds to form a 3D structure.

[0076] Please refer to the following in order. Figures 3A to 3C , Figures 3A to 3CThis is a layered top view of a light-shielding structure according to some embodiments of the present disclosure. In this embodiment, the light-shielding plate 10 includes wing-shaped protrusions 101 on both sides and a flat surface 103 located between the wing-shaped protrusions 101. Double-sided adhesive tape 11 is attached to the flat surface 103 of the light-shielding plate 10. The projected area of ​​the double-sided adhesive tape 11 on the light-shielding plate 10 can be the same as that of the flat surface 103, that is, the outer edge of the double-sided adhesive tape 11 coincides with the outer edge of the flat surface 103, so that the double-sided adhesive tape 11 completely covers the flat surface 103; or, the projected area of ​​the double-sided adhesive tape 11 can be slightly smaller than that of the flat surface 103, that is, the outer edge of the double-sided adhesive tape 11 is located inside the outer edge of the flat surface 103 and maintains a gap, so that the portion of the flat surface 103 located outside the double-sided adhesive tape 11 is exposed. A black film 12 is attached to the double-sided adhesive tape 11. The projected area of ​​the black-coated film 12 onto the double-sided tape 11 is also slightly smaller than that of the double-sided tape 11. That is, the outer edge of the black-coated film 12 is located inside the outer edge of the double-sided tape 11 and maintains a gap, so that the portion of the double-sided tape 11 located outside the black-coated film 12 is exposed. Figure 3C As shown, in this embodiment, the double-sided tape 11 located on the left outer side of the black coating film 12 is not covered by the black coating film 12, thus presenting a first exposure area E1, and the double-sided tape 11 located on the right outer side of the black coating film 12 is not covered by the black coating film 12, thus presenting a second exposure area E2. Therefore, the first exposure area E1 and the second exposure area E2 can be used to prevent lubricating oil 21 from the wing-shaped protrusion 101 from spreading to the black coating film 12 and causing contamination.

[0077] For details, please refer to the following: Figure 4A and Figure 4B , Figure 4A This is a top view of the light-shielding structure based on the comparative example disclosed herein; Figure 4B Based on this disclosure Figure 4A The comparative example shown is a side sectional view of the light-shielding structure along section line AA. In this comparative example, the light-shielding structure 100' includes a light-shielding plate 10', double-sided tape 11', and a black-coated film 12'. The double-sided tape 11' is attached to the upper surface of the light-shielding plate 10', and the black-coated film 12' is attached to the upper surface of the double-sided tape 11'. The projected area of ​​the black-coated film 12' on the double-sided tape 11' is the same as that of the double-sided tape 11', so that the outer edge of the black-coated film 12' coincides with the outer edge of the double-sided tape 11'. The side surface of the light-shielding plate 10' in this comparative example is coated with lubricating oil 21 to facilitate sliding of the light-shielding plate 10' within the lens module. However, the surface tension of the lubricating oil 21 on the light-shielding plate 10' may cause the lubricating oil 21 to diffuse to the upper surface of the light-shielding plate 10', or even further penetrate into the double-sided tape 11' and the black-coated film 12'. For example, please refer to... Figure 5A and Figure 5B , Figures 5A to 5B These are photographs taken before and after the grease diffusion test of the black coating film according to the comparative example disclosed herein. In the grease diffusion test of this comparative example, the light-shielding structure 100' adopts... Figure 4A and Figure 4B The configuration shown in the comparative example allows the black coating 12' to be attached to the surface of the light shield 10' via double-sided tape 11'. Figure 5A Presented in its initial state before the oil stain test, the upper surface of the four corners of the light shield 10' outside the black film 12' is coated with lubricating oil 21. The light shield structure 100' of this comparative example was baked at 80 degrees Celsius for 3 hours after being treated with plasma. Figure 5B As shown in the oil stain test, the lubricating oil 21 not only spreads on the upper surface of the light shield 10', but also further penetrates into the black coating 12', causing the black coating 12' to exhibit a white, hazy area B. Therefore, when a user looks at the light shield structure 100' of this comparative example from outside the lens, they may observe an uneven distribution of black and white patches, affecting the product's appearance.

[0078] Please refer to the above as well. Figure 6A and Figure 6B , Figure 6A This is a top view of the light-shielding structure according to the second embodiment of this disclosure; Figure 6B Based on this disclosure Figure 6A The second embodiment of the light-shielding structure is shown in a side sectional view along the CC section line. In this embodiment, the projected area of ​​the black-coated film 12 on the double-sided tape 11 is smaller than that of the double-sided tape 11, wherein the outer edges of the upper and lower sides of the black-coated film 12 coincide with the outer edges of the double-sided tape 11. Furthermore, the outer edges of the left and right sides of the black-coated film 12 maintain a distance from the outer edges of the double-sided tape 11, so that a portion of the double-sided tape 11 located outside the black-coated film 12 is exposed, forming a first exposure range E1 on the left and a second exposure range E2 on the right. In this way, the light-shielding structure 100 can prevent the lubricating oil 21 from diffusing from the wing-shaped protrusions 101 on the left and right sides of the light-shielding plate 10 to the black-coated film 12.

[0079] In detail, in this embodiment, the outer edges of the black-plated film 12 on the left and right sides maintain a first distance D1 from the outer edge of the double-sided tape 11. When the lubricating oil 21 diffuses towards the black-plated film 12, it must pass through the first exposure range E1 or the second exposure range E2 of the double-sided tape 11. When the lubricating oil 21 penetrates into the double-sided tape 11, it causes the internal microstructure of the double-sided tape 11 to be filled and expand, increasing the viscosity of the adhesive. This makes it more difficult for the lubricating oil 21 to pass through the double-sided tape 11, which is saturated with lubricating oil 21 in the first exposure range E1 or the second exposure range E2, thereby preventing the black-plated film 12 from being contaminated. For example, please refer to... Figure 7A and Figure 7B , Figures 7A to 7B These are photographs taken before and after an grease diffusion test of the black film according to some embodiments of this disclosure. In the grease diffusion test of this embodiment, the right side of the light-shielding structure 100 is... Figure 6A and Figure 6BIn the configuration of the illustrated embodiment, double-sided tape 11 is additionally attached to the upper surface of the black film 12 on the left side to facilitate observation of the diffusion of the lubricating oil 21. The test conditions for the oil stain test in this embodiment are the same as... Figure 5A and Figure 5B The comparative examples were tested under the same conditions. Figure 7A Presenting the initial state before the oil stain test, the upper surface of the light shield 10 located on the left and right outer sides of the black film 12 is respectively dotted with lubricating oil 21. Figure 7B Presenting the state after the oil stain test, because the lubricating oil 21 seeps into the double-sided adhesive tape 11 at the second exposure area E2 to form an oil-adhesive mixture layer and prevents the lubricating oil 21 from spreading further, it can be seen that the lubricating oil 21 has not spread to the surface of the black film 12 on the right side and caused fogging. In some embodiments, the first spacing D1 is greater than or equal to 0.2 mm to provide sufficient exposure area E to prevent the lubricating oil 21 from spreading to the black film 12.

[0080] Please refer to the above as well. Figure 8A and Figure 8B , Figure 8A This is a schematic diagram of double-sided tape according to some embodiments of the present disclosure; Figure 8B Based on this disclosure Figure 8A The illustrated embodiment shows a schematic diagram of the mesh structure of the double-sided tape in the framed region G. In this embodiment, the double-sided tape 11 has a mesh structure 111, whose molecular chains are connected by chemical bonds to form a 3D structure. Therefore, when lubricating oil 21 penetrates into the interior of the double-sided tape 11, the mesh structure 111 expands and is tightened, thereby reducing the gaps between the mesh structures 111 and significantly hindering the movement of lubricating oil 21 molecules between the gaps. Thus, the penetration of lubricating oil 21 reduces the diffusion coefficient of the double-sided tape 11, thereby preventing further diffusion. Furthermore, for the colloid on the surface of the double-sided tape 11, the non-polar polymer colloid is soluble in the non-polar lubricating oil 21, causing the colloid to soften and expand under the influence of lubricating oil 21, and even partially dissolve and become fluid, thereby increasing surface viscosity. This reduces the crawling speed of lubricating oil 21 on the colloid surface of the double-sided tape 11, making continuous diffusion difficult. Figure 7A and Figure 7B As can be observed in the photograph, the double-sided tape 11, originally uneven due to the presence of air on the upper left side of the blackened film 12, becomes smooth after the lubricating oil 21 diffuses and penetrates into the tape 11, filling the gaps and stretching due to swelling. The double-sided tape 11 may contain a non-polar polymer colloid. In some embodiments, the double-sided tape 11 is selected from the group consisting of acrylic pressure-sensitive adhesives, rubber pressure-sensitive adhesives, silicone pressure-sensitive adhesives, polyurethane pressure-sensitive adhesives, and combinations thereof. In some embodiments, the lubricating oil 21 may be a non-polar molecule selected from the group consisting of silicone oil, mineral oil, aliphatic oil, and combinations thereof.

[0081] Please refer to Figure 9 , Figure 9 This is a top view of the light-shielding structure according to the third embodiment of this disclosure. In this embodiment, the projected area of ​​the black-coated film 12 onto the double-sided tape 11 is smaller than that of the double-sided tape 11. The outer edges of the black-coated film 12 and the outer edges of the double-sided tape 11 maintain a first distance D1, forming an exposure range E surrounding the black-coated film 12. Therefore, the light-shielding structure 100 can prevent lubricating oil 21 from diffusing from the wing-shaped protrusions 101 on the left and right sides of the light-shielding plate 10 to the black-coated film 12, and also prevent lubricating oil 21 from diffusing along the upper and lower surfaces of the light-shielding plate 10 to the black-coated film 12. Figure 3C As shown, in some other embodiments, the distance between the left and right outer edges of the black film 12 and the left and right outer edges of the double-sided tape 11 can also be greater than the distance between the upper and lower outer edges of the black film 12 and the upper and lower outer edges of the double-sided tape 11.

[0082] Please refer to the above as well. Figure 10A and Figure 10B , Figure 10A This is a top view of the light-shielding structure according to the fourth embodiment of this disclosure; Figure 10B Based on this disclosure Figure 10A The fourth embodiment of the light-shielding structure shown is a side sectional view along the DD section line. In this embodiment, the light-shielding structure 100 includes a light-shielding plate 10, double-sided tape 11, a black-coated film 12, and blocks 13. The double-sided tape 11 is attached to the upper surface of the light-shielding plate 10, and the black-coated film 12 is attached to the upper surface of the double-sided tape 11, with the left and right outer edges of the black-coated film 12 maintaining a distance from the left and right outer edges of the double-sided tape 11, thus forming an exposure range E. Two blocks 13 are respectively disposed in the first exposure range E1 and the second exposure range E2 of the double-sided tape 11, with the inner side of the blocks 13 parallel to the outer edge of the black-coated film 12 and maintaining a second distance D2, and the outer side of the blocks 13 parallel to the outer edge of the double-sided tape 11 and maintaining a third distance D3. Therefore, when the lubricating oil 21 diffuses towards the black film 12, it must sequentially pass through the double-sided tape 11 of the outer exposure range E of the baffle 13, the baffle 13, and the double-sided tape 11 of the inner exposure range E of the baffle 13, thus increasing the diffusion path. Furthermore, the double-sided tape 11 of the exposure range E located on the outer and inner sides of the baffle 13 can absorb the lubricating oil 21 and inhibit its further diffusion, and the second distance D2 between the baffle 13 and the black film 12 also prevents the lubricating oil 21 from flowing directly from the surface of the baffle 13 to the black film 12. In some embodiments, the baffle 13 can also be a plastic film with a mesh structure, allowing the lubricating oil 21 to penetrate into the plastic film and swell, thus preventing further diffusion of the lubricating oil 21. In some embodiments, the material of the plastic film is selected from the group consisting of polyethylene terephthalate (PET), polypropylene, polyimide, and combinations thereof.

[0083] Please refer to the above as well. Figure 11A and Figure 11B , Figure 11A This is a top view of the light-shielding structure according to the fifth embodiment of this disclosure; Figure 11B Based on this disclosure Figure 11A The fifth embodiment of the light-shielding structure shown is a side sectional view along section line FF. In this embodiment, the light-shielding structure 100 includes a light-shielding plate 10, double-sided adhesive tape 11, a black-coated film 12, a first stop block 131, and a second stop block 132. The double-sided adhesive tape 11 is attached to the upper surface of the light-shielding plate 10, and the black-coated film 12 is attached to the upper surface of the double-sided adhesive tape 11, with the left and right outer edges of the black-coated film 12 maintaining a distance from the left and right outer edges of the double-sided adhesive tape 11, thus forming an exposure range E. One set of first stop blocks 131 and second stop blocks 132 are disposed in the first exposure range E1 of the double-sided adhesive tape 11, and another set of first stop blocks 131 and second stop blocks 132 are disposed in the second exposure range E2 of the double-sided adhesive tape 11. The extending direction L1 of the first stop block 131 is parallel to the outer edge of the black-coated film 12, and the outer edge of the first stop block 131 maintains a third distance D3 from the outer edge of the double-sided adhesive tape 11. The second stop 132 is disposed on the first stop 131 and the black film 12, and the extending direction L1 of the second stop 132 is parallel to the first stop 131. Therefore, when the lubricating oil 21 diffuses towards the black film 12, it must sequentially pass through the double-sided tape 11, the first stop 131, and the second stop 132 within the exposed area E of the first stop 131, thus increasing the diffusion path. In this embodiment, the first stop 131 and the second stop 132 can be made of the same or different plastic film materials. In other embodiments, the first stop 131 and the second stop 132 are not independent components, but rather a single plastic film material is attached along the edge of the black film 12 to form a step, simultaneously covering the surfaces of the double-sided tape 11 and the black film 12.

[0084] Please refer to the above as well. Figure 12A , Figure 12B and Figure 13 , Figure 12A This is a side perspective view of a lens module according to some embodiments of the present disclosure; Figure 12B This is a front perspective view of a lens module according to some embodiments of the present disclosure; Figure 13This is a partial cross-sectional view of a lens module according to some embodiments of the present disclosure in framed region H. In this embodiment, the lens module 200 includes a housing 20, lenses 221 and 222, and a light-shielding structure 100 as described in any embodiment of the present disclosure. The upper surface of the housing 20 has two light-transmitting holes 201, and lenses 221 and 222 are disposed on the housing 20 and respectively correspond to the two light-transmitting holes 201. The inner surface of the housing 20 has a guide groove 202, and the extending direction L1 of the guide groove 202 is parallel to the direction of the line connecting the centers of the two light-transmitting holes 201. The light-shielding plate 10 of the light-shielding structure 100 has wing-shaped protrusions 101 on its left and right sides, which are adapted to be disposed in the guide groove 202 to limit the displacement of the light-shielding plate 10 and allow the light-shielding plate 10 to slide linearly along the extending direction L1 of the guide groove 202, thereby shielding either of the two light-transmitting holes 201 and realizing the switching of the optical path. In this embodiment, the black film 12 of the light-shielding structure 100 is located above the light-shielding plate 10, and the upper surface of the light-shielding plate 10 faces the upper surface of the housing 20. Therefore, when the light-shielding structure 100 moves below any light-transmitting hole 201, the black film 12 can block and absorb ambient light passing through the lenses 221, 222. In some embodiments, the projected area of ​​the light-transmitting hole 201 onto the black film 12 of the light-shielding structure 100 is smaller than the black film 12, so that light passing through the light-transmitting hole 201 can be completely blocked by the black film 12.

[0085] In some embodiments, the lens module 200 includes a housing 20, lenses 221 and 222, a light-shielding structure 100 as described in any embodiment of this disclosure, and a drive motor 23. The lower surface of the light-shielding plate 10 has a rack 102, and the drive motor 23 engages with the rack 102 to drive the light-shielding plate 10 of the light-shielding structure 100 to slide linearly along the extending direction L1 of the guide groove 202. In some embodiments, the contact surface between the wing-shaped protrusion 101 of the light-shielding plate 10 and the guide groove 202 of the housing 20 is coated with lubricating oil 21, allowing the wing-shaped protrusion 101 to slide smoothly within the guide groove 202. Figure 13 As shown, according to some embodiments, one side of the light-shielding plate 10 has an "S"-shaped structure, and the wing-shaped protrusion 101 extends outward from the bottom side of the "S"-shaped structure and is located between the grooves of the guide groove 202. The "S"-shaped structure raises the flat surface 103 of the light-shielding plate 10 to approach the light-transmitting hole 201 on the upper surface of the housing 20, and prevents the lubricating oil 21 in the guide groove 202 from flowing directly to the flat surface 103 and contaminating the black coating film 12. In addition, the light-shielding structure 100 of this embodiment includes a first stop 131 and a second stop 132 to prevent the lubricating oil 21 from spreading to the black coating film 12. On the other hand, the second stop 132 located above the black coating film 12 is adapted to abut against the inner side of the upper surface of the housing 20. When the light-shielding plate 10 shakes during the sliding process, the second stop 132 prevents the inner side of the housing 20 from rubbing against the black coating film 12 and causing surface scratches. In other embodiments, the light-shielding structure 100 may also include, Figure 10A and Figure 10B In this embodiment, the upper surface of the black-coated film 12 has a first height H1 relative to the upper surface of the light-shielding plate 10, and the upper surface of the block 13 has a second height H2 relative to the upper surface of the light-shielding plate 10. Therefore, the upper surface of the block 13 is higher than the upper surface of the black-coated film 12, so that the block 13 can abut against the inner side of the upper surface of the housing 20 when the light-shielding structure 100 shakes, thereby protecting the black-coated film 12.

[0086] In summary, according to some embodiments, the light-shielding structure 100 absorbs the lubricating oil 21 diffusing from the light-shielding plate 10 to the black-coated film 12 through the exposure range E of the double-sided tape 11, thereby inhibiting further diffusion of the lubricating oil 21 through the structural expansion and viscosity increase effect of the double-sided tape 11. According to some embodiments, the baffle 13 (or the first baffle 131 and the second baffle 132) of the light-shielding structure 100 further increases the path length of the lubricating oil 21 diffusing from the light-shielding plate 10 to the black-coated film 12, achieving the effect of blocking the lubricating oil 21 and reducing its diffusion amount. According to some embodiments, the baffle 13 (or the first baffle 131 and the second baffle 132) of the light-shielding structure 100 is higher than the black-coated film 12 to avoid friction between the black-coated film 12 and the inner surface of the housing 20, which could lead to appearance defects.

[0087] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the claims of the present invention.

Claims

1. A light-shielding structure, characterized in that, Include: A light-blocking panel; A double-sided adhesive tape is attached to the upper surface of the light-shielding panel; and A black-plated film is attached to the upper surface of the double-sided tape. The projected area of ​​the black-plated film on the double-sided tape is smaller than that of the double-sided tape, and the outer edge of the black-plated film maintains a first distance from the outer edge of the double-sided tape.

2. The light-shielding structure as described in claim 1, wherein, The light-shielding plate has a wing-shaped protrusion on each of its left and right sides, which is suitable for being disposed in a guide groove to limit the displacement of the light-shielding plate and allow the light-shielding plate to slide linearly along the extension direction of the guide groove.

3. The light-shielding structure as described in claim 2, wherein, The contact surface between the wing-shaped protrusion and the guide groove is coated with a lubricant.

4. The light-shielding structure as described in claim 3, wherein, The double-sided tape includes a first adhesive surface and a second adhesive surface. The outer edge of the black-plated film and the outer edge of the double-sided tape maintain the first distance to form an exposed area of ​​the double-sided tape. The lubricating oil penetrates into the area of ​​the double-sided tape within the exposed area.

5. The light-shielding structure as described in claim 1, wherein, The left outer edge of the black-coated film maintains the first distance from the left outer edge of the double-sided tape to form a first exposure range of the double-sided tape, and the right outer edge of the black-coated film maintains the first distance from the right outer edge of the double-sided tape to form a second exposure range of the double-sided tape.

6. The light-shielding structure as described in claim 5 further includes at least one block disposed in one or more of the first exposure range and the second exposure range, wherein the inner side of the block is parallel to the outer edge of the black coating film and maintains a second distance, and the outer side of the block is parallel to the outer edge of the double-sided tape and maintains a third distance.

7. The light-shielding structure as described in claim 6, wherein, The block is a plastic film, the material of which is selected from the group consisting of polyethylene terephthalate, polypropylene, polyimide and combinations thereof.

8. The light-shielding structure as described in claim 6, wherein, The upper surface of the block is higher than the upper surface of the black coating.

9. The light-shielding structure as claimed in claim 5 further includes at least one first block and at least one second block, the first block being disposed on one or more of the first exposure range and the second exposure range, and the extending direction of the first block being parallel to the outer edge of the black coating film, the second block being disposed on the first block and the black coating film, and the extending direction of the second block being parallel to the first block.

10. The light-shielding structure as described in claim 9, wherein, The outer side of the first stop is parallel to the outer edge of the double-sided tape and maintains a third gap.

11. The light-shielding structure as described in claim 1, wherein, The edges of the black coating are spaced at the first distance from the edges of the double-sided tape to form an exposed area of ​​the double-sided tape.

12. The light-shielding structure as described in claim 1, wherein, The first spacing is greater than or equal to 0.2 mm.

13. The light-shielding structure as described in claim 1, wherein, The double-sided adhesive tape is selected from the group consisting of acrylic pressure-sensitive adhesives, rubber pressure-sensitive adhesives, silicone pressure-sensitive adhesives, polyurethane pressure-sensitive adhesives, and combinations thereof.

14. A lens module, characterized in that, Include: A housing with two light-transmitting holes on its upper surface and a guide groove on each of its left and right inner surfaces, the extension direction of which is parallel to the direction of the line connecting the two light-transmitting holes; A pair of lenses are respectively positioned at the two light-transmitting holes; as well as The light-shielding structure of claim 1, wherein the light-shielding plate has a wing-shaped protrusion on each of its left and right sides, which is adapted to be disposed in the guide groove to limit the displacement of the light-shielding plate and allow the light-shielding plate to slide linearly along the extension direction of the guide groove to shield either of the two light-transmitting holes.

15. The lens module as claimed in claim 14, wherein, The black coating of the light-shielding structure is located on the light-shielding plate, and the upper surface of the light-shielding plate faces the upper surface of the housing.

16. The lens module as claimed in claim 14, wherein, The projected area of ​​either of the two light-transmitting holes onto the black coating of the light-shielding structure is smaller than that of the black coating.

17. The lens module of claim 14, further comprising a drive motor, wherein the lower surface of the light shield has a rack, and the drive motor engages with the rack to drive the light shield of the light shield structure to slide linearly along the extension direction of the guide groove.

18. The lens module as claimed in claim 14, wherein, The outer edge of the black coating of the light-shielding structure maintains the first distance from the outer edge of the double-sided tape to form an exposure range of the double-sided tape. The light-shielding structure further includes a first stop and a second stop. The first stop is disposed in the exposure range and the extension direction of the first stop is parallel to the outer edge of the black coating. The second stop is disposed on the first stop and the black coating and the extension direction of the second stop is parallel to the first stop. The second stop is adapted to abut against the inner side of the upper surface of the housing.

19. The lens module as claimed in claim 18, wherein, The first block and the second block are each a plastic film, the material of which is selected from the group consisting of polyethylene terephthalate film, polypropylene, polyimide and combinations thereof.

20. The lens module as claimed in claim 14, wherein, The double-sided adhesive tape is selected from the group consisting of acrylic pressure-sensitive adhesives, rubber pressure-sensitive adhesives, silicone pressure-sensitive adhesives, polyurethane pressure-sensitive adhesives, and combinations thereof.

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