Lens protection structure

Abstract

The application provides a lens protection structure, which comprises a body attached to a lens module and forming a containing cavity with the lens module, the containing cavity being used for containing a lens, an air escape structure being arranged on the body and being used for communicating the containing cavity with the outside, the air escape structure comprising an air flow channel communicating the containing cavity with the outside, the air flow channel comprising a first opening communicating with the outside and a second opening communicating with the containing cavity; the air escape structure further comprises a change direction part connected to the air flow channel and a remaining part connected to the change direction part, the change direction part being used for impeding air flow passing through the air flow channel, and the remaining part being used for remaining impurities in the impeded air flow. In this way, the lens protection structure provided by the application can protect the lens, avoid forming a closed space on the lens, maintain air flow between the inside and the outside of the containing cavity, and avoid impurities such as dust adhering to the lens.

Description

Technical Field

[0001] This application relates to the field of electronic and optical device technology, and in particular to a lens protection structure. Background Technology

[0002] In the production and processing of conventional lens modules, after the lens is installed on the lens mount, a protective structure is needed to prevent damage during subsequent processes or transportation. Currently, foam bases are commonly used. While foam bases offer good breathability and prevent the formation of a sealed space between the lens and the protective film, they generate a significant amount of dust and debris during use, which can contaminate the lens. To overcome these drawbacks, injection-molded bases are typically used instead of foam bases. However, when attached to the lens module, the injection-molded base creates a sealed space between the lens and the protective film. When the lens module is heated, the gas in this sealed space expands, potentially lifting the top of the injection-molded lens protective film and even causing it to detach. Therefore, injection-molded lens protective films need to have vent holes to allow gas to escape and prevent the formation of a sealed space.

[0003] However, the vent structure of existing injection-molded protective films, while avoiding the formation of a sealed space between the lens and the protective film, still makes it difficult to prevent external dust and other impurities from entering the protective film and adhering to the lens, thus contaminating it. Summary of the Invention

[0004] In view of the above, it is necessary to propose a lens protection structure that can protect the lens while avoiding the formation of a sealed space at the lens and preventing external dust and other impurities from adhering to the lens.

[0005] This application provides a lens protection structure, comprising: a body for attaching to a lens module and forming a receiving cavity together with the lens module, the receiving cavity for accommodating a lens, and an escaping structure on the body connecting the receiving cavity to the outside; the escaping structure comprising: an airflow channel connecting the receiving cavity to the outside, the airflow channel including a first opening connecting to the outside and a second opening connecting to the receiving cavity; a deflector connected to the airflow channel for obstructing the airflow passing through the airflow channel; and a retaining part connected to the deflector for retaining impurities in the airflow when the airflow is obstructed at the deflector.

[0006] In this way, after the lens protection structure is attached to the lens module, the lens of the lens module is housed in the housing cavity of the main body, avoiding damage during subsequent manufacturing and transportation. The venting structure not only maintains the airflow between the housing cavity and the outside air, but also retains impurities in the air in the retention part, preventing impurities in the outside air from entering the housing cavity and contaminating the lens.

[0007] In other embodiments, the retention section includes a retention chamber for containing retained impurities, the retention chamber being connected to the airflow channel and formed as an inwardly recessed groove.

[0008] In other embodiments, the body includes: a base, a protective film, and an adhesive layer. The protective film is fixed to the base, and the adhesive layer is used to attach the base to the lens module. The base, protective film, and adhesive layer are all hollow structures to form a cavity after being attached to the lens module. The base includes a sidewall surrounding the cavity, a first surface and a second surface opposite to the first surface on the sidewall, the protective film is fixed to the first surface, and the base is attached to the lens module on the second surface through the adhesive layer. An venting structure is provided on the sidewall of the cavity.

[0009] In other embodiments, the airflow channel includes: a first transverse channel disposed on the sidewall of the base and extending parallel to the first surface to the first opening;

[0010] A second transverse channel, disposed on the sidewall of the base and extending parallel to the first surface to the second opening; and

[0011] A vertical channel is connected between the first horizontal channel and the second horizontal channel; wherein, the deflecting part is disposed at the connection between the first horizontal channel and the vertical channel and at the connection between the second horizontal channel and the vertical channel, and the retention part includes a retention chamber of the deflecting part disposed at the connection between the second horizontal channel and the vertical channel, the retention chamber extending from the deflecting part toward the second surface.

[0012] In other embodiments, the escaping structure further includes a deflector located at the connection between the first transverse channel and the vertical channel;

[0013] The retention section also includes a retention chamber in a deflector section connected to the junction of the first transverse channel and the vertical channel, the retention chamber extending from the deflector section into the receiving cavity.

[0014] In other embodiments, the airflow channel includes: a first transverse channel disposed on the sidewall of the base and extending parallel to the first surface to the first opening;

[0015] A second transverse channel is disposed on the sidewall of the base and extends parallel to the first surface to the second opening; and

[0016] The first vertical hole and the second vertical hole are parallel and staggered. One end of the first vertical hole is connected to the first transverse channel and the other end is connected to the second vertical hole.

[0017] One end of the second vertical hole is connected to the first vertical hole, and the other end is connected to the second horizontal channel;

[0018] The reversing part is provided at the connection between the first vertical hole and the first transverse channel, the connection between the first vertical hole and the second vertical hole, and the connection between the second vertical hole and the second transverse channel;

[0019] The retention section includes a retention chamber located at the bottom of the first vertical hole and extending to the second surface. A partition wall is provided between the retention chamber and the second vertical hole to separate the retention chamber from the second vertical hole.

[0020] In other embodiments, the retention chamber is shaped as a cone or a polygonal pyramid.

[0021] In other embodiments, the retention chamber is provided with an adhesive portion for adhering to impurities entering the retention chamber.

[0022] In other embodiments, the diameters of both the first and second vertical holes are greater than or equal to 0.6 mm.

[0023] In other embodiments, the base is an injection-molded part. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the lens protection structure of this application being adhered to the lens module.

[0025] Figure 2 yes Figure 1 The diagram shown is an exploded view of the lens protection structure.

[0026] Figure 3 yes Figure 2 The image shows a cross-sectional view of the base sidewall of the lens protection structure.

[0027] Figure 4 This is a cross-sectional view of the base sidewall of the second embodiment of the lens protection structure of this application.

[0028] Figure 5 This is a cross-sectional view of the base sidewall of the third embodiment of the lens protection structure of this application.

[0029] Figure 6 This is a cross-sectional view of the base sidewall of the fourth embodiment of the lens protection structure of this application.

[0030] Figure 7 This is a schematic diagram of the air escape structure of the fifth embodiment of the lens protection structure of this application.

[0031] Figure 8 yes Figure 7 A cross-sectional view of the base sidewall of the lens protection structure.

[0032] Explanation of main component symbols

[0033] Lens protection structure 100

[0034] Ontology 200

[0035] Lens Module 300

[0036] Base 10

[0037] Side wall 11

[0038] First surface 12

[0039] Second surface 13

[0040] Protective film 20

[0041] First adhesive layer 30

[0042] Second adhesive layer 40

[0043] 50 sacs

[0044] Escape structure 60

[0045] airflow channel 70

[0046] First opening 71

[0047] Second opening 72

[0048] First transverse passage 73

[0049] Second transverse channel 74

[0050] Vertical passage 75

[0051] First vertical hole 76

[0052] Second vertical hole 77

[0053] 80-degree turning section

[0054] Lien Department 90

[0055] Detention Warehouse 91

[0056] partition wall 92

[0057] Adhesive part 93 Detailed Implementation

[0058] To better understand the purpose, features, and advantages of this application, a detailed description of the application is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other. Numerous specific details are set forth in the following description to provide a thorough understanding of this application; the described embodiments are only a part of the embodiments of this application, and not all of them.

[0059] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0061] The following will describe in detail some embodiments of this application with reference to the accompanying drawings.

[0062] Please see Figure 1 and Figure 2 The lens protection structure 100 includes a body 200, which includes a base 10, a protective film 20, a first adhesive layer 30, and a second adhesive layer 40. The protective film 20 is attached to the base 10 via the first adhesive layer 30, and the base 10 is attached to the lens module 300 via the other first adhesive layer 30 and the second adhesive layer 40, thereby attaching the lens protection structure 100 to the lens module 200 for lens protection. Specifically, the base 10, the protective film 20, the first adhesive layer 30, and the second adhesive layer 40 are all hollow structures to form the receiving cavity when combined with the lens module, for accommodating the lens when attached to the lens module 300. The base 10 includes a sidewall 11 surrounding the lens, and the protective film 20 is a cover attached to the sidewall 11 of the base 10 via the first adhesive layer 30, thereby enclosing the lens within the lens protection structure 100.

[0063] Specifically, the base 10 is made of injection-molded material, such as silicone, and is formed into a square frame, which includes a first surface 12 and a second surface 13 disposed opposite to the first surface 12. The protective film 20 is attached to the first surface 12 through a first adhesive layer 30, and the base 10 is attached to the lens module 300 through the first adhesive layer 30 and the second adhesive layer 40, thereby forming an accommodating cavity 50 between the base 10, the protective film 20 and the lens module 300 for accommodating the lens of the lens module 300.

[0064] It should be understood that in this embodiment, the protective film 20 is attached to the base 10 by the first adhesive layer 30. In other embodiments, the protective film 20 can also be fixed to the base 10 by other means, such as the protective film 20 being self-adhesive, by a slot, or by any other fixing component. In this embodiment, the base 10 is attached to the lens module 300 by the first adhesive layer 30 and the second adhesive layer 40. In other embodiments, the first adhesive layer 30 can be omitted, and the base 10 can be attached to the lens module 300 by the second adhesive layer 40 alone. In this embodiment, the first adhesive layer 30 is double-sided adhesive, the second adhesive layer 40 is antistatic silicone, and the protective film 20 is a PET film. In other embodiments, the protective film 20 can also be a high-transmittance film or sheet of other materials, such as polyester.

[0065] Continue reading Figure 3 The base 10 has an escape structure 60 on its side wall. The escape structure 60 includes an airflow channel 70, a deflector 80, and a retention section 90. The airflow channel 70 has a first opening 71 that communicates with the outside and an opening that communicates with the receiving cavity 50 (e.g., Figure 2 As shown, the second opening 72 is connected, and the deflector 80 is connected to the airflow channel 70. It can also be understood that the deflector 80 is part of the airflow channel 70. The deflector 80 can obstruct the airflow passing through the airflow channel 70. That is, when the airflow passing through the airflow channel 70 passes through the deflector 80, it will be obstructed by the deflector 80 and will not directly and smoothly reach the second opening 72 and enter the receiving cavity 50. The retention section 90 is connected to the deflection section 80. It can also be understood that the retention section 90 extends in the direction before the airflow changes direction at the deflection section, which is close to the deflection section 80. This allows the airflow to change direction after entering the retention section 90. The retention section 90 is used to retain impurities in the air that has passed through the airflow channel 70. In other words, the airflow channel 70 turns at the deflection section 80, and the retention section 90 is connected at the turning point and extends in the direction before the turning point. When the airflow enters the accommodating cavity 50 from the outside, it will enter the retention section 90 in the direction before the turning point and then change direction or even form a vortex in the retention section 90. Impurities in the airflow enter the retention section 90 with the airflow, but due to inertia, gravity and other effects, the impurities are difficult to change direction and leave with the airflow and will remain in the retention section 90.

[0066] In this way, after the lens protection structure 100 is attached to the lens module 300, the lens of the lens module 300 is housed in the accommodating cavity 50, which prevents the lens from being damaged during subsequent manufacturing and transportation. The venting structure 60, while maintaining the airflow between the accommodating cavity 50 and the outside air, can also retain impurities in the air entering the lens protection structure 100 in the retention part 90, preventing impurities in the outside air from entering the accommodating cavity 50 and contaminating the lens.

[0067] like Figure 4As shown, in other embodiments, the retention section 90 includes a retention chamber 91 for containing retained impurities. The retention chamber 91 is connected to the airflow channel 70 and is a recessed groove. The recessed direction is consistent with the airflow direction before the airflow entering from the first opening 71 reaches the deflection section 80. After the airflow enters the airflow channel 70 through the first opening 71, it further enters the retention chamber 91 at the deflection section 80. Then the airflow changes direction and leaves the retention chamber 91 and enters the receiving cavity through the second opening 72. After the impurities in the airflow enter the retention chamber 91, due to inertia and their own gravity, they will have difficulty leaving the retention chamber 91 with the airflow under the restriction of the retention chamber 91.

[0068] like Figure 5 As shown, in other embodiments, the airflow channel 70 further includes a first transverse channel 73, a second transverse channel 74, and a vertical channel 75. The first transverse channel 73 is disposed on the side wall of the base 10 and extends parallel to the first surface 11 to the first opening 71 to communicate with the outside. The second transverse channel 74 is disposed on the side wall of the base 10 and extends parallel to the first surface 12 to the second opening 72 to communicate with the receiving cavity 50. The vertical channel 75 connects the first transverse channel 73 and the second transverse channel 74. The deflection part 80 is disposed at the connection between the first transverse channel 73 and the vertical channel 75 and the connection between the vertical channel 75 and the second transverse channel 74. That is, when the airflow enters the airflow channel 70 from the first opening 71 flows through the two deflection parts 80, it will be obstructed by the deflection parts 80 and undergo two deflections, instead of directly and smoothly reaching the second opening 72 and entering the receiving cavity 50. The retention chamber 91 is connected to the deflector 80 at the junction of the second transverse channel 74 and the vertical channel 75 and is located at the bottom of the vertical channel 75, extending towards the second surface 13. That is, the airflow will first enter the retention chamber 91 at the deflector 80, then change direction and leave and enter the second transverse channel 74. Impurities in the airflow, after entering the retention chamber 91, are difficult to leave due to inertia and their own gravity, and will remain in the retention chamber 91.

[0069] In this way, when the airflow enters the airflow channel 70 from the first transverse channel 73 and enters the receiving cavity 50 via the second transverse channel 74, as it flows along the vertical channel 75 to the deflection section 80 at the connection between the vertical channel 75 and the second transverse channel 74, it tends to flow from the first surface 12 to the second surface 13. Therefore, when it turns at the deflection section 80 and enters the second transverse channel 74, the airflow first enters the retention chamber 91 protruding towards the second surface 13, and then enters the second transverse channel 74. Meanwhile, impurities in the air tend to enter the retention chamber 91 under the action of the airflow and be retained there, without turning into the second transverse channel 74.

[0070] In other embodiments, the dimensions of the retention chamber 91 gradually decrease along its extension direction. For example... Figure 5As shown, the size of the retention chamber 91 gradually decreases along the direction from the first surface 12 to the second surface 13, and is roughly shaped as an inverted cone.

[0071] In this way, as the size of the retention chamber 91 gradually decreases, the impurities in the retention chamber 91 will accumulate towards the bottom of the retention chamber 91, thus preventing the impurities from accumulating at the deflection section 80 or the airflow channel 70 and blocking the airflow.

[0072] It should be understood that, in other embodiments, the indwelling chamber 91 may also be formed into any shape whose dimensions gradually decrease along its convex direction, such as a cone or a pyramid.

[0073] In other embodiments, such as Figure 6 As shown, the retention section also includes a retention chamber 91 located on a deflector 80 at the connection between the first transverse channel 73 and the vertical channel 75, extending from the side wall of the vertical channel 75 toward the receiving cavity 50 along the direction of the airflow entering from the first opening 71. In this way, when the airflow turns to enter the vertical channel 75, it also enters the retention chamber 91 there. Impurities, after entering the retention chamber with the airflow, are difficult to leave due to inertia, thus retaining the impurities in the retention chamber 91 on the deflector 80 at the connection between the first transverse channel 73 and the vertical channel 75. After the airflow enters the vertical channel 75, when it turns to enter the second transverse channel 74, it can further retain the impurities in the retention chamber 91 of the deflector 80 at the connection between the second transverse channel 74 and the vertical channel 75. Through two deflections and two retentions, impurities are further prevented from entering the receiving cavity 50.

[0074] In other embodiments, such as Figures 7-8 As shown, the vertical channel 75 is configured as a connected first vertical hole 76 and a second vertical hole 77, wherein the first vertical hole 76 and the second vertical hole 77 are parallel and staggered. One end of the first vertical hole 76 is connected to the first horizontal channel 73, and the other end is connected to the second vertical hole 74; one end of the second vertical hole 77 is connected to the first vertical hole 76, and the other end is connected to the second horizontal channel 74; the overlapping length of the first vertical hole 76 and the second vertical hole 77 is less than or equal to 1.5 times the height of either the first horizontal channel 73 or the second horizontal channel 74. The deflection section 80 is provided at the connection between the first vertical hole 76 and the first horizontal channel 73, the connection between the first vertical hole 76 and the second vertical hole 77, and the connection between the second vertical hole 77 and the second horizontal channel 74; the retention section 90 includes a retention chamber 91 provided at the deflection section 80 at the connection between the first vertical hole 76 and the second vertical hole 77, the retention chamber 91 extends along the bottom of the first vertical hole 76 toward the second surface 13; a partition wall 92 is provided between the retention chamber 91 and the second vertical hole 77 to separate the retention chamber 91 and the second vertical hole 77.

[0075] In this way, when the airflow entering from the first opening 71 enters the second vertical hole 77 from the first vertical hole 76, it enters the retention chamber 91 and turns at the deflection part 80 at the connection between the first vertical hole 76 and the second vertical hole 77. Meanwhile, impurities in the airflow are swept into the retention chamber 91 along with the airflow and are retained in the retention chamber 91 by the obstruction of the partition wall 92, preventing them from being swept into the second transverse channel 74 with the airflow.

[0076] In other embodiments, the retention chamber 91 is provided with an adhesive portion 93 for adhering to impurities entering the retention chamber, such as... Figure 8 As shown, the side wall of the retention chamber 91 is provided with an adhesive part 93.

[0077] In this way, the impurities in the retention chamber 91 are adhered by the adhesive part 93, which can prevent the impurities that have entered the retention chamber 91 from being rushed out of the retention chamber 91 with the airflow, or prevent the impurities that have entered the retention chamber 91 from escaping when the lens module 300 and the lens protection structure 100 are moved or flipped.

[0078] In other embodiments, the first transverse channel 73 and the second transverse channel 74 are at different distances from the first surface 12, and the distance between the first transverse channel 73 and the first surface 12 is less than the distance between the second transverse channel 74 and the first surface 12.

[0079] In this way, when the airflow enters the airflow channel 70 through the first transverse channel 73 and enters the receiving cavity 50 through the second transverse channel 74, it will inevitably change direction from towards the second surface 13 to towards the receiving cavity 50, thereby carrying the impurities in the airflow towards the second surface 13, making it easier for the impurities to enter the retention chamber 91 at the changing part 80 where the direction changes.

[0080] In other embodiments, such as Figure 7 As shown, the width of the first opening 71 along the direction of the first surface 12 is greater than that of the first transverse channel 73; the width of the second opening 72 along the direction of the first surface 12 is greater than that of the second transverse channel 74.

[0081] In this way, the first opening 71 and the second opening 72 have larger dimensions, which can improve the ventilation effect, while the first transverse channel 73 and the second transverse channel 74 have narrower dimensions, which can reduce the probability of impurities entering.

[0082] In this embodiment, the height of the first transverse channel 73 and the width of the second transverse channel 74 are both 0.2 mm, and the width of the first opening 71 and the second opening 72 are both 0.6 mm. It should be understood that the above dimensions are for illustrative purposes only and are not intended to limit this application. In other embodiments, the dimensions of the first transverse channel 73, the second transverse channel 74, the first opening 71, and the second opening 72 can be arbitrarily adjusted according to actual needs.

[0083] In other embodiments, the diameter of the airflow channel 70 is at least 0.6 mm to ensure ventilation effect. The larger the diameter of the airflow channel, the shorter the length of the first and second transverse channels 73 and 744, which also reduces the probability of blockage in the first and second transverse channels 73 and 74.

[0084] In other embodiments, the diameters of the first vertical hole 76 and the second vertical hole 77 are at least 0.5 mm to ensure ventilation.

[0085] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A lens protection structure, characterized in that, include: The body is used to attach to a lens module and together with the lens module form a receiving cavity, the receiving cavity is used to accommodate the lens, and the body is provided with an escaping structure that connects the receiving cavity to the outside. The air escape structure includes: An airflow channel connects the accommodating cavity to the outside world, the airflow channel including a first opening communicating with the outside world and a second opening communicating with the accommodating cavity; A deflector, connected to the airflow channel, is used to obstruct the airflow passing through the airflow channel; The retention section, connected to the deflector section, is used to retain impurities in the airflow when the airflow is obstructed by the deflector section.

2. The lens protection structure as described in claim 1, characterized in that, The retention section includes a retention chamber for containing retained impurities. The retention chamber is connected to the airflow channel and is formed into an inwardly recessed groove.

3. The lens protection structure as described in claim 1, characterized in that, The body includes: Base; Protective film, fixed to the base; The adhesive layer is used to attach the base to the lens module; among which... The base, protective film, and adhesive layer are all hollow structures to form the receiving cavity after being attached to the lens module. The base includes a sidewall surrounding the receiving cavity. The sidewall is provided with a first surface and a second surface opposite to the first surface. The protective film is fixed to the first surface. The base is attached to the lens module on the second surface through the adhesive layer. The venting structure is provided on the sidewall of the receiving cavity.

4. The lens protection structure as described in claim 3, characterized in that, The airflow channel includes: A first transverse channel is disposed on the side wall of the base and extends parallel to the first surface to the first opening; A second transverse channel, disposed on the sidewall of the base and extending parallel to the first surface to the second opening; and A vertical channel connects the first horizontal channel and the second horizontal channel; wherein, The deflection section is disposed at the connection between the first horizontal channel and the vertical channel and at the connection between the second horizontal channel and the vertical channel. The retention section includes a retention chamber of the deflection section disposed at the connection between the second horizontal channel and the vertical channel, and the retention chamber extends from the deflection section toward the second surface.

5. The lens protection structure as described in claim 4, characterized in that, The air escape structure also includes a deflector located at the connection between the first transverse channel and the vertical channel; The retention section further includes a retention compartment of a deflector section connected at the junction of the first transverse channel and the vertical channel, the retention compartment extending from the deflector section into the receiving cavity.

6. The lens protection structure as described in claim 3, characterized in that, The airflow channel includes: A first transverse channel is disposed on the side wall of the base and extends parallel to the first surface to the first opening; A second transverse channel, disposed on the sidewall of the base and extending parallel to the first surface to the second opening; and The first vertical hole and the second vertical hole, wherein... The first vertical hole and the second vertical hole are parallel and staggered. One end of the first vertical hole is connected to the first transverse channel, and the other end is connected to the second vertical hole. One end of the second vertical hole is connected to the first vertical hole, and the other end is connected to the second horizontal channel; The reversing part is disposed at the connection between the first vertical hole and the first horizontal channel, the connection between the first vertical hole and the second vertical hole, and the connection between the second vertical hole and the second horizontal channel; The retention section includes a retention chamber disposed at the bottom of the first vertical hole and extending toward the second surface. A partition wall is provided between the retention chamber and the second vertical hole to separate the retention chamber from the second vertical hole.

7. The lens protection structure as described in claim 2, characterized in that, The retention chamber is shaped like a cone or a multi-faceted pyramid.

8. The lens protection structure as described in claim 2, characterized in that, The retention chamber is equipped with an adhesive section for adhering to impurities that enter the retention chamber.

9. The lens protection structure as described in claim 6, characterized in that, The diameters of both the first vertical hole and the second vertical hole are greater than or equal to 0.6 mm.

10. The lens protection structure as described in claim 3, characterized in that, The base is an injection molded part.

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