Mounting structure for shading foam of camera lens

Abstract

The utility model discloses a mounting structure for shading foam of a camera lens. The mounting structure comprises a front cover unit, the shading foam and a lens unit, a lens hole is formed in the shading foam; the lens unit is provided with a lens and a lens base, the lens is connected with the lens base, and one end of the lens away from the lens base is inserted into the lens hole; the front cover unit is provided with a front cover rib position and lens glass, the shading foam is arranged between the front cover rib position and the lens base, and a gap exists between the shading foam and the lens glass. Through the combined design of the front cover unit, the shading foam and the lens unit, better adaptability to the lens can be realized, and the lens field view angle can be adapted to be used in a larger wide-angle range; the shading foam is supported by the front cover rib position at the front end and the lens base at the rear end, so that the shading foam structure moves backwards, and the shading foam is prevented from influencing the visual angle of a lens field.

Description

Technical Field

[0001] This utility model relates to an installation structure for a camera light-shielding foam, belonging to the field of camera technology. Background Technology

[0002] To ensure image quality in cameras, light-blocking treatment is generally required around the lens. Typically, light-blocking foam (black EVA foam) is frequently used to surround the lens due to its affordability, light-blocking properties, and good cushioning. As a light-blocking material installed at the front of the camera, camera light-blocking foam effectively blocks light, preventing strong light from directly hitting the camera lens, reducing reflections, whitening, blurring, and other phenomena, thus improving image clarity and realism.

[0003] In existing technologies, the assembly structure of light-blocking foam involves directly attaching the front end of the foam to the lens glass, while the periphery is press-fitted and fixed to the front cover of the camera housing. This results in gaps between the light-blocking foam and the lens periphery. Because of this installation method, the direct contact between the light-blocking foam and the lens glass obstructs the lens's field of view. Furthermore, widening the gap around the lens foam significantly reduces its light-blocking effect, impacting image quality. Secondly, the press-fitting mechanism between the light-blocking foam and the front cover leads to accumulated dimensional tolerances, resulting in poor uniformity of the gap between the foam and the lens, affecting the overall appearance of the lens. Utility Model Content

[0004] To address the aforementioned issues, this application proposes an installation structure for camera light-shielding foam. This structure resolves the problems in existing installation methods where the light-shielding foam directly adheres to the lens, obstructing the lens's field of view and affecting the overall appearance of the lens due to accumulated tolerances in the dimensional chain.

[0005] This utility model provides the following solution:

[0006] An installation structure for a camera lens light-shielding foam includes a front cover unit, light-shielding foam, and a lens unit. The light-shielding foam has a lens hole. The lens unit includes a lens and a lens base, with the lens connected to the lens base. The end of the lens furthest from the lens base is inserted into the lens hole, allowing the light-shielding foam to wrap around the lens. The front cover unit includes a front cover rib and a lens glass. The lens glass is located on the side of the lens furthest from the lens base. The front cover rib is located between the lens glass and the lens, and is positioned around the lens glass to prevent it from obstructing the lens or the lens glass. The light-shielding foam is located between the front cover rib and the lens base, with a gap between the light-shielding foam and the lens glass.

[0007] Furthermore, the front cover ribs are arranged sequentially from the inside to the outside as a first front cover rib and a second front cover rib. Both the first and second front cover ribs extend in the same direction along the X-axis, and the extension length of the second front cover rib in the X-axis direction is 3-15mm greater than that of the first front cover rib.

[0008] Furthermore, the end of the light-blocking foam closest to the lens glass abuts against the first front cover rib along the X-axis, which is used to limit the light-blocking foam in the X-axis direction.

[0009] Furthermore, the end of the light-blocking foam furthest from the lens abuts against the second front cover rib along the Y-axis, serving to limit the light-blocking foam in the Y-axis direction.

[0010] Furthermore, the contact between the light-blocking foam and the first and second front cover ribs is an interference fit to avoid light interference at the point where the light-blocking foam touches the first and second front cover ribs.

[0011] Furthermore, the rear end of the light-blocking foam is connected to the lens base by an abutment, which is used to limit the movement of the light-blocking foam at the rear end.

[0012] Furthermore, the lens aperture is interference-fitted with the lens, providing stable support for the lens and reducing astigmatic interference.

[0013] Furthermore, the frontmost part of the front cover unit is the front cover housing, and the lens glass is bonded to the inner wall of the front cover housing; the rear end of the lens is provided with a threaded groove, and the lens is connected to the lens base through the threaded groove or other connection methods.

[0014] Furthermore, the gap between the lens glass and the light-blocking foam is between 2-5mm, and the gap between the front end of the lens and the lens glass is between 1-4mm, to avoid the light-blocking foam from overly restricting the lens.

[0015] Furthermore, the first front cover rib and the second front cover rib are designed as an integral part of the front cover shell.

[0016] The beneficial effects of this application include, but are not limited to:

[0017] (1) By setting up a front cover unit, light-blocking foam, and lens unit, and combining the structure, better adaptability to the lens can be achieved, and the lens field of view can be adapted to a wider range of wide angles. The light-blocking foam is supported by the front cover ribs at the front end and the lens base at the rear end, so that the light-blocking foam structure can be moved back to avoid the light-blocking foam affecting the lens field of view.

[0018] (2) This solution accommodates the accumulated tolerances in the parts processing and assembly process within the gap between the front cover unit and the outer ring of the light-blocking foam, which is very friendly to the appearance of the lens and avoids uneven gaps around the lens from the perspective of appearance.

[0019] (3) In this design, the front end of the light-blocking foam is compressed to a certain extent with the front cover, the rear end of the light-blocking foam is squeezed tightly against the lens base, and the inner ring is also interference-fitted with the lens, which completely blocks the path of internal light entering the lens, which is very friendly to the imaging effect of the lens. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a cross-sectional schematic diagram of the installation structure of a camera lens light-shielding foam provided by this utility model;

[0022] Figure 2 This is a right view of the mounting structure of a camera lens light-shielding foam provided by this utility model;

[0023] Figure 3 This is a front view of the mounting structure of a camera lens light-shielding foam provided by this utility model;

[0024] Figure 4 This is a front view of the lens base of a camera lens light-shielding foam mounting structure provided by this utility model;

[0025] Figure 5 This is a three-dimensional view of the mounting structure of a camera lens light-shielding foam provided by this utility model.

[0026] List of components and reference numerals:

[0027] 1. Front cover unit; 2. Light-blocking foam; 3. Lens unit; 101. Front cover housing; 102. Lens glass; 103. First front cover rib; 104. Second front cover rib; 111. Foam gap; 301. Lens base; 302. Lens; 303. Threaded groove; A. Front end; B. Rear end. Detailed Implementation

[0028] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0029] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0031] Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] An installation structure for a camera lens light-shielding foam, such as Figure 1-3 As shown, it includes a front cover unit, a light-blocking foam, and a lens unit; the light-blocking foam has a lens hole; the lens unit is provided with a lens and a lens base, the lens is connected to the lens base, and the end of the lens away from the lens base is inserted into the lens hole, so that the light-blocking foam wraps around the outer periphery of the lens; the front cover unit is provided with a front cover rib and a lens glass, the lens glass is provided on the side of the lens away from the lens base, the front cover rib is provided between the lens glass and the lens, and the front cover rib is provided on the periphery of the lens glass so that it does not obstruct the lens and the lens glass; the light-blocking foam is provided between the front cover rib and the lens base, and there is a gap between the light-blocking foam and the lens glass. By creating a lens aperture in the light-blocking foam, the lens can be placed at this aperture, connecting the foam to the lens and ensuring the lens passes through it. The foam is then fitted against the front of the lens, completely blocking the path of internal light entering the lens, resulting in better image quality. Furthermore, the bottom of the lens connects to the lens base using various methods, including but not limited to adhesive, threaded, or snap-fit ​​connections, to secure the lens. The lens glass is positioned furthest from the lens element. At one end of the head base, the front cover rib is positioned between the lens glass and the lens, and does not obstruct the lens glass or the lens from the outside. This allows the front cover rib to limit and support the light-blocking foam without blocking the light from the lens. The light-blocking foam is connected to the front cover rib at the front end and the lens base at the rear end, allowing the light-blocking foam to move backward as a whole compared to existing technologies. This replaces the original design of directly attaching the light-blocking foam to the lens glass, which not only blocks the light from the lens but also further avoids interference with the lens field of view.

[0033] In another embodiment, such as Figure 1-3As shown, the front cover ribs are arranged sequentially from the inside out as a first front cover rib and a second front cover rib. Both the first and second front cover ribs extend in the same direction along the X-axis, with the extension length of the second front cover rib along the X-axis being 3-15mm greater than that of the first front cover rib. Both the first and second front cover ribs are rectangular rings, and their extension length along the X-axis is approximately 3-15mm greater than that of the first front cover rib. By setting the first and second front cover ribs with different extension lengths, the position of the light-blocking foam can be further defined, improving stability.

[0034] In another embodiment, such as Figure 1 As shown, the end of the light-blocking foam closest to the lens glass abuts against the first front cover rib along the X-axis, thus limiting the position of the light-blocking foam in the X-axis direction. The first front cover rib is located within the inner ring of the second front cover rib, and its extension along the X-axis is greater than the thickness of the lens glass. Therefore, the first front cover rib can be used to limit the position of the light-blocking foam in the X-axis direction, thereby preventing the light-blocking foam from directly contacting the lens glass. This connection method provides a wide field of view for the lens.

[0035] In another embodiment, such as Figure 1 As shown, the end of the light-blocking foam furthest from the lens abuts against the second front cover rib along the Y-axis, serving to limit the position of the light-blocking foam in the Y-axis direction. The second front cover rib is located outside the first front cover rib and has a longer extension length in the X-axis direction. This longer extension length of the second front cover rib helps to limit the position of the light-blocking foam in the Y-axis direction, providing better stability for the light-blocking foam.

[0036] In another embodiment, such as Figure 1 As shown, the contact between the light-blocking foam and the first and second front cover ribs is an interference fit, avoiding light interference at the point where the light-blocking foam abuts the first and second front cover ribs. Specifically, the light-blocking foam has an interference fit with the first front cover rib in the X-axis direction and with the second front cover rib in the Y-axis direction. The first and second front cover ribs simultaneously define the position of the light-blocking foam and provide stable support, preventing the light-blocking foam from over-constraining the lens. Furthermore, the interference fit also prevents light interference at the point where the light-blocking foam abuts the first and second front cover ribs, further ensuring the lens's imaging performance.

[0037] In another embodiment, such as Figure 1 , Figure 4As shown, the rear end of the light-shielding foam is connected to the lens base by an abutment, which is used to limit the movement of the light-shielding foam at the rear end. The rear end of the light-shielding foam and the lens base can be connected by an abutment, by adhesive, or by other forms of fixing. This connection can support and limit the movement of the light-shielding foam at the rear end, ensuring its stability while preventing interference from light.

[0038] In another embodiment, such as Figure 1 As shown, the lens aperture is interference-fitted with the lens, providing stable support and reducing astigmatism interference. The lens aperture is located on the light-blocking foam, and the interference fit completely blocks internal light from entering the lens through the gap between the foam and the lens, which greatly benefits the image quality. Furthermore, it eliminates the appearance of uneven gaps around the lens.

[0039] In another embodiment, such as Figure 1 , Figure 5 As shown, the frontmost part of the front cover unit is the front cover housing, and the lens glass is bonded to the inner wall of the front cover housing. The rear end of the lens has a threaded groove, and the lens is connected to the lens base through the threaded groove or other connection methods. By moving the light-blocking foam to the rear end, the lens glass is fitted against the inner wall of the front cover without directly contacting the light-blocking foam, which completely separates the light-blocking foam from the lens glass, ensuring the visual effect when the lens field of view is wide-angle, and making the lens more adaptable. The lens is fixed to the lens base by the connection method of the threaded groove at the bottom of the lens, or by the connection method of glue, providing sufficient stability for the lens.

[0040] In another embodiment, such as Figure 1 As shown, the gap between the lens glass and the light-blocking foam is between 2-5mm, and the gap between the lens front end and the lens glass is between 1-4mm, to avoid the light-blocking foam overly restricting the lens. Specifically, the flexible setting of these gaps (2-5mm between the lens glass and the light-blocking foam, and 1-4mm between the lens front end and the lens glass) prevents the light-blocking foam from overly restricting the lens, ensuring a wide-angle effect for the lens's field of view.

[0041] In another embodiment, such as Figure 1 As shown, the first front cover rib, the second front cover rib, and the front cover shell are designed as a single unit. By manufacturing the first front cover rib, the second front cover rib, and the front cover shell in a single integrated molding process, this design ensures a more reliable connection between the first front cover rib, the second front cover rib, and the front cover shell, simplifies the connection method, and improves the overall strength and stability.

[0042] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An installation structure for a camera lens light-shielding foam, characterized in that, Including the front cover unit, light-blocking foam, and lens unit; The light-shielding foam has a lens hole; The lens unit is provided with a lens and a lens base. The lens is connected to the lens base, and the end of the lens away from the lens base is inserted into the lens hole, so that the light-blocking foam wraps around the outer periphery of the lens. The front cover unit is provided with a front cover rib and a lens glass. The lens glass is located on the side of the lens away from the lens base. The front cover rib is located between the lens glass and the lens. The front cover rib is located on the periphery of the lens glass so that it does not obstruct the lens and the lens glass. The light-blocking foam is disposed between the front cover rib and the lens base, and there is a gap between the light-blocking foam and the lens glass.

2. The mounting structure of a camera lens light-shielding foam according to claim 1, characterized in that, The front cover ribs are arranged sequentially from the inside to the outside as a first front cover rib and a second front cover rib. Both the first and second front cover ribs extend in the same direction along the X-axis, and the extension length of the second front cover rib in the X-axis direction is 3-15mm greater than that of the first front cover rib.

3. The mounting structure of a camera lens light-shielding foam according to claim 2, characterized in that, The end of the light-blocking foam near the lens glass abuts against the first front cover rib along the X-axis, which is used to limit the light-blocking foam in the X-axis direction.

4. The mounting structure of a camera lens light-shielding foam according to claim 2, characterized in that, The end of the light-blocking foam furthest from the lens abuts against the second front cover rib along the Y-axis, which is used to limit the light-blocking foam in the Y-axis direction.

5. The mounting structure of a camera lens light-shielding foam according to claim 2, characterized in that, The light-blocking foam is in contact with the first and second front cover ribs in an interference fit to avoid light interference at the point where the light-blocking foam touches the first and second front cover ribs.

6. The mounting structure of a camera lens light-shielding foam according to claim 1, characterized in that, The rear end of the light-blocking foam is connected to the lens base by an abutment, which is used to limit the movement of the light-blocking foam at the rear end.

7. The mounting structure of a camera lens light-shielding foam according to claim 1, characterized in that, The lens aperture is interference-fitted with the lens and provides stable support for the lens, reducing astigmatic interference.

8. The mounting structure of a camera lens light-shielding foam according to claim 1, characterized in that, The front end of the front cover unit is the front cover housing, and the lens glass is bonded to the inner wall of the front cover housing; the rear end of the lens is provided with a threaded groove, and the lens is connected to the lens base through the threaded groove or glue.

9. The mounting structure of a camera lens light-shielding foam according to claim 1, characterized in that, The gap between the lens glass and the light-blocking foam is between 2-5mm, and the gap between the front end of the lens and the lens glass is between 1-4mm, to avoid the light-blocking foam from over-constraining the lens.

10. The mounting structure of a camera lens light-shielding foam according to claim 2, characterized in that, The frontmost part of the front cover unit is the front cover shell, and the first front cover rib and the second front cover rib are integrated with the front cover shell.

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