Structure of a camera lens with electromagnetic shielding

Abstract

This utility model relates to the field of lens structures and discloses a camera lens structure with electromagnetic shielding, including a front glass and a rear glass. The front glass is mounted at the front end of a housing; the rear glass is mounted at the rear end of the housing. Conductive films are provided on the outer surface of the housing, the side of the front glass away from the inner side of the housing, and the side of the rear glass away from the inner side of the housing. The beneficial effect of this utility model is that the conductive films of the front and rear glass contact the surface of the housing, forming good conductivity. This makes the entire lens form a closed Faraday cage, isolating electromagnetic radiation and preventing electromagnetic waves from other devices from penetrating the camera lens glass and reaching sensitive components such as CMOS image sensors, thereby ensuring stable output video signals and clear image quality.

Description

Technical Field

[0001] This utility model relates to the field of lens structure, specifically to a structure for a camera lens with electromagnetic shielding. Background Technology

[0002] Consumers' demand for multifunctional electronic products has led mobile phone manufacturers to integrate more functional modules (such as mobile phone photography, video editing, games, AR / VR, etc.) into a single device.

[0003] Because electronic products are highly integrated and have many functions, electromagnetic interference can occur between various devices within the product. Since camera lenses are made of glass, electromagnetic waves can penetrate the glass and reach sensitive components such as the CMOS image sensor. When the CMOS image sensor is affected by the electromagnetic energy emitted by the electromagnetic interference source, it can cause unstable output video signals, resulting in defects such as screen tearing, stripes, or white noise. Utility Model Content

[0004] The technical problem this invention aims to solve is that electromagnetic waves from other devices inside electronic products can penetrate the glass of a camera lens and directly reach sensitive components such as CMOS image sensors, causing unstable output video signals and resulting in defects such as screen tearing, stripes, or white noise. The purpose is to provide a camera lens structure with electromagnetic shielding, which allows the conductive films of the front and rear glass to conduct electricity in contact with the surface of the housing, forming a closed Faraday cage for the entire lens, thus isolating electromagnetic radiation and ensuring stable output video signals and clear image quality.

[0005] This utility model is achieved through the following technical solution:

[0006] A camera lens structure with electromagnetic shielding includes a front glass and a rear glass. The front glass is mounted on the front end of a housing, and the rear glass is mounted on the rear end of the housing. Conductive films are provided on the outer surface of the housing, the side of the front glass away from the inner side of the housing, and the side of the rear glass away from the inner side of the housing.

[0007] The beneficial effect of this utility model is that by providing conductive films on the outer surface of the housing, the side of the front glass away from the inner side of the housing, and the side of the rear glass away from the inner side of the housing, the conductive films of the front and rear glass are in contact with the surface of the housing, forming good conductivity. This makes the entire lens form a closed Faraday cage, which isolates electromagnetic radiation and prevents electromagnetic waves from other devices from penetrating the glass of the camera lens and reaching sensitive components such as CMOS image sensors, thereby ensuring stable output video signals and clear image quality.

[0008] In some embodiments, the housing includes a front cover and a lens barrel, the front cover being detachably connected to one end of the lens barrel, and the housing being made of 6061 aluminum alloy. The detachable connection of the front cover and lens barrel facilitates replacement and maintenance.

[0009] In some embodiments, the lens barrel is cylindrical, with one end connected to the front cover and the other end having a through hole for the protruding end of the rear glass to extend out.

[0010] In some embodiments, the system further includes a lens assembly connected to the inside of the lens barrel, with the rear end glass abutting against the lens assembly. The lens assembly is positioned by connecting it inside the lens barrel and abutting against the rear end glass.

[0011] In some embodiments, the lens assembly includes a plurality of lenses and a plurality of first isolation gaskets. The edges of two adjacent lenses are separated by corresponding first isolation gaskets, and the edge of the rear end glass is separated from the edge of an adjacent lens by a corresponding first isolation gasket. By setting a plurality of first isolation gaskets to separate adjacent lenses and the rear end glass from each other, direct contact is prevented, the positioning effect of the lenses is improved, and the imaging quality is ensured.

[0012] In some embodiments, the first isolation gasket is annular and made of polytetrafluoroethylene. By setting the first isolation gasket to an arc shape and installing it on the edge of the lens, adjacent lenses can be blocked without affecting the lens imaging.

[0013] In some embodiments, a second isolation gasket is further included. The second isolation gasket is located inside the end of the lens barrel connected to the front cover, and the edge of the front end glass is separated from the edge of the adjacent lens by a corresponding second isolation gasket. By providing a second isolation gasket between the edge of the front end glass and the adjacent lens glass, direct contact between the two is prevented, improving the positioning effect of the lens and ensuring image quality.

[0014] In some embodiments, the second isolation gasket is annular, and its inner cavity is a conical hole. The protruding end of the lens adjacent to the front end glass is located within the inner cavity of the second isolation gasket. The second isolation gasket is made of polytetrafluoroethylene (PTFE). By making the inner cavity of the second isolation gasket a conical hole and placing the protruding end of the lens adjacent to the front end glass within the conical hole of the second isolation gasket, the second isolation gasket is prevented from obstructing the lens imaging.

[0015] In some embodiments, the front cover is provided with a front mounting hole, through which the protruding end of the front glass extends. The front cover is also provided with a tapered hole that communicates with the front mounting hole and is located on the outer side of the front cover. By providing a front mounting hole on the front cover for the protruding end of the front glass to pass through, and providing a tapered hole on the front cover that communicates with the front mounting hole, the light-transmitting area of ​​the front glass is increased.

[0016] In some embodiments, the conductive film includes a first conductive oxide film, a second conductive film, a third conductive film, and a fourth conductive oxide film. The first conductive oxide film is disposed on the surface of the front cover, the second conductive film is disposed on the side of the front end glass away from the lens assembly, the third conductive film is disposed on the side of the rear end glass away from the lens assembly, and the fourth conductive oxide film is disposed on the outer surface of the lens barrel. The excellent conductivity of the conductive film allows the entire lens to form a closed Faraday cage, effectively isolating electromagnetic radiation.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0018] 1. By providing conductive films on the outer surface of the housing, the side of the front glass away from the inner side of the housing, and the side of the rear glass away from the inner side of the housing, the conductive films of the front and rear glass are in contact with the surface of the housing, forming good conductivity. This makes the entire lens form a closed Faraday cage, which isolates electromagnetic radiation and prevents electromagnetic waves from other devices from penetrating the glass of the camera lens and reaching sensitive components such as CMOS image sensors, thereby ensuring stable output video signals and clear image quality.

[0019] 2. By setting several first isolation gaskets to separate adjacent lenses and rear glass from each other, direct contact is prevented, the positioning effect of the lenses is improved, and the imaging quality is ensured. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a central sectional view of the present invention;

[0022] Figure 2 This is an exploded view of the present invention.

[0023] The attached diagram shows the markings and corresponding component names:

[0024] Front cover 1, first conductive oxide layer 11, front mounting hole 12, tapered hole 13, front glass 2, second conductive oxide layer 21, lens assembly 3, rear glass 4, third conductive oxide layer 41, lens barrel 5, fourth conductive oxide layer 51, second insulating gasket 60, first insulating gasket 61. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0026] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 limiting the scope of protection of this utility model.

[0028] The terms "first," "second," etc., used in this utility model are merely for clarity of description and are not intended to limit any order or emphasize importance. Furthermore, the term "connection" as used herein, unless otherwise specified, can refer to a direct connection or an indirect connection via other components.

[0029] Example

[0030] like Figures 1-2As shown in the figure, this embodiment 1 provides a structure for a camera lens with electromagnetic shielding, including a front glass 2 and a rear glass 4. The front glass 2 is installed at the front end of the housing; the rear glass 4 is installed at the rear end of the housing. Conductive films are provided on the outer surface of the housing, the side of the front glass 2 away from the inner side of the housing, and the side of the rear glass 4 away from the inner side of the housing. This makes the entire lens form a closed Faraday cage, which isolates electromagnetic radiation and prevents electromagnetic waves from other devices from penetrating the glass of the camera lens and reaching sensitive components such as CMOS image sensors, thereby ensuring stable output video signals and clear image quality.

[0031] See Figure 1 and Figure 2 The housing includes a front cover 1 and a lens barrel 5, with the front cover 1 detachably connected to one end of the lens barrel 5. This detachable connection facilitates replacement and maintenance. The housing is made of 6061 aluminum alloy. Specifically, an internal thread can be provided on the inner side of the front cover 1, and an external thread can be provided on the outer side of the lens barrel 5, with the internal and external threads engaging.

[0032] See Figure 1 and Figure 2 The lens barrel 5 is cylindrical, with one end connected to the front cover 1 and the other end having a through hole for the protruding end of the rear glass 4 to extend out.

[0033] See Figure 1 and Figure 2 It also includes a lens assembly 3, which is connected to the inside of the lens barrel 5, and the rear glass 4 abuts against the lens assembly 3. By connecting the lens assembly 3 inside the lens barrel 5 and abutting against the rear glass 4, the lens assembly 3 is limited in position.

[0034] See Figure 1 and Figure 2 The lens assembly 3 includes several lenses and several first isolation gaskets 61. The edges of two adjacent lenses are separated by corresponding first isolation gaskets 61, and the edge of the rear glass 4 is separated from the edge of the adjacent lens by corresponding first isolation gaskets 61. By setting several first isolation gaskets 61 to separate adjacent lenses and the rear glass 4 in pairs, direct contact is prevented, the positioning effect of the lenses is improved, and the imaging quality is ensured.

[0035] See Figure 1 and Figure 2 The first isolation gasket 61 is annular in shape and is made of polytetrafluoroethylene. By setting the first isolation gasket 61 to an arc shape and installing it on the edge of the lens, adjacent lenses can be blocked without affecting the lens imaging.

[0036] See Figure 1 and Figure 2 It also includes a second isolation gasket 60, which is located on the inner side of the end where the lens barrel 5 connects to the front cover 1. The edge of the front glass 2 is separated from the edge of the adjacent lens by the corresponding second isolation gasket 60. By setting the second isolation gasket 60 between the edge of the front glass 2 and the adjacent lens glass, direct contact between the two is prevented, improving the positioning effect of the lens and ensuring image quality.

[0037] See Figure 1 and Figure 2 The second isolation gasket 60 is annular, and its inner cavity is a conical hole 13. The protruding end of the lens adjacent to the front glass 2 is located in the inner cavity of the second isolation gasket 60. The second isolation gasket 60 is made of polytetrafluoroethylene. By making the inner cavity of the second isolation gasket 60 a conical hole 13 and placing the protruding end of the lens adjacent to the front glass 2 in the conical hole 13 of the second isolation gasket 60, the second isolation gasket 60 is prevented from obstructing the lens imaging.

[0038] See Figure 1 and Figure 2 The front cover 1 is provided with a front mounting hole 12, through which the protruding end of the front glass 2 extends. The front cover 1 is also provided with a tapered hole 13, which communicates with the front mounting hole 12 and is located on the outside of the front cover 1. By providing a front mounting hole 12 on the front cover 1 for the protruding end of the front glass 2 to pass through, and a tapered hole 13 communicating with the front mounting hole 12, the light-transmitting area of ​​the front glass 2 is increased.

[0039] See Figure 2 The conductive film includes a first conductive oxide film 11, a second conductive film 21, a third conductive film 41, and a fourth conductive oxide film 51. The first conductive oxide film 11 is disposed on the surface of the front cover 1, the second conductive film 21 is disposed on the side of the front end glass 2 away from the lens assembly, the third conductive film 41 is disposed on the side of the rear end glass 4 away from the lens assembly, and the fourth conductive oxide film 51 is disposed on the outer surface of the lens barrel 5. The excellent conductivity of the conductive film allows the entire lens to form a closed Faraday cage, effectively isolating electromagnetic radiation.

[0040] In this invention, the conductive oxide layer 6061 refers to the oxide film layer formed on 6061 aluminum alloy through a conductive oxidation process.

[0041] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A structure of a camera lens with electromagnetic shielding, characterized by, include: Front-end glass, which is mounted at the front end of the housing; The rear glass is installed at the rear end of the housing. Conductive films are provided on the outer surface of the housing, the side of the front glass away from the inner side of the housing, and the side of the rear glass away from the inner side of the housing.

2. The structure of a camera lens with electromagnetic shielding according to claim 1, characterized in that, The housing includes a front cover and a lens barrel, the front cover being detachably connected to one end of the lens barrel, and the housing is made of 6061 aluminum alloy.

3. The structure of a camera lens with electromagnetic shielding according to claim 2, characterized in that, The lens barrel is cylindrical, with one end connected to the front cover and the other end having a through hole for the protruding end of the rear glass to extend out.

4. The structure of a camera lens with electromagnetic shielding according to claim 2, characterized in that, It also includes a lens assembly connected to the inside of the lens barrel, and the rear glass abuts against the lens assembly.

5. The structure of a camera lens with electromagnetic shielding according to claim 4, characterized in that, The lens assembly includes several lenses and several first isolation gaskets. The edges of two adjacent lenses are separated by corresponding first isolation gaskets, and the edge of the rear glass is separated from the edge of the adjacent lens by corresponding first isolation gaskets.

6. The structure of a camera lens with electromagnetic shielding according to claim 5, characterized in that, The first isolation gasket is annular in shape and is made of polytetrafluoroethylene.

7. The structure of a camera lens with electromagnetic shielding according to claim 4, characterized in that, It also includes a second isolation gasket, which is located on the inner side of the end where the lens barrel is connected to the front cover, and the edge of the front glass is separated from the edge of the adjacent lens by the corresponding second isolation gasket.

8. The structure of a camera lens with electromagnetic shielding according to claim 7, characterized in that, The second isolation gasket is annular in shape, and the inner cavity of the second isolation gasket is conical in shape. The protruding end of the lens adjacent to the front glass is located in the inner cavity of the second isolation gasket. The material of the second isolation gasket is polytetrafluoroethylene.

9. The structure of a camera lens with electromagnetic shielding according to claim 2, characterized in that, The front cover is provided with a front mounting hole, and the protruding end of the front glass extends out from the front mounting hole. The front cover is also provided with a tapered hole, which communicates with the front mounting hole and is located on the outside of the front cover.

10. The structure of a camera lens with electromagnetic shielding according to claim 4, characterized in that, The conductive film includes a first conductive oxide film, a second conductive film, a third conductive film, and a fourth conductive oxide film. The first conductive oxide film is disposed on the surface of the front cover, the second conductive film is disposed on the side of the front end glass away from the lens assembly, the third conductive film is disposed on the side of the rear end glass away from the lens assembly, and the fourth conductive oxide film is disposed on the outer surface of the lens barrel.

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