Anti-deflection lens structure, camera module and electronic device

Abstract

The application discloses a kind of anti-deflection lens structure, camera module and electronic equipment, and the anti-deflection lens structure includes lens, lens seat and elastic piece, the outer circumferential surface of lens is provided with outer thread and the lens straight wall located at the image side end of outer thread;The inner circumferential surface of lens seat is provided with inner thread and the lens seat straight wall located at the image side end of inner thread, and lens is connected by outer thread and inner thread and is screwed, and there is gap between lens straight wall and lens seat straight wall, wherein, lens straight wall or lens seat straight wall is opened with annular accommodating groove;Elastic piece is set in accommodating groove, and elastic piece partially protrudes from accommodating groove, and elastic piece occurs elastic deformation after lens and lens seat are screwed connection.The anti-deflection lens mechanism of the application can automatically correct the deviation and inclination of lens optical axis.

Description

Technical Field

[0001] This application relates to the field of lens assembly technology, specifically to an anti-skew lens structure, a camera module, and electronic equipment. Background Technology

[0002] In the manufacturing of camera modules, lenses with external threads are typically fixed by screwing them into lens mounts with internal threads. However, the threaded fit between the lens and the mount inevitably introduces gaps. This causes the optical axis of the lens to easily shift and tilt relative to the central axis of the mount after it is tightened. This shift and tilt can lead to the image plane produced by the lens being non-parallel or misaligned with the target surface of the image sensor, resulting in a decrease in image quality for many lenses that originally had good resolution after assembly. Utility Model Content

[0003] In view of the above, it is necessary to propose an anti-skew lens structure, camera module and electronic device to automatically correct the offset and tilt of the lens optical axis.

[0004] In a first aspect, embodiments of this application provide an anti-skewing lens structure, comprising: a lens having an external thread on its outer peripheral surface and a lens straight wall located at the image-side end of the external thread; a lens mount having an internal thread on its inner peripheral surface and a lens mount straight wall located at the image-side end of the internal thread, the lens and the lens mount being screwed together by the external thread and the internal thread, and a gap being formed between the lens straight wall and the lens mount straight wall, wherein the lens straight wall or the lens mount straight wall has an annular receiving groove; and an elastic member disposed within the receiving groove, the elastic member partially protruding from the receiving groove, the elastic member undergoing elastic deformation after the lens and the lens mount are screwed together.

[0005] The aforementioned anti-skew lens structure, through the inclusion of a receiving groove and an elastic element, ensures that the elastic element, partially protruding from the receiving groove, provides stable support and accommodation for the elastic element while allowing it to contact the corresponding straight wall. This causes the elastic element to undergo elastic deformation due to compression from the straight wall. During the lens screwing into the lens mount, the elastic element undergoes elastic deformation under compression, generating a uniform radial rebound force. This rebound force automatically counteracts and corrects lens movement and skew caused by thread gaps, ensuring that the optical axis of the lens coincides with the central axis of the lens mount. This, in turn, ensures that when the anti-skew lens structure is applied to a camera module, the lens, lens mount, and image sensor of the camera module are coaxially aligned, guaranteeing the imaging quality of the camera module. Simultaneously, the elastic element fills the gap between the straight wall of the lens and the straight wall of the lens mount, forming a physical barrier that effectively prevents debris generated during thread engagement from falling into the gap and contaminating the image sensor, ensuring the imaging quality of the camera module.

[0006] In one embodiment, the gap between the lens straight wall and the lens mount straight wall ranges from 0.05 mm to 0.1 mm.

[0007] The aforementioned anti-skew lens structure, by reasonably limiting the gap range to 0.05mm to 0.1mm, ensures that the lens and lens mount can be smoothly screwed together. However, when the gap range is less than 0.05mm, considering the manufacturing tolerances of the lens and lens mount, zero gap or even interference fit may easily occur during assembly, causing the lens to fail to be assembled to the lens mount or even damage the lens; when the gap range is greater than 0.1mm, the elastic element may be squeezed and stuck into the excessive gap when subjected to pressure, causing the lens to jam during assembly and thus preventing it from being assembled in place.

[0008] In one embodiment, the cross-sectional shape of the receiving groove is rectangular, arc-shaped, flared trapezoidal, narrow trapezoidal, or V-shaped.

[0009] The aforementioned anti-skew lens structure ensures that the receiving groove can accommodate the elastic element by defining the cross-sectional shape of the receiving groove.

[0010] In one embodiment, the elastic element is a closed annular structure, an open annular structure, or a discontinuous segmented annular structure.

[0011] The aforementioned anti-skew lens structure, by limiting the elastic element to a closed ring, an open ring, or a discontinuous segmented ring structure, enables the elastic element to be compatible with the dimensional tolerances of the receiving groove, thereby improving the versatility of the elastic element.

[0012] In one embodiment, the external thread protrudes relative to the lens straight wall, and the lens mount straight wall protrudes relative to the internal thread.

[0013] The aforementioned anti-skew lens structure, by limiting the external thread to protrude relative to the lens straight wall and limiting the lens mount straight wall to protrude relative to the internal thread, makes the external thread and the lens mount straight wall overlap in the optical axis direction. The object side end face of the lens mount straight wall can serve as a mechanical limiting surface. When the lens is screwed in, it abuts against the corresponding structure of the lens to limit the assembly position of the lens, prevent damage to the lens due to excessive screwing, and ensure assembly accuracy and imaging stability.

[0014] In one embodiment, the lens straight wall is connected to the external thread via a tapered surface, and a groove is provided between the lens mount straight wall and the internal thread, with the internal thread protruding relative to the bottom of the groove.

[0015] The aforementioned anti-skew lens structure, by setting the aforementioned conical surface, plays a preliminary guiding and centering role in the initial screwing of the lens, improving the thread connection accuracy between the lens and the lens mount; by setting the aforementioned groove, the groove provides tolerance space for internal thread machining and assembly, effectively addressing manufacturing tolerances and helping to ensure assembly accuracy.

[0016] In one embodiment, the lens is further provided with a guide slope connected to the image side end of the lens wall, the guide slope being inclined toward the optical axis.

[0017] The aforementioned anti-skew lens structure, by setting a guide slope at the image side end of the lens's straight wall, can guide the lens smoothly and centeredly into the lens mount during the process of screwing the lens into the mount, facilitating assembly operations.

[0018] In one embodiment, the wire diameter of the elastic element is greater than the sum of the groove depth of the receiving groove and the gap.

[0019] The aforementioned anti-skew lens structure ensures that the elastic element can partially protrude from the receiving groove by limiting the wire diameter of the elastic element to be greater than the sum of the groove depth and the gap. This ensures that the elastic element is always in a pre-compressed state after the lens and lens mount are assembled. The elastic element provides a continuous and stable radial correction force for the lens, ensuring that the elastic element can effectively correct the optical axis skew of the lens and keep the lens position stable.

[0020] Secondly, embodiments of this application also provide a camera module, including a circuit board, an image sensor, and an anti-skew lens structure as described in any of the above embodiments. The image sensor is disposed on the circuit board, the lens mount of the anti-skew lens structure is mounted on the circuit board, and the image sensor is located on the image side of the lens.

[0021] The aforementioned camera module's anti-skew lens structure incorporates a receiving groove and an elastic element. The elastic element is placed within the receiving groove, with a portion protruding beyond it. This ensures stable support and containment of the elastic element while allowing it to contact the corresponding straight wall. The elastic element then undergoes elastic deformation due to compression from the straight wall. During the lens's insertion into the lens mount, the elastic element deforms under pressure, generating a uniform radial rebound force. This rebound force automatically counteracts and corrects lens movement and skew caused by thread gaps, ensuring the lens's optical axis coincides with the lens mount's central axis. This, in turn, ensures that when the anti-skew lens structure is applied to the camera module, the lens, lens mount, and the camera module's image sensor are coaxially aligned, guaranteeing the camera module's imaging quality. Simultaneously, the elastic element fills the gap between the lens's straight wall and the lens mount's straight wall, forming a physical barrier that effectively prevents debris generated during thread engagement from falling into and contaminating the image sensor, further ensuring the camera module's imaging quality.

[0022] Thirdly, embodiments of this application also provide an electronic device, including the camera module described in the above embodiments.

[0023] The aforementioned electronic device features an anti-skew lens structure in its camera module. This structure incorporates a receiving groove and an elastic element. The elastic element is positioned within the receiving groove, with a portion protruding beyond it. This design ensures stable support and accommodate for the elastic element while allowing it to contact the corresponding straight wall. The elastic element is then subjected to compression from the straight wall, resulting in elastic deformation. During the lens's insertion into the lens mount, the elastic element undergoes elastic deformation and generates a uniform radial rebound force. This rebound force automatically counteracts and corrects lens movement and skew caused by thread gaps, ensuring the optical axis of the lens coincides with the central axis of the lens mount. This, in turn, ensures that when the anti-skew lens structure is applied to the camera module, the lens, lens mount, and image sensor of the camera module are coaxially aligned, guaranteeing the imaging quality of the camera module. Simultaneously, the elastic element fills the gap between the straight wall of the lens and the straight wall of the lens mount, forming a physical barrier that effectively prevents debris generated during thread engagement from falling into and contaminating the image sensor, further ensuring the imaging quality of the camera module. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the anti-skew lens structure provided in the embodiments of this application.

[0025] Figure 2 yes Figure 1 An enlarged schematic diagram of region II in the anti-skew lens structure shown.

[0026] Figure 3 This is a schematic diagram of another elastic element in the anti-skew lens structure provided in the embodiments of this application.

[0027] Figure 4 This is a schematic diagram of another elastic element in the anti-skew lens structure provided in the embodiments of this application.

[0028] Figure 5 yes Figure 1 An enlarged schematic diagram of another embodiment of region II in the anti-skew lens structure shown.

[0029] Figure 6 yes Figure 1 An enlarged schematic diagram of another embodiment of region II in the anti-skew lens structure shown.

[0030] Explanation of main component symbols: Anti-skew lens structure 100, lens 10, external thread 11, lens straight wall 12, conical surface 13, guide bevel 14, lens mount 20, internal thread 21, lens mount straight wall 22, groove 23, receiving groove 30, elastic element 40, gap 50, optical axis O. Detailed Implementation

[0031] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0032] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are 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, and therefore should not be construed as a limitation of this application. 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0035] Please see Figure 1 and Figure 2 This application provides an anti-skew lens structure 100, which includes a lens 10, a lens mount 20, and an elastic element 40. The anti-skew lens structure 100 can automatically correct the offset and tilt of the optical axis O of the lens 10, so that the optical axis O of the lens 10 coincides with the central axis of the lens mount 20. When the anti-skew lens 10 is applied in a camera module, it can ensure that the lens 10, the lens mount 20, and the image sensor of the camera module are coaxially arranged.

[0036] The outer peripheral surface of the lens 10 is provided with an external thread 11 and a lens straight wall 12 located at the image-side end of the external thread 11. The lens 10 is composed of a lens barrel (not shown) and a lens group (not shown) disposed within the lens barrel. Both the external thread 11 and the lens straight wall 12 are provided on the outer peripheral surface of the lens barrel. The specific structure of the lens 10 will not be described in detail in this embodiment. The inner peripheral surface of the lens mount 20 is provided with an internal thread 21 and a lens mount straight wall 22 located at the image-side end of the internal thread 21. The internal thread 21 mates with the external thread 11. The lens 10 and the lens mount 20 are screwed together by the external thread 11 and the internal thread 21. There is a gap 50 between the lens straight wall 12 and the lens mount straight wall 22. The lens straight wall 12 or the lens mount straight wall 22 has an annular receiving groove 30. After the internal thread 21 and the external thread 11 are screwed together, there is a thread gap between them. In this embodiment, the receiving groove 30 is formed on the lens mount straight wall 22. The elastic element 40 is disposed in the receiving groove 30, and the elastic element 40 partially protrudes out of the receiving groove 30 to contact the corresponding lens straight wall 12. The elastic element 40 undergoes radial elastic deformation after the lens 10 and the lens mount 20 are screwed together. The elastic element 40 can be a closed annular structure, for example, the elastic element 40 is an O-ring.

[0037] Understandably, in other embodiments, please refer to Figure 3 The elastic element 40 can also be an open annular structure, such as a C-shaped rubber ring. In this way, by limiting the elastic element 40 to an open annular structure, the elastic element 40 can be compatible with the dimensional tolerances of the receiving groove 30, and the elastic element 40 has strong versatility.

[0038] Understandably, in other embodiments, please refer to Figure 4 The elastic element 40 can also be a discontinuous segmented annular structure, with the discontinuous segmented annular structures evenly distributed within the receiving groove 30. For example, the elastic element 40 can be a discontinuous four-segment annular structure, with the four segments evenly distributed within the receiving groove 30. Understandably, the elastic element 40 can also be a discontinuous two-segment annular structure, with the two segments evenly distributed within the receiving groove 30. Alternatively, the elastic element 40 can be any number of segmented annular structures. This application embodiment does not specifically limit this; the specific configuration can be determined according to actual circumstances.

[0039] Understandably, in other embodiments, the receiving groove 30 may also be formed on the lens straight wall 12, and correspondingly, the elastic member 40 protrudes partially from the receiving groove 30 to contact the corresponding lens mount straight wall 22.

[0040] The anti-skew lens structure 100 of this embodiment provides a receiving groove 30 on the lens mount straight wall 22 and an elastic member 40 within the receiving groove 30, with the elastic member 40 partially protruding from the receiving groove 30. This ensures that the receiving groove 30 provides stable support and accommodation for the elastic member 40, while allowing the elastic member 40 to contact the corresponding lens straight wall 12. Consequently, the elastic member 40 undergoes elastic deformation due to the compression of the lens straight wall 12. During the screwing of the lens 10 into the lens mount 20, the external thread 11 engages with the internal thread 21. The elastic member 40 undergoes elastic deformation due to the compression of the lens straight wall 12, generating a uniform radial rebound force. This rebound force can automatically offset and correct the movement and skew of the lens 10 caused by thread gaps, ensuring that the optical axis O of the lens 10 coincides with the central axis of the lens mount 20. This ensures that when the anti-skew lens structure 100 is applied in a camera module, the lens 10, lens mount 20, and the image sensor of the camera module are coaxially arranged, ensuring the imaging quality of the camera module. Meanwhile, the elastic element 40 fills the gap 50 between the lens straight wall 12 and the lens mount straight wall 22, forming a physical barrier that can effectively prevent debris generated by the thread engagement from falling into the image sensor through the gap 50 and contaminating it, thus ensuring the imaging quality of the camera module.

[0041] In some embodiments, the gap 50 between the lens straight wall 12 and the lens mount straight wall 22 can range from 0.05mm to 0.1mm, for example, the gap 50 ranges from 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm, 0.1mm, etc. Thus, by reasonably limiting the gap 50 to the range of 0.05mm to 0.1mm, it is ensured that the lens 10 and the lens mount 20 can be smoothly screwed together. However, when the gap 50 is less than 0.05mm, considering the manufacturing tolerances of the lens 10 and the lens mount 20, zero clearance or even interference fit may easily occur during assembly, causing the lens 10 to fail to be assembled to the lens mount 20 or even damaging the lens 10; when the gap 50 is greater than 0.1mm, the elastic element 40 is easily squeezed and stuck into the excessively large gap 50 when compressed, causing the lens 10 to jam during assembly and thus unable to be assembled in place.

[0042] In some embodiments, the wire diameter of the elastic element 40 is greater than the sum of the groove depth and the gap 50 of the receiving groove 30. Thus, by limiting the wire diameter of the elastic element 40 to be greater than the sum of the groove depth and the gap 50 of the receiving groove 30, it is ensured that the elastic element 40 can partially protrude from the receiving groove 30, thereby ensuring that the elastic element 40 is always in a pre-compressed state after the lens 10 and the lens mount 20 are assembled. The elastic element 40 provides a continuous and stable radial correction force to the lens 10, ensuring that the elastic element 40 can effectively correct the optical axis O misalignment of the lens 10 and maintain the stable position of the lens 10.

[0043] In some embodiments, the cross-sectional shape of the receiving groove 30 can be rectangular, wherein the cross-section is parallel to the optical axis O. Thus, by defining the cross-sectional shape of the receiving groove 30 as rectangular, it is ensured that the receiving groove 30 can accommodate the elastic member 40.

[0044] Understandably, in other embodiments, please refer to Figure 5 The cross-sectional shape of the receiving groove 30 can also be a superior arc, wherein the superior arc is one type of circular arc. Thus, by limiting the cross-sectional shape of the receiving groove 30 to a superior arc, when the elastic member 40 is placed in the receiving groove 30, the relatively contracted opening of the superior arc can limit the elastic member 40, preventing the elastic member 40 from detaching from the receiving groove 30 during the extrusion process, and ensuring the reliability and stability of the elastic member 40.

[0045] Understandably, in other embodiments, please refer to Figure 6 The cross-sectional shape of the receiving groove 30 can also be a narrow trapezoid, which can be understood as setting the short side of the trapezoid as an opening. In this way, by limiting the cross-sectional shape of the receiving groove 30 to a narrow trapezoid, when the elastic member 40 is placed in the receiving groove 30, the relatively contracted opening of the narrow trapezoid can limit the elastic member 40, preventing the elastic member 40 from detaching from the receiving groove 30 during the extrusion process, and ensuring the reliability and stability of the elastic member 40.

[0046] Understandably, in other embodiments, the cross-sectional shape of the receiving groove 30 may also be other arc shape, flared trapezoid, V shape or other shape. Other arc shapes may also include minor arc and semi-circular arc. A flared trapezoid can be understood as setting the long side of the trapezoid as an opening.

[0047] In some embodiments, the external thread 11 protrudes relative to the lens straight wall 12, and the lens mount straight wall 22 protrudes relative to the internal thread 21. Thus, by defining the external thread 11 as protruding relative to the lens straight wall 12 and the lens mount straight wall 22 as protruding relative to the internal thread 21, the external thread 11 and the lens mount straight wall 22 form an overlapping area in the optical axis O direction. The object-side end face of the lens mount straight wall 22 can serve as a mechanical limiting surface, which, by abutting against the corresponding structure of the lens 10 when the lens 10 is screwed in, limits the assembly position of the lens 10, preventing damage to the lens 10 due to over-screwing, and ensuring assembly accuracy and imaging stability.

[0048] In some embodiments, the lens straight wall 12 is connected to the external thread 11 via a conical surface 13, and a groove 23 is provided between the lens mount straight wall 22 and the internal thread 21, with the internal thread 21 protruding from the bottom of the groove 23. Thus, by providing the conical surface 13, it plays a preliminary guiding and centering role during the initial screwing of the lens 10, improving the thread connection accuracy between the lens 10 and the lens mount 20; by providing the groove 23, it provides tolerance space for the machining and assembly of the internal thread 21, effectively addressing manufacturing tolerances and helping to ensure assembly accuracy.

[0049] In some embodiments, the lens 10 is further provided with a guide slope 14 connected to the image-side end of the lens straight wall 12, and the guide slope 14 is inclined toward the optical axis O. Thus, by providing the guide slope 14 at the image-side end of the lens straight wall 12, the guide slope 14 can guide the lens 10 smoothly and centeredly into the lens mount 20 during the process of screwing the lens 10 into the lens mount 20, which facilitates the assembly operation.

[0050] This application also provides a camera module (not shown). The camera module includes a circuit board (not shown), an image sensor (not shown), and an anti-skew lens structure 100 as described in any of the preceding embodiments. The image sensor is disposed on the circuit board, and the lens mount 20 of the anti-skew lens structure 100 is mounted on the circuit board. The image sensor is located on the image side of the lens 10, wherein the lens 10, lens mount 20, and image sensor in the camera module are coaxially arranged. The image sensor may be a complementary metal-oxide-semiconductor (CMOS) image sensor or a charge-coupled device (CCD).

[0051] The aforementioned camera module's anti-skew lens structure 100 incorporates a receiving groove 30 and an elastic element 40. The elastic element 40 is placed within the receiving groove 30, with a portion protruding from it. This ensures stable support and accommodation of the elastic element 40 by the receiving groove 30, while simultaneously allowing the elastic element 40 to contact the corresponding lens wall 12. Consequently, the elastic element 40 undergoes elastic deformation due to pressure from the lens wall 12. During the screwing of the lens 10 into the lens mount 20, the elastic element 40 is compressed, undergoing elastic deformation and generating a uniform radial rebound force. This rebound force automatically counteracts and corrects the movement and skew of the lens 10 caused by thread gaps, ensuring that the optical axis O of the lens 10 coincides with the central axis of the lens mount 20. This, in turn, ensures that when the anti-skew lens structure 100 is applied to the camera module, the lens 10, lens mount 20, and the image sensor of the camera module are coaxially aligned, thus guaranteeing the imaging quality of the camera module. Meanwhile, the elastic element 40 fills the gap 50 between the lens straight wall 12 and the lens mount straight wall 22, forming a physical barrier that can effectively prevent debris generated by the thread engagement from falling into the image sensor through the gap 50 and contaminating it, thus ensuring the imaging quality of the camera module.

[0052] This application also provides an electronic device (not shown in the figures). The electronic device includes the camera module described in the above embodiments. The electronic device can be a security device such as a monitor, and the camera module can be a security lens. It is understood that in other embodiments, the electronic device can also be a mobile phone, drone, tablet computer, smartwatch, thumb camera, vehicle, dashcam, LiDAR, laptop computer, e-book reader, portable multimedia player (PMP), portable telephone, video phone, mobile medical device, wearable device, or other imaging-enabled device.

[0053] In the aforementioned electronic device, the anti-skew lens structure 100 of its camera module incorporates a receiving groove 30 and an elastic element 40. The elastic element 40 is placed within the receiving groove 30, with a portion protruding from the groove. This ensures stable support and accommodation of the elastic element 40 by the receiving groove 30, while simultaneously allowing the elastic element 40 to contact the corresponding lens wall 12. Consequently, the elastic element 40 undergoes elastic deformation due to the pressure from the lens wall 12. During the screwing of the lens 10 into the lens mount 20, the elastic element 40 is compressed, undergoing elastic deformation and generating a uniform radial rebound force. This rebound force automatically counteracts and corrects the movement and skew of the lens 10 caused by thread gaps, ensuring that the optical axis O of the lens 10 coincides with the central axis of the lens mount 20. This, in turn, ensures that when the anti-skew lens structure 100 is applied to the camera module, the lens 10, lens mount 20, and the image sensor of the camera module are coaxially aligned, thus ensuring the imaging quality of the camera module. Meanwhile, the elastic element 40 fills the gap 50 between the lens straight wall 12 and the lens mount straight wall 22, forming a physical barrier that can effectively prevent debris generated by the thread engagement from falling into the image sensor through the gap 50 and contaminating it, thus ensuring the imaging quality of the camera module.

[0054] 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.

[0055] 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. An anti-skew lens structure, characterized in that, include: The lens has an external thread on its outer peripheral surface and a straight lens wall located at the image-side end of the external thread; A lens mount has an internal thread on its inner circumferential surface and a straight wall of the lens mount located at the image-side end of the internal thread. The lens and the lens mount are screwed together by the external thread and the internal thread, and there is a gap between the straight wall of the lens and the straight wall of the lens mount. An annular receiving groove is formed in either the straight wall of the lens or the straight wall of the lens mount. An elastic element is disposed within the receiving groove and partially protrudes from the receiving groove. The elastic element undergoes elastic deformation after the lens and the lens mount are screwed together.

2. The anti-skew lens structure as described in claim 1, characterized in that, The gap between the lens straight wall and the lens mount straight wall ranges from 0.05 mm to 0.1 mm.

3. The anti-skew lens structure as described in claim 1, characterized in that, The cross-sectional shape of the receiving groove is rectangular, arc-shaped, flared trapezoidal, narrow trapezoidal, or V-shaped.

4. The anti-skew lens structure as described in claim 1, characterized in that, The elastic element is a closed ring, an open ring, or a discontinuous segmented ring structure.

5. The anti-skew lens structure as described in claim 1, characterized in that, The external thread protrudes from the straight wall of the lens, and the straight wall of the lens mount protrudes from the internal thread.

6. The anti-skew lens structure as described in claim 1, characterized in that, The lens straight wall is connected to the external thread via a conical surface. A groove is provided between the lens mount straight wall and the internal thread, and the internal thread protrudes from the bottom of the groove.

7. The anti-skew lens structure as described in claim 1, characterized in that, The lens is also provided with a guide slope connected to the image side of the lens wall, and the guide slope is inclined toward the optical axis.

8. The anti-skew lens structure as described in claim 1, characterized in that, The diameter of the elastic element is greater than the sum of the groove depth of the receiving groove and the gap.

9. A camera module, characterized in that, The device includes a circuit board, an image sensor, and an anti-skew lens structure as described in any one of claims 1 to 8, wherein the image sensor is disposed on the circuit board, the lens mount of the anti-skew lens structure is mounted on the circuit board, and the image sensor is located on the image side of the lens.

10. An electronic device, characterized in that, Includes the camera module as described in claim 9.

Images