Lens and camera lens

Abstract

The present application provides a lens and a camera lens. The lens comprises an optical effective part, a mounting part, lens through holes, supporting members and lens bosses; the optical effective part is used for transmitting light rays to form an image; the mounting part surrounds and extends from the optical effective part, and the mounting part comprises an upper surface, a lower surface and a side wall; two ends of the side wall are respectively connected to the upper surface and the lower surface; the lens through holes are formed in the mounting part, and the lens through holes penetrate through the upper surface and the lower surface; the supporting members are arranged on the side wall and located outside the lens through holes and correspond to the lens through holes; and the lens bosses are arranged on the upper surface and / or the lower surface. The camera lens comprises the lens, a lens barrel and a spacer. The spacer is provided with spacer bosses and spacer through holes. The lens and the camera lens structure provided by the present application can prevent deformation of the optical effective part of the lens, effectively improving the optical imaging quality of the lens under high- or low-temperature conditions.

Description

Lens and lens

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese application No. 202311750839.2, filed on December 19, 2023, the entire contents of which are incorporated herein by reference for all purposes. Technical Field

[0003] The present application relates to the technical field of imaging lenses, and in particular to a lens and a lens. Background Art

[0004] Optical lenses have the function of light transmission and are widely used in various imaging fields such as automotive, security, and intelligent manufacturing. As a precision optical component, optical lenses have strict requirements on manufacturing and installation accuracy, and their imaging performance is relatively sensitive to different temperatures. Optical lenses are usually installed in the lens barrel in a superimposed or interlocking manner. During assembly, they are circumferentially fixed by the inner wall of the lens barrel and axially fixed by the locking ring, front ring, spacer and lens barrel. However, under high or low temperature conditions, due to the different axial and radial expansion and contraction of the lens, spacer and lens barrel, extrusion occurs between the components, causing deformation of the optical effective diameter and thus affecting the optical performance; that is, at high temperatures, the radial expansion of traditional lenses is greater than the radial expansion of the lens barrel, resulting in the effective diameter of the lens being squeezed and deformed, resulting in changes in the surface shape and lens curvature radius (the optical effective area is squeezed and affects the imaging), which in turn causes the position of the imaging surface to change, resulting in a decrease in the resolution of the lens.

[0005] Therefore, it is necessary to provide an optical lens that does not affect the optical effective area under high and low temperature conditions to solve the above problems.

[0006] Summary of the Invention

[0007] In response to the above problems, the purpose of this application is to provide a lens and a lens that can avoid deformation of the optically effective part of the lens and have the advantage of excellent imaging quality.

[0008] To achieve the above objectives, the technical solutions adopted in this application are:

[0009] The present application provides a lens, comprising:

[0010] an optically effective portion, the optically effective portion being used for imaging by transmitted light;

[0011] a mounting portion, the mounting portion extending from the optically effective portion in a circumferential manner, the mounting portion comprising an upper surface, a lower surface, and a side wall, with two ends of the side wall connected to the upper surface and the lower surface respectively;

[0012] a lens through hole, the lens through hole being provided on the mounting portion and passing through the upper surface and the lower surface;

[0013] A supporting member, the supporting member is provided on the side wall and is located outside the lens through hole and is provided corresponding to the lens through hole;

[0014] A lens boss is provided on the upper surface and / or the lower surface.

[0015] Further preferably, the lens comprises a plurality of lens through holes and a plurality of supporting members, and the plurality of lens through holes are evenly distributed around the optically effective portion.

[0016] Further preferably, the shape of the lens through hole includes circle, diamond, triangle or crescent.

[0017] Further preferably, the supporting member has an arc shape, a triangle shape or a wave shape.

[0018] Further preferably, the lens includes a plurality of lens bosses, and the plurality of lens bosses are evenly distributed around the light effective portion.

[0019] The present application also provides a lens, comprising the above-mentioned lens and:

[0020] a lens barrel, wherein the inner wall of the lens barrel abuts against the supporting member;

[0021] A spacer, the spacer comprising a spacer body and a light hole formed around the spacer body, the spacer body comprising an upper end surface, a lower end surface, an inner wall surface, and an outer wall surface, the spacer body being provided with a plurality of spacer through holes, the spacer through holes penetrating the inner wall surface and the outer wall surface, the spacer body being provided with a plurality of spacer bosses, the spacer bosses being provided on the upper end surface and / or the lower end surface;

[0022] The spacer boss abuts against the lens.

[0023] Further preferably, the spacer boss abuts against the lens boss.

[0024] Further preferably, the spacer boss is arranged in the lens through hole of the lens.

[0025] Further preferably, the spacer through hole has a shape including a circle, a diamond, a triangle or a crescent.

[0026] Further preferably, the spacer through holes and the spacer bosses are evenly distributed on the spacer.

[0027] The beneficial effects of this application are:

[0028] The lens and lens structure provided by this application can prevent deformation of the optically active portion of the lens. The provision of lens through-holes and supporting members can concentrate the extrusion stress on the lens to the mounting portion, preventing deformation of the optically active portion that would cause changes in the surface shape and radius of curvature, effectively improving the optical imaging quality of the lens in high or low temperature conditions. Furthermore, the structural arrangement of the spacer provides a stable supporting relationship between the lens and the spacer, further protecting the optically active portion of the lens, and improving the optical imaging quality and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] FIG1 is a schematic structural diagram of a lens provided in a first embodiment of the present application;

[0031] FIG2 is a schematic diagram of force simulation of the lens in the first embodiment of the present application;

[0032] FIG3 is a schematic diagram of a stress deformation simulation of a lens in the first embodiment of the present application;

[0033] FIG4 is a schematic structural diagram of a lens provided in a second embodiment of the present application;

[0034] FIG5 is a schematic structural diagram of a spacer ring in a second embodiment of the present application;

[0035] FIG6 is a schematic diagram of the installation of the lens and the spacer in the second embodiment of the present application;

[0036] FIG7 is a schematic structural diagram of a lens provided in a third embodiment of the present application;

[0037] FIG8 is a schematic structural diagram of a spacer ring in a third embodiment of the present application;

[0038] FIG9 is a schematic diagram of the installation of the lens and the spacer in the third embodiment of the present application

[0039] Illustrations: 1-lens, 11-mounting part, 101-upper surface, 102-side wall, 103-lower surface, 12-optically effective part, 13-supporting member, 14-lens through hole, 15-lens boss, 2-spacer, 21-spacer body, 201-upper end surface, 202-lower end surface, 203-outer wall surface, 204-inner wall surface, 22-light hole, 23-spacer boss, 24-spacer through hole, 3-lens barrel, 100-optical axis.

[0040] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0041] For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely descriptions of embodiments of the present application and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0042] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which 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, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting this application.

[0043] It should also be understood that the terms "comprises," "including," "having," "includes," and / or "comprising," when used in this specification, indicate the presence of the stated features, elements, and / or components, but do not preclude the presence or addition of one or more other features, elements, components, and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire list of features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present application, "may" is used to mean "one or more embodiments of the present application." And, the term "exemplary" is intended to refer to an example or illustration.

[0044] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and will not be interpreted in an idealized or overly formal sense unless expressly defined as such herein.

[0045] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0046] Please refer to Figure 1. The lens provided in the first embodiment of the present application includes an optically effective portion 12 and a mounting portion 11. The optically effective portion 12 is used for imaging of transmitted light. The mounting portion 11 extends around the optically effective portion 12. It can be understood that the optically effective portion 12 and the mounting portion 11 are integrally formed, the optically effective portion 12 is located in the middle position of the lens, and the mounting portion 11 is located on the outer side of the lens. The mounting portion 11 includes an upper surface 101, a lower surface 103 and a side wall 102, and the two ends of the side wall 102 are respectively connected to the upper surface 101 and the lower surface 103; the side wall 102 is arranged on the peripheral side of the lens for mounting and fixing the lens.

[0047] More specifically, the mounting portion 11 is provided with a plurality of lens through-holes 14, which extend through the upper surface 101 and the lower surface 103. The lens through-holes 14 are evenly spaced about the optical axis 100. When viewed along the optical axis 100, the shapes of the lens through-holes 14 include, but are not limited to, circular, diamond, triangular, or crescent shapes. By providing the lens through-holes 14 on the mounting portion 11 of the lens, the lens is subjected to radial compressive forces due to the different expansion and contraction of the lens, spacer, and lens barrel 3 under high or low temperature conditions. These radial compressive forces are relieved by the lens through-holes 14, and deformation of the lens caused by the compressive forces is concentrated near the lens through-holes 14, thereby preventing deformation of the optically effective portion 12 of the lens.

[0048] The mounting portion 11 is provided with a plurality of supporting members 13, which are evenly spaced about the optical axis 100 and arranged on the sidewall 102. The supporting members 13 are arranged along the radial direction of the lens and are located outside the lens through hole 14, corresponding to the lens through hole 14. That is, the supporting members 13 are arranged in a one-to-one correspondence with the lens through hole 14. The shapes of the supporting members 13 include, but are not limited to, arcuate, triangular, or wavy shapes. When the lens is installed in the lens barrel 3, the supporting members 13 abut against the inner wall of the lens barrel 3. In the radial direction, when the high-temperature expansion of the lens is greater than the expansion of the lens barrel 3, or the low-temperature contraction of the lens is less than the contraction of the lens barrel 3, radial extrusion deformation will occur. The present application sets a supporting member 13 corresponding to the lens through hole 14. Since the lens mounting portion 11 has a lens through hole 14 and only the supporting member 13 area is in contact with the inner wall of the lens barrel 3, the extrusion deformation is only concentrated in the supporting member 13 area. Since the lens through hole 14 is set at the position corresponding to the supporting member 13 in the radial direction of the lens, the extruded deformation stress will not be transmitted to the optically effective part 12 of the lens, thereby avoiding changes in the surface shape and curvature radius of the lens.

[0049] The mounting portion 11 is provided with a plurality of lens bosses 15, which are evenly spaced around the light effective portion bosses on the upper surface 101 and / or the lower surface 103. The lens bosses 15 are used for lens mounting, ensuring the flatness of the lens and preventing the lens from tilting after expansion.

[0050] Figure 2 is a schematic diagram of the force simulation of the lens in this embodiment, simulating the stress experienced by the lens during high-temperature expansion within the lens. As can be seen from the figure, stress is concentrated at the lens through-hole 14 and the support member 13, while stress in the optically active portion 12 is very low. This indicates that the structure of the lens through-hole 14 can relieve stress and prevent the transmission of stress to the optically active portion 12.

[0051] Figure 3 is a schematic diagram of the force-induced deformation simulation of the lens in this embodiment, simulating the deformation of the lens when subjected to stress due to high-temperature expansion within the lens. As can be seen from the figure, significant deformation occurs at the locations of lens through-hole 14 and support member 13, while deformation of the optically active portion 12 is very small, demonstrating that the configuration of lens through-hole 14 and support member 13 can prevent deformation of the optically active portion 12.

[0052] Please refer to FIG. 4 , the lens provided in the second embodiment of the present application includes a lens barrel 3 , a spacer ring 2 , and the lens 1 shown in the first embodiment. The inner wall of the lens barrel 3 abuts against the supporting member 13 of the lens 1 .

[0053] As shown in Figure 5, the spacer 2 includes a spacer body 21 and a light hole 22 formed around the spacer body 21. The spacer body 21 includes an upper end surface 201, a lower end surface 202, an inner wall surface 204, and an outer wall surface 203. The spacer body 21 is provided with a plurality of spacer through-holes 24, which extend through the inner wall surface 204 and the outer wall surface 203. The spacer body 21 is provided with a plurality of spacer bosses 23, which are disposed on the upper end surface 201 and / or the lower end surface 202. The spacer through-holes 24 and spacer bosses 23 are evenly distributed on the spacer 2, with the spacer bosses 23 located at positions corresponding to the spacer through-holes 24. By arranging a spacer boss 23 corresponding to the spacer through hole 24, high-precision installation of the spacer 2 and the lens 1 is facilitated, while also preventing the spacer 2 from squeezing the lens 1 in the direction of the optical axis 100. By causing deformation at the spacer through hole 24 of the spacer 2, squeezing of the lens is prevented, thereby protecting the optically effective part 12 of the lens from deformation.

[0054] As shown in FIG6 , during installation, the spacer boss 23 abuts against the lens boss 15 .

[0055] More specifically, the shape of the spacer ring through hole 24 includes but is not limited to a circle, a diamond, a triangle or a crescent, etc. The abutment location of the spacer ring boss 23 includes but is not limited to a plane, a point, an arc, etc.

[0056] In this embodiment, the lens 1 and its lens through-hole 14 and support member 13 protect the optically active portion 12 of the lens 1 from radial compression. The spacer boss 23 and spacer through-hole 24 mitigate compression of the lens 1 along the optical axis 100. This buffering in both radial and axial directions effectively prevents lens deformation, further protecting the optically active portion 12 and improving optical imaging quality and service life. The lens boss 15 and spacer boss 23 ensure precise installation of the lens 1 and spacer 2, providing a stable support relationship between the lens 1 and spacer 2.

[0057] Referring to FIG. 7 , the lens provided in the third embodiment of the present application is substantially identical to the lens of the second embodiment, differing in that the spacer boss 23 is offset from the spacer through-hole 24, i.e., along the optical axis 100 , the spacer boss 23 and the spacer through-hole 24 do not overlap. The spacer boss 23 is disposed within the lens through-hole 14 of the lens 1 . The spacer boss 23 is smaller than the lens through-hole 14. By extending the spacer boss 23 into the lens through-hole 14, the support member 13 and the surrounding structures of the lens through-hole 14 are effectively prevented from excessive deformation due to compression, exceeding the plastic deformation of the material itself and affecting the subsequent optical imaging quality and service life of the optical lens. Furthermore, by supporting the spacer boss 23 within the lens through-hole 14, the compressive force from the lens 1 can be transmitted to the spacer 2 , which is not affected by surface accuracy, thereby indirectly protecting the optically active portion 12 of the lens.

[0058] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A lens, characterized in that: include: An optically effective portion (12), the optically effective portion (12) being used for imaging of transmitted light; A mounting portion (11), the mounting portion (11) extending around the optically effective portion (12), the mounting portion (11) comprising an upper surface (101), a lower surface (103) and a side wall (102), and two ends of the side wall (102) are respectively connected to the upper surface (101) and the lower surface (103); A lens through hole (14), wherein the lens through hole (14) is arranged on the mounting portion (11), and the lens through hole (14) passes through the upper surface (101) and the lower surface (103); A supporting member (13), the supporting member (13) being arranged on the side wall (102) and being located outside the lens through hole (14) and corresponding to the lens through hole (14); A lens boss (15), wherein the lens boss (15) is arranged on the upper surface (101) and / or the lower surface (103)。 2. The lens according to claim 1, characterized in that The lens comprises a plurality of lens through holes (14) and a plurality of supporting members (13), and the plurality of lens through holes (14) are evenly distributed around the optically effective portion (12).

3. The lens according to claim 1, characterized in that: The lens through hole (14) has a shape including a circle, a diamond, a triangle or a crescent.

4. The lens according to claim 1, characterized in that: The shape of the supporting member (13) includes arc shape, triangle shape or wave shape.

5. The lens according to claim 1, characterized in that: The lens comprises a plurality of lens bosses (15), and the plurality of lens bosses (15) are evenly distributed around the light effective portion.

6. A lens, characterized in that: The lens comprises the lens according to any one of claims 1 to 5, and: A lens barrel (3), wherein the inner wall of the lens barrel (3) abuts against the supporting member (13); A spacer (2), the spacer (2) comprising a spacer body (21) and a light hole (22) formed around the spacer body (21), the spacer body (21) comprising an upper end surface (201), a lower end surface (202), an inner wall surface (204) and an outer wall surface (203), the spacer body (21) being provided with a plurality of spacer through holes (24), the spacer through holes (24) penetrating the inner wall surface (204) and the outer wall surface (203), the spacer body (21) being provided with a plurality of spacer bosses (23), the spacer bosses (23) being provided on the upper end surface (201) and / or the lower end surface (202); The spacer boss (23) abuts against the lens (1).

7. The lens according to claim 6, characterized in that: The spacer boss (23) abuts against the lens boss (15).

8. The lens according to claim 6, characterized in that: The spacer boss (23) is arranged in the lens through hole (14) of the lens (1).

9. The lens according to claim 6, characterized in that: The spacer ring through hole (24) has a shape including a circle, a diamond, a triangle or a crescent.

10. The lens according to claim 6, characterized in that: The spacer through holes (24) and the spacer bosses (23) are evenly distributed on the spacer body (21).

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