WO2022165642A1 - 镜片和具有其的拍摄终端 - Google Patents

镜片和具有其的拍摄终端 Download PDF

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Publication number
WO2022165642A1
WO2022165642A1 PCT/CN2021/074909 CN2021074909W WO2022165642A1 WO 2022165642 A1 WO2022165642 A1 WO 2022165642A1 CN 2021074909 W CN2021074909 W CN 2021074909W WO 2022165642 A1 WO2022165642 A1 WO 2022165642A1
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WIPO (PCT)
Prior art keywords
extinction
lens
side end
wall surface
stage
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PCT/CN2021/074909
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English (en)
French (fr)
Inventor
胡德忠
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欧菲光集团股份有限公司
江西晶超光学有限公司
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Priority to PCT/CN2021/074909 priority Critical patent/WO2022165642A1/zh
Publication of WO2022165642A1 publication Critical patent/WO2022165642A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/11—Anti-reflection coatings
    • G02B1/118—Anti-reflection coatings having sub-optical wavelength surface structures designed to provide an enhanced transmittance, e.g. moth-eye structures
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/02—Catoptric systems, e.g. image erecting and reversing system
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses

Definitions

  • the present application relates to the technical field of photographing terminals, and in particular, to a lens and a photographing terminal having the same.
  • an object of the present application is to provide a lens, which can reduce or eliminate stray light, is simple to install, and has good production stability.
  • a lens according to an embodiment of the present application includes: a lens body, wherein a plurality of extinction stage stages are arranged on the outer peripheral wall of the object side end of the lens body, the extinction stage stages are arranged around the object side end, and a plurality of the extinction stage stages are provided.
  • the stage stages are sequentially distributed along the axial direction of the object-side end, and the outer diameters of the plurality of extinction stage stages are configured to gradually increase from the object-side end to the image-side end of the lens body, and each of the Each of the extinction stage stages is provided with a plurality of extinction walls, and the outer diameters of the plurality of extinction walls increase sequentially from the object side end to the image side end of the lens.
  • the lens of the embodiment of the present application by setting the extinction stage at the object side end of the lens, when the light hits the object side end, the light is further diffused to achieve the purpose of reducing or eradicating stray light, and the lens has high production efficiency ,
  • the structure is stable, the extinction effect is better, and the scope of application of the lens is expanded.
  • the outer diameter of each of the extinction wall surfaces is configured to gradually increase from the object-side end to the image-side end of the lens.
  • At least two of the multiple extinction stage stages have the same projection length on the optical axis of the lens.
  • the multiple extinction wall surfaces of a single extinction stage stage all have projections on the optical axis, and there is a difference between the projection lengths of at least two of the extinction wall surfaces.
  • the multiple extinction wall surfaces of a single extinction stage stage all have projections on the optical axis, and there is a difference between the projection lengths of any two of the extinction wall surfaces.
  • the plurality of the extinction wall surfaces in each of the extinction stage stages include a first extinction wall surface, a second extinction wall surface, a third extinction wall surface and a fourth extinction wall surface, and the first extinction wall surface , the second extinction wall surface, the third extinction wall surface and the fourth extinction wall surface are arranged in sequence from the object side end to the image side end; wherein the first extinction wall surface and the third extinction wall surface
  • the sides of the cross-section parallel to and passing through the optical axis are linear, and the sides of the second and fourth extinction wall surfaces parallel to and passing through the optical axis are arc-shaped.
  • the lens of some embodiments of the present application there is a difference in the included angle between the first extinction wall surface and the axis of the object-side end and the included angle between the third extinction wall surface and the axis of the object-side end .
  • the included angle between the first extinction wall surface and the axis of the lens is ⁇ 1
  • the included angle between the third extinction wall surface and the axis of the lens is ⁇ 2, which satisfies : 1° ⁇ 1 ⁇ 20°, 25° ⁇ 2 ⁇ 90°.
  • the extension length of the first extinction wall surface along the object side end axis is L1
  • the extension length of the third extinction wall surface along the object side end axis is L2, which satisfies : 0.005mm ⁇ L1 ⁇ 0.1mm, 0.005mm ⁇ L2 ⁇ 0.08mm, where L1 is greater than L2.
  • the curvature radius of the second extinction wall surface is different from the curvature radius of the fourth extinction wall surface.
  • the radius of curvature of the second extinction wall surface is R1, which satisfies: 0.001mm ⁇ R1 ⁇ 0.08mm.
  • the number of the extinction stage stages is A1, which satisfies: 5 ⁇ A1 ⁇ 30.
  • the outer peripheral wall of the object side end is further provided with an extinction groove, and the outer peripheral wall of the light extinction groove at the object side end extends from the object side end to the image side end, and
  • the extinction groove and the extinction stage are arranged to intersect.
  • the extinction grooves there are a plurality of the extinction grooves, and the plurality of the extinction grooves are spaced apart and distributed in the circumferential direction of the object-side end.
  • the number of the extinction grooves is A2, which satisfies: 30 ⁇ A2 ⁇ 200.
  • the radial depth of the extinction groove is L3, which satisfies: 0.005mm ⁇ L3 ⁇ 0.03mm.
  • the extension length of the extinction groove along the axial direction of the object side end is D1
  • the thickness of the lens is D2, which satisfies: 1/3 ⁇ D1/D2 ⁇ 2/3.
  • the object-side end of the lens body is configured as a truncated cone.
  • the present application also proposes a photographing terminal.
  • the photographing terminal according to the embodiment of the present application is provided with the lens described in any one of the foregoing embodiments.
  • the photographing terminal and the above-mentioned lens have the same advantages over the prior art, which will not be repeated here.
  • FIG. 1 is a top view of a lens of some embodiments of the present application.
  • FIG. 2 is a front view of a lens of some embodiments of the present application.
  • Fig. 3 is the enlarged view of A place in Fig. 2;
  • FIG. 4 is a cross-sectional view of a lens of some embodiments of the present application.
  • Fig. 5 is the enlarged view of B place in Fig. 4;
  • FIG. 6 is a top view of lenses according to other embodiments of the present application.
  • Fig. 7 is the enlarged view at C place in Fig. 6;
  • FIG. 8 is a front view of lenses of other embodiments of the present application.
  • Lens body 1 object side 2, image side 3, extinction stage 4, extinction wall 5, first extinction wall 51, second extinction wall 52, third extinction wall 53, fourth extinction wall 54, extinction groove 6 .
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection or indirect connection through an intermediate medium, and may be internal communication between two elements.
  • installed may be a fixed connection or a detachable connection Connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection or indirect connection through an intermediate medium, and may be internal communication between two elements.
  • the following describes a lens 100 according to an embodiment of the present application with reference to FIGS. 1-8 .
  • a lens 100 includes a lens body 1 and an extinction stage stage 4 .
  • One end of the lens body 1 is the object-side end 2, that is, the end of the lens body 1 that is closer to external things, so that light can enter the lens 100 through the object-side end 2, so that the lens 100 can better image.
  • the other end of the lens body 1 is the image side end 3, and the image side end 3 is suitable for being installed on the shooting terminal.
  • the lens 100 of the present application is connected to the shooting terminal through the image side end 3, so that the image side end
  • the structure of 3 plays a good role in fixing the lens 100 of the present application, and enhances the overall structural stability of the lens 100 .
  • the object-side end 2 and the image-side end 3 are connected along the axial direction of the lens 100 , that is, the axis of the object-side end 2 is parallel or coincident with the axis of the image-side end 3 , as shown in FIG. 1 , the axis of the object-side end 2 Coincides with the axial direction of the image side end 3 .
  • the radial dimension of the object side end 2 is set to gradually increase from the end far from the image side end 3 to the end close to the image side end 3 , which is convenient for the object side end 2 and the image side.
  • the installation between the ends 3 reduces the overall size of the object-side end 2 and reduces the production cost. In this way, after the image-side end 3 is installed on the photographing terminal, the object-side end 2 can be extended outward for photographing external things.
  • the outer peripheral wall of the object side end 2 is provided with a plurality of extinction stage stages 4, and the extinction stage stage 4 can be configured as an annular step shape, so that when the light hits the outer peripheral wall of the object side end 2, the light will not enter normally.
  • the extinction stage 4 is arranged around the object side end 2, so that the stray light can be removed through the extinction stage stage 4 at multiple positions in the circumferential direction of the object side end 2
  • the function of the multiple extinction stage stages 4 is sequentially distributed along the axial direction of the object side end 2, and the outer diameter of the multiple extinction stage stages 4 is configured to gradually increase from the object side end 2 to the image side end 3 of the lens body 1,
  • each extinction stage stage 4 is provided with a plurality of extinction walls 5, that is to say, multiple extinction walls 5 are conducive to increasing the surface area of the annular stage stage , to improve the elimination efficiency of stray light at the stage of the annular stage, and the outer diameters of the plurality of extinction walls 5 increase sequentially from the object side end 2 to the image side end 3 of the lens 100, so as to be able to
  • the lens 100 of the embodiment of the present application by setting the extinction stage 4 at the object side end 2 of the lens 100, when the light hits the object side end 2, the light is further dispersed, so as to reduce or eliminate the stray light, and this
  • the lens 100 has high production efficiency, stable structure and better extinction effect, thus expanding the scope of application of the lens 100.
  • each extinction wall 5 is configured to gradually increase from the object side end 2 to the image side end 3 of the lens 100 , that is, the diameter of each extinction wall 5 is The outer diameters are configured to gradually increase from the object side end 2 to the image side end 3 in the direction of the optical axis of the lens 100, so that each extinction wall surface 5 can receive light from various incident angles, and Better elimination of stray light for light.
  • the projection lengths of at least two extinction table stages 4 on the optical axis of the lens 100 are the same among the multiple extinction stage stages 4 , that is, the multiple extinction stage stages 4 can be
  • the projection lengths of the two extinction stage stages 4 on the optical axis of the lens 100 are set to be the same, and the projection lengths of three or more extinction stage stages 4 on the optical axis of the lens 100 can also be set to be the same,
  • the projection lengths of multiple extinction stage stages 4 on the optical axis of the lens 100 can be set to be the same, so that the axial dimension of the extinction stage stages 4 can be flexibly designed to reduce the design difficulty of the lens 100.
  • the setting method can make at least two extinction stage stages 4 have similar extinction effects, which is beneficial for the extinction stage stage 4 to better scatter light, thereby reducing or removing stray light, so that the lens 100 can better image.
  • the multiple extinction walls 5 of a single extinction stage 4 all have projections on the optical axis, and the projection lengths of at least two extinction walls 5 are different, that is, each Among the at least two extinction wall surfaces 5 of the multiple extinction wall surfaces 5 in the extinction stage stage 4, there is a difference between the projection length of at least one extinction wall surface 5 on the optical axis and the projection length of the other extinction wall surface 5 on the optical axis, which is understandable
  • the projection lengths of two extinction walls 5 on the optical axis of the plurality of extinction walls 5 can be set to be different, and the projection lengths of three or more of the extinction walls 5 on the optical axis can also be set as Different, or the projection lengths of the plurality of extinction walls 5 on the optical axis can be set to be different, so that the axial dimension of the extinction walls 5 can be flexibly designed, which is beneficial to reduce the construction difficulty of the extinction stage stage 4, and
  • the multiple extinction walls 5 of a single extinction stage 4 all have projections on the optical axis, and there is a difference between the projection lengths of any two extinction walls 5, that is, each In any two extinction wall surfaces 5 of the multiple extinction wall surfaces 5 in the extinction stage stage 4, there is a difference between the projection length of any one extinction wall surface 5 on the optical axis and the projection length of the other extinction wall surface 5 on the optical axis.
  • the projection length of any one of the plurality of extinction walls 5 on the optical axis is different from that of the other extinction walls 5, so that each extinction wall 5 has a different extinction effect than the other extinction walls 5. , which is beneficial to enrich the extinction performance of stage 4 of the extinction stage.
  • the plurality of extinction walls 5 of each extinction stage 4 includes four extinction walls 5 , which are: a first extinction wall 51 , a second extinction wall 52 , and a third extinction wall 53 and the fourth extinction wall surface 54, by setting four extinction wall surfaces 5 on the extinction stage stage 4, the surface area of the extinction stage stage 4 is increased, so that the extinction stage stage 4 can receive more light, thereby improving the extinction stage stage. 4.
  • the efficiency of eliminating stray light the first extinction wall surface 51, the second extinction wall surface 52, the third extinction wall surface 53 and the fourth extinction wall surface 54 are sequentially arranged from the object side end 2 to the image side end 3; among them, as shown in Figure 3
  • the sides of the first extinction wall surface 51 and the third extinction wall surface 53 parallel to and passing through the optical axis are linear
  • the second extinction wall surface 52 and the fourth extinction wall surface 54 are parallel to and pass through the optical axis.
  • the sides of the s are arc-shaped, that is to say, as shown in FIG. 3 , in each of the four extinction walls 5 of the other extinction stage 4, the sides of the cross-section are the first extinction walls 51 constructed as straight lines.
  • the second extinction wall surface 52 which is configured as an arc type through the side of the cross section, forms a circular arc transition.
  • the wall surface 53 forms a circular arc transition through the fourth extinction wall surface 54 of another extinction stage stage 4, thereby forming a staggered arrangement through the linear structure and the arc-shaped structure, which is beneficial to the extinction stage stage 4 to receive light with different incident angles, thereby starting to reduce or eradicate stray light.
  • the angle between the first extinction wall 51 and the lens 100 is ⁇ 1
  • the extension length of the first extinction wall surface 51 along the axial direction of the object side end 2 is L1
  • the extension length of the third extinction wall surface 53 along the axial direction of the object side end 2 is L2, satisfying: 0.005mm ⁇ L1 ⁇ 0.1 mm, 0.005mm ⁇ L2 ⁇ 0.08mm, where L1 is greater than L2.
  • the extension length of the first extinction wall surface 51 along the axial direction of the object side end 2 and the extension length of the third extinction wall surface 53 along the axial direction of the object side end 2 are selected from the above-mentioned ranges, the first extinction wall surface 51 and the third extinction wall surface 51 can be guaranteed.
  • the three extinction walls 53 have the best effect of removing stray light, so that the lens 100 can image better.
  • the radius of curvature of the second extinction wall surface 52 is different from that of the fourth extinction wall surface 54 , and the radius of curvature of the second extinction wall surface 52 is R1 , which satisfies: 0.001mm ⁇ R1 ⁇ 0.08 mm.
  • the outer peripheral wall of the object side end 2 is further provided with an extinction groove 6 , and the outer peripheral wall of the extinction groove 6 at the object side end 2 extends from the object side end 2 to the image side
  • the end 3 is extended, and the extinction groove 6 is arranged across the stage 4 of the extinction table. That is to say, the extinction groove 6 runs through a plurality of extinction stage stages 4 along the axis direction of the object side end 2, which increases the area of the light-receiving light of the extinction groove 6, reduces the stray light intensity, thus avoids light gathering, and plays a better role to remove stray light.
  • there are multiple extinction grooves 6 that is, a corresponding number of extinction grooves 6 can be set according to specific usage requirements, and the multiple extinction grooves 6 are on the object side
  • the ends 2 are spaced apart in the circumferential direction, which improves the utilization rate of the installation space of the outer wall of the object-side end 2 and enhances the economical applicability of the lens 100 .
  • the number of extinction grooves 6 is A2, which satisfies: 30 ⁇ A2 ⁇ 200.
  • the radial depth of the extinction groove 6 is L3, which satisfies: 0.005mm ⁇ L3 ⁇ 0.03mm.
  • the depth of the extinction groove 6 is selected from the above range, it can make the light hit the extinction groove 6 and be better absorbed by the extinction groove 6. Scattering and elimination, so that the extinction groove 6 can better remove stray light, achieve a better extinction effect, and make the lens 100 image better.
  • the extension length of the extinction groove 6 along the axial direction of the object side end 2 is D1
  • the thickness of the lens 100 is D2, which satisfies: 1/3 ⁇ D1/D2 ⁇ 2/3,
  • the object-side end 2 of the lens body 1 can be configured as a truncated cone, which facilitates the object-side end 2 to receive more light, and facilitates the light entering the lens 100 through the object-side end 2, so that the lens 100 can better imaging.
  • the present application also proposes a photographing terminal, which is provided with the lens 100 of any of the above embodiments. According to the photographing terminal of the embodiment of the present application, stray light can be better removed, and the imaging effect is better, and the practicability is stronger.

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  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

一种镜片(100)和具有其的拍摄终端，所述镜片(100)包括：镜片本体，其中镜片本体的物侧端(2)的外周壁设有多个消光台阶段(4)，消光台阶段(4)环绕物侧端(2)设置，多个消光台阶段(4)沿物侧端的轴向依次分布，且多个消光台阶段(4)的外径构造为从物侧端(2)到镜片本体的像侧端(3)逐渐增大，且每个消光台阶段(4)均设有多个消光壁面(5)，多个消光壁面(5)的外径自镜片(100)的物侧端(2)至像侧端(3)依次增大。通过在镜片(100)的物侧端(2)设置消光台阶段(4)，使光线打到物侧端(2)时，光线进一步散开，达到减弱或根除杂光的目的。

Description

镜片和具有其的拍摄终端 技术领域
本申请涉及拍摄终端技术领域，尤其是涉及一种镜片和具有其的拍摄终端。
背景技术
近年来，全面屏已经成为手机的基本配置，摄像头方案也在不断地进行创新和突破。当前，小头部摄像头，为了达到小头的目的，机构直径几乎和非球面有效成像区域大小相等，导致光线很容易打到侧壁产生严重的杂光。现有技术中，多通过镀膜、喷砂、放电、激光等方式进行处理表面以用于消除杂光，但改善杂光的程度都有限，且涂墨处理表面的方式效率低，成本高，存在改进的空间。
申请内容
本申请旨在至少解决现有技术中存在的技术问题之一。为此，本申请的一个目的在于提出一种镜片，能够减弱或根除杂光，且安装简单，具有良好的生产稳定性。
根据本申请实施例的镜片，包括：镜片本体，其中所述镜片本体的物侧端的外周壁设有多个消光台阶段，所述消光台阶段环绕所述物侧端设置，多个所述消光台阶段沿所述物侧端的轴向依次分布，且多个所述消光台阶段的外径构造为从所述物侧端到所述镜片本体的像侧端逐渐增大，且每个所述消光台阶段均设有多个消光壁面，多个所述消光壁面的外径自所述镜片的所述物侧端至所述像侧端依次增大。
根据本申请实施例的镜片，通过在镜片的物侧端设置消光台阶段，使光线打到物侧端时，光线进一步散开，达到减弱或根除杂光的目的，且这种镜片生产效率高，结构稳定，消光效果更好，扩大了镜片的适用范围。
根据本申请实施例的镜片，每个所述消光壁面的外径均构造为自所述镜片的所述物侧端至所述像侧端逐渐增大。
根据本申请一些实施例的镜片，多个所述消光台阶段中至少两个所述消光台阶段在所述镜片的光轴上的投影长度相同。
根据本申请一些实施例的镜片，单个所述消光台阶段的多个所述消光壁面在光轴上均具有投影，至少两个所述消光壁面的投影长度存在差值。
根据本申请一些实施例的镜片，单个所述消光台阶段的多个所述消光壁面在光轴上均具有投影，任意两个所述消光壁面的投影长度存在差值。
根据本申请一些实施例的镜片，每个所述消光台阶段的多个所述消光壁面包括第一消 光壁面、第二消光壁面、第三消光壁面和第四消光壁面，所述第一消光壁面、所述第二消光壁面、所述第三消光壁面和所述第四消光壁面从所述物侧端到所述像侧端依次布置；其中所述第一消光壁面和所述第三消光壁面的平行于且经过光轴的截面的侧边为直线型，所述第二消光壁面和所述第四消光壁面的平行于且经过光轴的截面的侧边为圆弧型。
根据本申请一些实施例的镜片，所述第一消光壁面与所述物侧端的轴线之间的夹角、所述第三消光壁面与所述物侧端的轴线之间的夹角大小存在差值。
根据本申请一些实施例的镜片，所述第一消光壁面与所述镜片的轴线之间的夹角为α1，所述第三消光壁面与所述镜片的轴线之间的夹角为α2，满足：1°≤α1≤20°，25°≤α2＜90°。
根据本申请一些实施例的镜片，所述第一消光壁面沿所述物侧端轴向的延伸长度为L1，所述第三消光壁面沿所述物侧端轴向的延伸长度为L2，满足：0.005mm≤L1≤0.1mm，0.005mm≤L2≤0.08mm，其中，L1大于L2。
根据本申请一些实施例的镜片，所述第二消光壁面的曲率半径与所述第四消光壁面的曲率半径不同。
根据本申请一些实施例的镜片，所述第二消光壁面的曲率半径为R1，满足：0.001mm≤R1≤0.08mm。
根据本申请一些实施例的镜片，所述消光台阶段的数量为A1，满足：5≤A1≤30。
根据本申请另一些实施例的镜片，所述物侧端的外周壁还设有消光槽，所述消光槽在所述物侧端的外周壁从所述物侧端向所述像侧端延伸，且所述消光槽与所述消光台阶段交叉设置。
根据本申请另一些实施例的镜片，所述消光槽为多个，多个所述消光槽在所述物侧端的周向上间隔开分布。
根据本申请另一些实施例的镜片，所述消光槽的数量为A2，满足：30≤A2≤200。
根据本申请另一些实施例的镜片，所述消光槽的径向深度为L3，满足：0.005mm≤L3≤0.03mm。
根据本申请另一些实施例的镜片，所述消光槽沿所述物侧端轴向的延伸长度为D1，所述镜片的厚度为D2，满足：1/3≤D1/D2≤2/3。
根据本申请另一些实施例的镜片，所述镜片本体的物侧端构造为圆台状。
本申请还提出一种拍摄终端。
根据本申请实施例的拍摄终端，设置有上述任一项实施例所述的镜片。
所述拍摄终端与上述的镜片相对于现有技术所具有的优势相同，在此不再赘述。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明 显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是本申请一些实施例的镜片的俯视图；
图2是本申请一些实施例的镜片的主视图；
图3是图2中A处的放大图；
图4是本申请一些实施例的镜片的剖面图；
图5是图4中B处的放大图；
图6是本申请另一些实施例的镜片的俯视图；
图7是图6中C处的放大图；
图8是本申请另一些实施例的镜片的主视图。
附图标记：
镜片100，
镜片本体1，物侧端2，像侧端3，消光台阶段4，消光壁面5，第一消光壁面51，第二消光壁面52，第三消光壁面53，第四消光壁面54，消光槽6。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连， 可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
下面参考图1-图8描述根据本申请实施例的镜片100。
如图1和图2所示，根据本申请实施例的镜片100，包括：镜片本体1和消光台阶段4。
镜片本体1的一端为物侧端2，即镜片本体1距离外部事物较近的一端，便于光线通过物侧端2进入镜片100，使得镜片100更好地成像。
需要说明的是，镜片本体1的另一端为像侧端3，且像侧端3适于安装于拍摄终端，本申请的镜片100通过像侧端3与拍摄终端相接，从而，像侧端3的结构对本申请的镜片100起到良好的固定作用，增强了镜片100整体的结构稳定性。物侧端2与像侧端3沿镜片100的轴向相连，也就是说，物侧端2的轴线与像侧端3的轴线平行或重合，如图1所示，物侧端2的轴线与像侧端3的轴向重合。且如图2所示，在本申请中，物侧端2的径向尺寸设置为从远离像侧端3的一端到靠近像侧端3的一端逐渐增大，便于物侧端2与像侧端3之间的安装，减小物侧端2的整体尺寸，降低生产成本。这样，在像侧端3安装于拍摄终端后，物侧端2能够向外伸出以用于对外部事物进行拍摄。
其中，物侧端2的外周壁设有多个消光台阶段4，消光台阶段4可构造为环形台阶状，便于在光线打到物侧端2的外周壁时，不会对光线的正常进入产生影响，且能起到减弱或根除杂光的作用，消光台阶段4环绕物侧端2设置，以使物侧端2周向上的多个位置处均能够通过消光台阶段4实现去除杂光的作用，多个消光台阶段4沿物侧端2的轴向依次分布，且多个消光台阶段4的外径构造为从物侧端2到镜片本体1的像侧端3逐渐增大，有利于环形台阶段对不同入射角度的光线进行消除杂光，且每个消光台阶段4均设有多个消光壁面5，也就是说，多个消光壁面5有利于增大环形台阶段的表面积，提高环形台阶段对杂光的消除效率，且多个消光壁面5的外径自镜片100的物侧端2至像侧端3依次增大，便于能够接收到来自多种不同入射角度的光线，并对光线进行更好地消除杂光。
可以理解的是，在拍摄终端进行拍摄时，光线从物侧端2进入镜片100后，若光线的入射角度与镜片100的轴线的夹角过大时无法直接通过镜片100的像侧端3且易通过物侧端2的周壁进行反射，而本申请中通过在物侧端2的外周壁设置消光台阶段4，能够有效地消除杂光，从而提升拍摄效果。
根据本申请实施例的镜片100，通过在镜片100的物侧端2设置消光台阶段4，使光线打到物侧端2时，光线进一步散开，达到减弱或根除杂光的目的，且这种镜片100生产效率高，结构稳定，消光效果更好，扩大了镜片100的适用范围。
在一些实施例中，如图3所示，每个消光壁面5的外径均构造为自镜片100的物侧端2至像侧端3逐渐增大，也就是说，每个消光壁面5的外径均构造为在镜片100的光轴的方 向上，从物侧端2至像侧端3逐渐增大，从而利于每个消光壁面5均能够接收到来自多种不同入射角度的光线，并更好地对光线进行杂光的消除。
在一些实施例中，如图2所示，多个消光台阶段4中至少两个消光台阶段4在镜片100的光轴上的投影长度相同，也就是说，可将多个消光台阶段4中的两个消光台阶段4在镜片100的光轴上的投影长度设置为相同，也可将其中三个甚至更多个消光台阶段4在镜片100的光轴上的投影长度设置为相同，或者可将多个消光台阶段4在镜片100的光轴上的投影长度均设置为相同，由此，消光台阶段4的轴向尺寸可灵活地设计，以降低镜片100的设计难度，通过这样的设置方式，可使得至少两个消光台阶段4具有相近的消光效果，利于消光台阶段4能够对光线进行更好地散射，从而减弱或去除杂光，使得镜片100更好地成像。
在一些实施例中，如图3所示，单个消光台阶段4的多个消光壁面5在光轴上均具有投影，至少两个消光壁面5的投影长度存在差值，也就是说，每个消光台阶段4的多个消光壁面5的至少两个消光壁面5中，至少一个消光壁面5在光轴上的投影长度与另一个消光壁面5在光轴上的投影长度存在差值，可以理解的是，可将多个消光壁面5中的两个消光壁面5在光轴上的投影长度设置为不同，也可将其中三个甚至更多个消光壁面5在光轴上的投影长度设置为不同，或者可将多个消光壁面5在光轴上的投影长度均设置为不相同，由此，消光壁面5的轴向尺寸可灵活地设计，利于降低消光台阶段4的构造难度，且其中至少两个消光壁面5能够产生不同的消光效果，便于消光台阶段4能够对不同入射角度的光线进行减弱或根除杂光。
在另一些实施例中，如图3所示，单个消光台阶段4的多个消光壁面5在光轴上均具有投影，任意两个消光壁面5的投影长度存在差值，也就是说，每个消光台阶段4的多个消光壁面5的任意两个消光壁面5中，任意一个消光壁面5在光轴上的投影长度与另一个消光壁面5在光轴上的投影长度存在差值。可以理解的是，多个消光壁面5中的任意一个消光壁面5在光轴上的投影长度均与其他消光壁面5不同，以使每个消光壁面5均具有不同于其他消光壁面5的消光效果，利于丰富消光台阶段4的消光性能。
在一些实施例中，如图3所示，每个消光台阶段4的多个消光壁面5包括4个消光壁面5，分别为：第一消光壁面51、第二消光壁面52、第三消光壁面53和第四消光壁面54，通过在消光台阶段4上设置4个消光壁面5，增大了消光台阶段4的表面积，使得消光台阶段4能够接收到更多的光线，从而提高消光台阶段4对杂光进行消除的效率，第一消光壁面51、第二消光壁面52、第三消光壁面53和第四消光壁面54从物侧端2到像侧端3依次布置；其中，如图3所示，第一消光壁面51和第三消光壁面53的平行于且经过光轴的截面的侧边为直线型，第二消光壁面52和第四消光壁面54的平行于且经过光轴的截面的 侧边为圆弧型，也就是说，如图3所示，在每个另一个消光台阶段4的4个消光壁面5中，截面的侧边为构造为直线型的第一消光壁面51和第三消光壁面53中间通过截面的侧边构造为圆弧型的第二消光壁面52形成圆弧过渡，同样的，第一消光壁面51与相邻的另一个消光台阶段4的第三消光壁面53通过另一个消光台阶段4的第四消光壁面54形成圆弧过渡，由此，通过直线型结构以及弧形结构形成交错设置，有利于消光台阶段4接收不同入射角度的光线，从而起到减弱或根除杂光的作用。
如图2、图4和图5所示，第一消光壁面51与物侧端2的轴线之间的夹角、第三消光壁面53与物侧端2的轴线之间的夹角大小存在差值。也就是说，第一消光壁面51和第三消光壁面53接收到的光线的入射角度不同，第一消光壁面51和第三消光壁面53可同时对不同入射角度的光线进行消除杂光，从而减弱或去除杂光，使得镜片100更好地成像。
如图2所示，第一消光壁面51与镜片100之间的夹角为α1，第三消光壁面53与镜片100之间的夹角为α2，满足：1°≤α1≤20°，25°≤α2＜90°，如α1＝5°，α2＝30°，或者α1＝10°，α2＝50°，再或者α1＝15°，α2＝70°。通过将第一消光壁面51、第三消光壁面53与物侧端2的轴线之间的夹角设计在上述范围内，可以有效地防止光线的散射，从而更好都去除杂光。
如图3所示，第一消光壁面51沿物侧端2轴向的延伸长度为L1，第三消光壁面53沿物侧端2轴向的延伸长度为L2，满足：0.005mm≤L1≤0.1mm，0.005mm≤L2≤0.08mm，其中，L1大于L2。如L1＝0.009mm，L2＝0.007mm，或者L1＝0.02mm，L2＝0.01mm，再或者L1＝0.08mm，L2＝0.07mm。当第一消光壁面51沿物侧端2轴向的延伸长度和第三消光壁面53沿物侧端2轴向的延伸长度从上述的范围内进行选取时，能够保证第一消光壁面51和第三消光壁面53具有最好的去除杂光的效果，使得镜片100更好地成像。
如图2、图3和图5所示，第二消光壁面52的曲率半径与第四消光壁面54的曲率半径不同，第二消光壁面52的曲率半径为R1，满足：0.001mm≤R1≤0.08mm。如R1＝0.005mm，或者R1＝0.008mm，再或者R1＝0.04mm。本申请中的第二消光壁面52的曲率半径设置在上述设定范围时，利于第二消光壁面52进一步地达到减弱或去除杂光的效果。
消光台阶段4的数量为A1，满足：5≤A1≤30。如A1＝8，或者A1＝18，再或者A1＝28。也就是说，在本申请中，消光台阶段4的数量可根据实际的需求进行灵活设置，通过将消光台阶段4的数量设计在上述范围内，可以有效地防止光线的散射，从而更好都去除杂光。
在另一些实施例中，如图6和图8所示，物侧端2的外周壁还设有消光槽6，且消光槽6在物侧端2的外周壁从物侧端2向像侧端3延伸，消光槽6与消光台阶段4交叉设置。也就是说，消光槽6沿着物侧端2的轴线方向贯穿多个消光台阶段4，增加了消光槽6的接收光线的面积，降低了杂光强度，从而避免了光线聚集，起到更好地去除杂光的作用。
在另一些实施例中，如图6和图8所示，消光槽6为多个，也就是说，可根据具体的使用需求设置相应数量的消光槽6，且多个消光槽6在物侧端2的周向上间隔开分布，提高了物侧端2的外壁的安装空间的利用率，增强了镜片100的经济适用性。
在另一些实施例中，如图6和图8所示，消光槽6的数量为A2，满足：30≤A2≤200。如A2＝80，或者A2＝100，在或者A2＝180，通过将消光槽6的数量设计在上述范围内，可以有效地防止光线的聚集，从而更好都去除杂光。
在另一些实施例中，如图6和图7所示，消光槽6的径向深度为L3，满足：0.005mm≤L3≤0.03mm。如L3＝0.008mm，或者L3＝0.01mm，在或者L3＝0.02mm，当消光槽6的深度从上述的范围内进行选取时，能够使得光线打到消光槽6后，更好地被消光槽6散射、消除，从而消光槽6更好地去除杂光，达到更好的消光效果，使得镜片100更好地成像。
在另一些实施例中，如图8所示，消光槽6沿物侧端2轴向的延伸长度为D1，镜片100的厚度为D2，满足：1/3≤D1/D2≤2/3，如D1/D2＝1/3，或者D1/D2＝1/2，在或者D1/D2＝2/3，也就是说，消光槽6沿物侧端2轴向的延伸长度取决于镜片100的厚度，将消光槽6沿物侧端2轴向的延伸长度和镜片100的厚度的比例设置在上述范围时，能在物侧端2接收到光线对光线去除杂光时，能保证镜片100具有最好的消光效果，同时控制消光槽6的深度，使得消光槽6更好地脱模和成型，便于加工和安装。
在另一些实施例中，镜片本体1的物侧端2可构造为圆台状，便于物侧端2接收更多的光线，且利于光线通过物侧端2进入镜片100，使得镜片100更好地成像。
本申请还提出一种拍摄终端，设置有上述任一种实施例的镜片100，根据本申请实施例的拍摄终端，能够更好地去除杂光，具有更好的成像效果，实用性更强。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本申请的实施例，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。

Claims (19)

  1. 一种镜片(100)，其特征在于，包括：镜片本体(1)，其中
    所述镜片本体(1)的物侧端(2)的外周壁设有多个消光台阶段(4)，所述消光台阶段(4)环绕所述物侧端(2)设置，多个所述消光台阶段(4)沿所述物侧端(2)的轴向依次分布，且多个所述消光台阶段(4)的外径构造为从所述物侧端(2)到所述镜片本体(1)的像侧端(3)逐渐增大，且每个所述消光台阶段(4)均设有多个消光壁面(5)，多个所述消光壁面(5)的外径自所述镜片(100)的所述物侧端(2)至所述像侧端(3)依次增大。
  2. 根据权利要求1所述的镜片(100)，其特征在于，每个所述消光壁面(5)的外径均构造为自所述镜片(100)的所述物侧端(2)至所述像侧端(3)逐渐增大。
  3. 根据权利要求1或2所述的镜片(100)，其特征在于，多个所述消光台阶段(4)中至少两个所述消光台阶段(4)在所述镜片(100)的光轴上的投影长度相同。
  4. 根据权利要求1-3中任一项所述的镜片(100)，其特征在于，单个所述消光台阶段(4)的多个所述消光壁面(5)在光轴上均具有投影，至少两个所述消光壁面(5)的投影长度存在差值。
  5. 根据权利要求1-4中任一项所述的镜片(100)，其特征在于，单个所述消光台阶段(4)的多个所述消光壁面(5)在光轴上均具有投影，任意两个所述消光壁面(5)的投影长度存在差值。
  6. 根据权利要求1-5中任一项所述的镜片(100)，其特征在于，每个所述消光台阶段(4)的多个所述消光壁面(5)包括第一消光壁面(51)、第二消光壁面(52)、第三消光壁面(53)和第四消光壁面(54)，所述第一消光壁面(51)、所述第二消光壁面(52)、所述第三消光壁面(53)和所述第四消光壁面(54)从所述物侧端(2)到所述像侧端(3)依次布置；其中
    所述第一消光壁面(51)和所述第三消光壁面(53)的平行于且经过光轴的截面的侧边为直线型，所述第二消光壁面(52)和所述第四消光壁面(54)的平行于且经过光轴的截面的侧边为圆弧型。
  7. 根据权利要求6所述的镜片(100)，其特征在于，所述第一消光壁面(51)与所述物侧端(2)的轴线之间的夹角、所述第三消光壁面(53)与所述物侧端(2)的轴线之间的夹角大小存在差值。
  8. 根据权利要求7所述的镜片(100)，其特征在于，所述第一消光壁面(51)与所述镜片(100)的轴线之间的夹角为α1，所述第三消光壁面(53)与所述镜片(100)的轴线之间的夹角为α2，满足：1°≤α1≤20°，25°≤α2＜90°。
  9. 根据权利要求6-8中任一项所述的镜片(100)，其特征在于，所述第一消光壁面(51) 沿所述物侧端(2)轴向的延伸长度为L1，所述第三消光壁面(53)沿所述物侧端(2)轴向的延伸长度为L2，满足：0.005mm≤L1≤0.1mm，0.005mm≤L2≤0.08mm，其中，L1大于L2。
  10. 根据权利要求6-9中任一项所述的镜片(100)，其特征在于，所述第二消光壁面(52)的曲率半径与所述第四消光壁面(54)的曲率半径不同。
  11. 根据权利要求10所述的镜片(100)，其特征在于，所述第二消光壁面(52)的曲率半径为R1，满足：0.001mm≤R1≤0.08mm。
  12. 根据权利要求1-11中任一项所述的镜片(100)，其特征在于，所述消光台阶段(4)的数量为A1，满足：5≤A1≤30。
  13. 根据权利要求1-12中任一项所述的镜片(100)，其特征在于，所述物侧端(2)的外周壁还设有消光槽(6)，所述消光槽(6)在所述物侧端(2)的外周壁从所述物侧端(2)向所述像侧端(3)延伸，且所述消光槽(6)与所述消光台阶段(4)交叉设置。
  14. 根据权利要求13所述的镜片(100)，其特征在于，所述消光槽(6)为多个，多个所述消光槽(6)在所述物侧端(2)的周向上间隔开分布。
  15. 根据权利要求13或14所述的镜片(100)，其特征在于，所述消光槽(6)的数量为A2，满足：30≤A2≤200。
  16. 根据权利要求13-15中任一项所述的镜片(100)，其特征在于，所述消光槽(6)的径向深度为L3，满足：0.005mm≤L3≤0.03mm。
  17. 根据权利要求13-16中任一项所述的镜片(100)，其特征在于，所述消光槽(6)沿所述物侧端(2)轴向的延伸长度为D1，所述镜片(100)的厚度为D2，满足：1/3≤D1/D2≤2/3。
  18. 根据权利要求1-12中任一项所述的镜片(100)，其特征在于，所述镜片本体(1)的物侧端(2)构造为圆台状。
  19. 一种拍摄终端，其特征在于，设置有权利要求1-18中任一项所述的镜片(100)。
PCT/CN2021/074909 2021-02-02 2021-02-02 镜片和具有其的拍摄终端 WO2022165642A1 (zh)

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007148307A (ja) * 2005-11-28 2007-06-14 Kiyotake Koyama カメラレンズ用のジャバラ式フード
CN206523682U (zh) * 2017-01-20 2017-09-26 瑞声科技(新加坡)有限公司 镜头模组
CN108181683A (zh) * 2018-03-19 2018-06-19 江苏斯德雷特通光光纤有限公司 一种低串扰大模场面积多芯光纤及其制备方法
CN109283613A (zh) * 2018-11-26 2019-01-29 北京交通大学 一种低芯间串扰多芯光纤
CN110426760A (zh) * 2019-08-28 2019-11-08 浙江舜宇光学有限公司 一种塑胶镜片及包含该塑胶镜片的镜头
CN209823808U (zh) * 2019-07-15 2019-12-20 辽宁中蓝电子科技有限公司 一种全面屏小头手机摄像的杂光处理结构
CN210427911U (zh) * 2019-07-09 2020-04-28 信泰光学(深圳)有限公司 镜头装置
US20200233173A1 (en) * 2019-01-23 2020-07-23 Hon Hai Precision Industry Co., Ltd. Lens assembly and electronic device having same
CN211149028U (zh) * 2019-12-16 2020-07-31 浙江舜宇光学有限公司 光学成像镜头
CN111897081A (zh) * 2019-05-06 2020-11-06 南昌欧菲精密光学制品有限公司 镜筒、镜头结构及其组装方法以及摄像模组

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007148307A (ja) * 2005-11-28 2007-06-14 Kiyotake Koyama カメラレンズ用のジャバラ式フード
CN206523682U (zh) * 2017-01-20 2017-09-26 瑞声科技(新加坡)有限公司 镜头模组
CN108181683A (zh) * 2018-03-19 2018-06-19 江苏斯德雷特通光光纤有限公司 一种低串扰大模场面积多芯光纤及其制备方法
CN109283613A (zh) * 2018-11-26 2019-01-29 北京交通大学 一种低芯间串扰多芯光纤
US20200233173A1 (en) * 2019-01-23 2020-07-23 Hon Hai Precision Industry Co., Ltd. Lens assembly and electronic device having same
CN111897081A (zh) * 2019-05-06 2020-11-06 南昌欧菲精密光学制品有限公司 镜筒、镜头结构及其组装方法以及摄像模组
CN210427911U (zh) * 2019-07-09 2020-04-28 信泰光学(深圳)有限公司 镜头装置
CN209823808U (zh) * 2019-07-15 2019-12-20 辽宁中蓝电子科技有限公司 一种全面屏小头手机摄像的杂光处理结构
CN110426760A (zh) * 2019-08-28 2019-11-08 浙江舜宇光学有限公司 一种塑胶镜片及包含该塑胶镜片的镜头
CN211149028U (zh) * 2019-12-16 2020-07-31 浙江舜宇光学有限公司 光学成像镜头

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