WO2021000128A1 - 镜头模组 - Google Patents

镜头模组 Download PDF

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Publication number
WO2021000128A1
WO2021000128A1 PCT/CN2019/094026 CN2019094026W WO2021000128A1 WO 2021000128 A1 WO2021000128 A1 WO 2021000128A1 CN 2019094026 W CN2019094026 W CN 2019094026W WO 2021000128 A1 WO2021000128 A1 WO 2021000128A1
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WO
WIPO (PCT)
Prior art keywords
annular groove
lens
close
horizontal plane
tube wall
Prior art date
Application number
PCT/CN2019/094026
Other languages
English (en)
French (fr)
Inventor
韦传冬
Original Assignee
瑞声光学解决方案私人有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 瑞声光学解决方案私人有限公司 filed Critical 瑞声光学解决方案私人有限公司
Priority to PCT/CN2019/094026 priority Critical patent/WO2021000128A1/zh
Priority to CN201921033152.6U priority patent/CN210348027U/zh
Priority to US16/914,484 priority patent/US20200409025A1/en
Priority to JP2020112098A priority patent/JP2021009377A/ja
Publication of WO2021000128A1 publication Critical patent/WO2021000128A1/zh

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Classifications

    • 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
    • G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • 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
    • G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens

Definitions

  • This application relates to the field of optical imaging, in particular to a lens module.
  • the related art lens module includes a lens barrel, a lens group accommodated in the lens barrel, and a pressing ring for holding the lens group in the lens barrel, and the pressing ring abuts against the lens group and passes glue.
  • the way is fixed to the lens barrel.
  • the pressure ring since the outer surface of the lens of the lens group will have burrs during the manufacturing process, and the pressure ring is not provided with an avoiding structure for avoiding the burrs of the lens, the pressure ring and the lens group The abutting surface is not flat, which further affects the stability of the connection between the pressure ring and the lens barrel.
  • this application provides a lens module with good reliability.
  • a lens module includes a lens barrel with an accommodation space, a lens group accommodated in the accommodation space, and a pressing ring for holding the lens group in the accommodation space.
  • a first tube wall of the hole, a second tube wall bent and extended from the first tube wall, the first tube wall and the second tube wall are enclosed to form the receiving space, and the lens group is sandwiched
  • the pressure ring includes a top surface close to the object side, a bottom surface close to the image side, connecting the top surface and the bottom surface and close to the second cylinder wall
  • the lens group includes a first lens close to the image side, and the first lens includes a side wall surface close to the second tube wall and an image side surface close to the image side and connected to the side wall surface.
  • the orthographic projection of the connection between the side surface and the side wall surface along the optical axis direction falls into the annular groove.
  • the top surface includes a first horizontal plane extending horizontally from the inner edge of the annular groove in a direction close to the optical axis and horizontally extending from the outer edge of the annular groove in a direction away from the optical axis and in line with the
  • the second horizontal plane connected to the outer side surface, the annular groove connects the first horizontal plane and the second horizontal plane, the first horizontal plane abuts against the image side surface of the first lens, and the second horizontal plane
  • the annular groove is spaced apart from the image side surface.
  • the cross section of the annular groove is semicircular.
  • the cross section of the annular groove is square.
  • the annular groove includes a curved surface connected to the first horizontal plane, a first side surface connected to the second horizontal plane and perpendicular to the second horizontal plane, and a first side surface connected to the curved surface and the first horizontal plane.
  • the groove bottom on the side.
  • the arc surface is convex outward in a direction close to the second cylinder wall.
  • the lens module of the present application is provided with an annular groove on the surface where the pressure ring abuts the lens group.
  • the annular groove is used to avoid the burrs of the lens group and strengthen the pressure ring and the lens group.
  • the mating stability of the lens group makes the connection between the pressure ring and the lens barrel stable and improves the reliability of the lens module.
  • FIG. 1 is a cross-sectional view of a lens module provided by Embodiment 1 of the application;
  • Figure 2 is a partial enlarged view of area A shown in Figure 1;
  • Fig. 3 is a schematic cross-sectional structure diagram of the pressure ring shown in Fig. 1;
  • FIG. 4 is a cross-sectional view of the lens module provided in Embodiment 2 of the application.
  • Figure 5 is a partial enlarged view of area B shown in Figure 4.
  • Fig. 6 is a schematic cross-sectional structure diagram of the pressure ring shown in Fig. 4;
  • FIG. 7 is a cross-sectional view of a lens module provided in Embodiment 3 of the application.
  • Fig. 8 is a partial enlarged view of area C shown in Fig. 7;
  • FIG. 9 is a schematic cross-sectional structure diagram of the pressure ring shown in FIG. 7.
  • This embodiment provides a lens module 100, which includes a lens barrel 10, a lens group 30 housed in the lens barrel 10, and a pressing ring 50 for holding the lens group 30 in the lens barrel 10.
  • the lens barrel 10 includes a first barrel wall 11 with a light through hole and a second barrel wall 12 bent and extended from the first barrel wall 11.
  • the first tube wall 11 and the second tube wall 12 jointly enclose a receiving space, and the receiving space is used for receiving the lens group 30.
  • the lens group 30 is sandwiched between the first cylinder wall 11 and the pressure ring 50.
  • the lens group 30 is composed of a plurality of lenses.
  • the lens group 30 is composed of five lenses.
  • the lens group 30 includes a first lens 31, which is a lens close to the image side.
  • the first lens 31 includes a side wall surface 311 close to the second cylindrical wall 12 and an image side surface 312 close to the image side and connected to the side wall surface 311.
  • the pressing ring 50 includes a top surface 51 close to the object side, a bottom surface 52 close to the image side, an outer surface 53 connecting the top surface 51 and the bottom surface 52 and close to the second cylindrical wall 12, and a bottom surface 53 from the top side.
  • the surface 51 is recessed toward the bottom surface 52 to form an annular groove 54.
  • the annular groove 54 is located at an end of the top surface 51 close to the outer side surface 53, and the annular groove 54 is used to avoid the burrs of the first lens 31.
  • the top surface 51 abuts against the image side surface 312 of the first lens 31, so that the pressing ring 50 presses the first lens 31 into the lens barrel 10. Since the first lens 31 is prone to burrs during the manufacturing process, especially the position where the image side surface 312 of the first lens 31 is connected to the side wall surface 311, it is placed on the top surface 51 of the pressure ring 50 The annular groove 51 is provided to avoid the burrs of the first lens 31 and to enhance the stability of the pressing ring 50 and the first lens 31 to enhance the reliability of the lens module 100.
  • the orthographic projection of the connection between the image side surface 312 and the side wall surface 311 in the direction of the optical axis OO' falls into the annular groove 54, due to the connection between the image side surface 312 and the side wall surface 311
  • the area is the most prone to burrs, so the above structure can achieve a better air avoidance effect.
  • the top surface 51 includes a first horizontal plane 511 extending horizontally from the inner edge of the annular groove 54 toward the direction close to the optical axis OO', and a first horizontal plane 511 extending from the outer edge of the annular groove 54 away from the optical axis.
  • a second horizontal plane 512 extending horizontally in the OO' direction and connected to the outer side surface 53.
  • the annular groove 54 connects the first horizontal plane 511 and the second horizontal plane 512, and the first horizontal plane 511 abuts against the image side surface 312 of the first lens 31, and the second horizontal plane 512 and the
  • the annular groove 54 and the image side surface 312 are spaced apart, and the second horizontal plane 512, the annular groove 54 and the image side surface 312 jointly enclose a space to avoid burrs.
  • This structural design can maximize the use of space and avoid The empty effect is good.
  • the cross section of the annular groove 54 is semicircular.
  • FIGS. 4 to 6 for a schematic diagram of the second embodiment of the lens module provided by this application.
  • the structure of the second embodiment is the same as that of the first embodiment. The only difference is that the cross section of the annular groove 54 is square.
  • FIGS. 7-9 for a schematic diagram of a third embodiment of the lens module provided by this application.
  • the structure of the third embodiment is the same as that of the first embodiment.
  • the cross section of the annular groove 54 is composed of an arc shape and a square shape.
  • the annular groove 54 includes an arc surface 541 connected to the first horizontal surface 511, a first side surface 542 connected to the second horizontal surface 512 and perpendicular to the second horizontal surface 512, and a first side surface 542 connected to the arc surface.
  • the arc surface 541 protrudes toward the direction close to the second cylinder wall 12 to further optimize the air avoidance effect.
  • the lens module of the present application is provided with an annular groove on the surface where the pressure ring abuts the lens group.
  • the annular groove is used to avoid the burrs of the lens group and strengthen the pressure ring and the lens group.
  • the mating stability of the lens group makes the connection between the pressure ring and the lens barrel stable and improves the reliability of the lens module.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)

Abstract

一种镜头模组(100)，其包括具有收容空间的镜头筒(10)、收容于收容空间内的镜片组(30)和将镜片组(30)固持于收容空间内的压环(50)，镜头筒(10)包括开设有通光孔的第一筒壁(11)、自第一筒壁(11)弯折延伸的第二筒壁(12)，第一筒壁(11)与第二筒壁(12)围设形成收容空间，镜片组(30)夹设在第一筒壁(11)与压环(50)之间，压环(50)包括靠近物侧的顶面(51)、靠近像侧的底面(52)、连接顶面(51)与底面(52)并靠近第二筒壁(12)的外侧面(53)和自顶面(51)向底面(52)凹陷形成的环形凹槽(54)，环形凹槽(54)位于顶面(51)靠近外侧面(53)的一端，环形凹槽(54)用于避空镜片组(30)的毛边。

Description

镜头模组 技术领域
本申请涉及光学成像领域，尤其涉及一种镜头模组。
 背景技术
近年来随着科技的不断发展，电子设备不断地朝着智能化发展，除了数码相机外，便携式电子设备例如平板电脑、手机等也都配备了拍照摄像功能的镜头模组，以及汽车等交通工具上也配备有具备拍照摄像功能的镜头模组，以满足用户随时拍照的需要。
 技术问题
相关技术的镜头模组包括镜头筒、收容于镜头筒内的镜片组及将所述镜片组固持于所述镜头筒内的压环，所述压环与所述镜片组抵接并通过点胶的方式固定于镜头筒。
然而，由于所述镜片组的镜片在制作过程中外表面会产生毛边，而所述压环并未设置用于避空所述镜片的毛边的避空结构，使得所述压环与所述镜片组相抵接的表面不平坦，进而影响所述压环与所述镜头筒连接的稳定性。
因此，有必要提供一种改进的镜头模组来解决上述问题。
 技术解决方案
针对相关技术中的镜头模组中压环与镜头筒连接不稳定的技术问题，本申请提供了一种可靠性良好的镜头模组。
一种镜头模组，包括具有收容空间的镜头筒、收容于所述收容空间内的镜片组和将所述镜片组固持于所述收容空间内的压环，所述镜头筒包括开设有通光孔的第一筒壁、自所述第一筒壁弯折延伸的第二筒壁，所述第一筒壁与所述第二筒壁围设形成所述收容空间，所述镜片组夹设在所述第一筒壁与所述压环之间，所述压环包括靠近物侧的顶面、靠近像侧的底面、连接所述顶面与所述底面并靠近所述第二筒壁的外侧面和自所述顶面向所述底面凹陷形成的环形凹槽，所述环形凹槽位于所述顶面靠近所述外侧面的一端，所述环形凹槽用于避空所述镜片组的毛边。
优选的，所述镜片组包括靠近像侧的第一镜片，所述第一镜片包括靠近所述第二筒壁的侧壁面和靠近像侧并与所述侧壁面相连的像侧面，所述像侧面与所述侧壁面的连接处沿光轴方向的正投影落入所述环形凹槽内。
优选的，所述顶面包括自所述环形凹槽内边缘朝靠近所述光轴方向水平延伸的第一水平面和自所述环形凹槽外边缘朝远离所述光轴方向水平延伸并与所述外侧面相连的第二水平面，所述环形凹槽连接所述第一水平面和所述第二水平面，所述第一水平面与所述第一镜片的像侧面抵接设置，所述第二水平面及所述环形凹槽与所述像侧面间隔设置。
优选的，所述环形凹槽的横截面呈半圆形。
优选的，所述环形凹槽的横截面呈方形。
优选的，所述环形凹槽包括与所述第一水平面相连的弧面、与所述第二水平面相连并垂直于所述第二水平面的第一侧面和连接所述弧面与所述第一侧面的槽底。
优选的，所述弧面向靠近所述第二筒壁方向外凸。
 有益效果
与相关技术相比，本申请的镜头模组通过在压环与镜片组相抵接的表面设置环形凹槽，所述环形凹槽用于避空所述镜片组的毛边，增强所述压环与所述镜片组的配合稳定性，从而使得所述压环与所述镜头筒的连接稳定，提升所述镜头模组的可靠性。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1为本申请实施例一提供的镜头模组的剖面图；
图2为图1所示A区域的局部放大图；
图3为图1所示压环的横截面结构示意图；
图4为本申请实施例二提供的镜头模组的剖面图；
图5为图4所示B区域的局部放大图；
图6为图4所示压环的横截面结构示意图；
图7为本申请实施例三提供的镜头模组的剖面图；
图8为图7所示C区域的局部放大图；
图9为图7所示压环的横截面结构示意图。
 本发明的最佳实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的范围。
实施例一
请结合参阅图1至图3。本实施例提供了一种镜头模组100，其包括镜头筒10、收容于所述镜头筒10内的镜片组30及将所述镜片组30固持于所述镜头筒10内的压环50。
所述镜头筒10包括开设有通光孔的第一筒壁11及自所述第一筒壁11弯折延伸的第二筒壁12。所述第一筒壁11与所述第二筒壁12共同围合形成收容空间，所述收容空间用于收容所述镜片组30。所述镜片组30夹设在所述第一筒壁11与所述压环50之间。
所述镜片组30由多个镜片组成。在本实施例中，所述镜片组30由五个镜片组成。具体地，所述镜片组30包括第一镜片31，所述第一镜片31为靠近像侧的镜片。所述第一镜片31包括靠近所述第二筒壁12的侧壁面311和靠近像侧并与所述侧壁面311相连的像侧面312。
所述压环50包括靠近物侧的顶面51、靠近像侧的底面52、连接所述顶面51与所述底面52并靠近所述第二筒壁12的外侧面53和自所述顶面51向所述底面52凹陷形成的环形凹槽54。所述环形凹槽54位于所述顶面51靠近所述外侧面53的一端，所述环形凹槽54用于避空所述第一镜片31的毛边。
所述顶面51与所述第一镜片31的像侧面312抵接，从而使得所述压环50将所述第一镜片31压紧于所述镜头筒10内。由于所述第一镜片31在制作过程中易产生毛边，特别是所述第一镜片31的像侧面312与所述侧壁面311相连接的位置，因此在所述压环50的顶面51上设置所述环形凹槽51来避空所述第一镜片31的毛边，增强所述压环50与所述第一镜片31配合的稳定性，从而提升所述镜头模组100的可靠性。优选地，所述像侧面312与所述侧壁面311的连接处沿光轴OO'方向的正投影落入所述环形凹槽54内，由于所述像侧面312与所述侧壁面311的连接处是最容易产生毛边的部位，因此采用上述结构能够达到较好的避空效果。
具体地，所述顶面51包括自所述环形凹槽54内边缘朝靠近所述光轴OO'方向水平延伸的第一水平面511和自所述环形凹槽54外边缘朝远离所述光轴OO'方向水平延伸并与所述外侧面53相连的第二水平面512。所述环形凹槽54连接所述第一水平面511和所述第二水平面512，所述第一水平面511与所述第一镜片31的像侧面312抵接设置，所述第二水平面512及所述环形凹槽54与所述像侧面312间隔设置，所述第二水平面512、环形凹槽54及像侧面312共同围成避空毛边的空间，这样的结构设计可以最大化的利用空间，避空效果好。
在本实施例中，所述环形凹槽54的横截面呈半圆形。
实施例二
请结合参阅图4-图6，为本申请提供的镜头模组的第二种实施方式的示意图。实施例二的结构与实施例一整体相同，唯一区别点在于：所述环形凹槽54的横截面呈方形。
实施例三
请结合参阅图7-图9，为本申请提供的镜头模组的第三种实施方式的示意图。实施例三的结构与实施例一整体相同，唯一区别点在于：所述环形凹槽54的横截面由弧形和方形组成。具体地，所述环形凹槽54包括与所述第一水平面511相连的弧面541、与所述第二水平面512相连并垂直于所述第二水平面512的第一侧面542和连接所述弧面541与所述第一侧面542的槽底543。优选地，所述弧面541向靠近所述第二筒壁12方向外凸，进一步优化避空效果。
与相关技术相比，本申请的镜头模组通过在压环与镜片组相抵接的表面设置环形凹槽，所述环形凹槽用于避空所述镜片组的毛边，增强所述压环与所述镜片组的配合稳定性，从而使得所述压环与所述镜头筒的连接稳定，提升所述镜头模组的可靠性。
以上所述的仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。
 本发明的实施方式
在此处键入本发明的实施方式描述段落。
 工业实用性
在此处键入工业实用性描述段落。
 序列表自由内容
在此处键入序列表自由内容描述段落。

Claims (10)

  1. 一种镜头模组，包括具有收容空间的镜头筒、收容于所述收容空间内的镜片组和将所述镜片组固持于所述收容空间内的压环，所述镜头筒包括开设有通光孔的第一筒壁、自所述第一筒壁弯折延伸的第二筒壁，所述第一筒壁与所述第二筒壁围设形成所述收容空间，所述镜片组夹设在所述第一筒壁与所述压环之间，其特征在于，所述压环包括靠近物侧的顶面、靠近像侧的底面、连接所述顶面与所述底面并靠近所述第二筒壁的外侧面和自所述顶面向所述底面凹陷形成的环形凹槽，所述环形凹槽位于所述顶面靠近所述外侧面的一端，所述环形凹槽用于避空所述镜片组的毛边。
  2. 根据权利要求1所述的镜头模组，其特征在于，所述镜片组包括靠近像侧的第一镜片，所述第一镜片包括靠近所述第二筒壁的侧壁面和靠近像侧并与所述侧壁面相连的像侧面，所述像侧面与所述侧壁面的连接处沿光轴方向的正投影落入所述环形凹槽内。
  3. 根据权利要求2所述的粘接片，其特征在于，所述顶面包括自所述环形凹槽内边缘朝靠近所述光轴方向水平延伸的第一水平面和自所述环形凹槽外边缘朝远离所述光轴方向水平延伸并与所述外侧面相连的第二水平面，所述环形凹槽连接所述第一水平面和所述第二水平面，所述第一水平面与所述第一镜片的像侧面抵接设置，所述第二水平面及所述环形凹槽与所述像侧面间隔设置。
  4. 根据权利要求1所述的镜头模组，其特征在于，所述环形凹槽的横截面呈半圆形。
  5. 根据权利要求1所述的镜头模组，其特征在于，所述环形凹槽的横截面呈方形。
  6. 根据权利要求3所述的镜头模组，其特征在于，所述环形凹槽包括与所述第一水平面相连的弧面、与所述第二水平面相连并垂直于所述第二水平面的第一侧面和连接所述弧面与所述第一侧面的槽底。
  7. 根据权利要求6所述的镜头模组，其特征在于，所述弧面向靠近所述第二筒壁方向外凸。
  8. 在此处键入权利要求项8。
  9. 在此处键入权利要求项9。
  10. 在此处键入权利要求项10。
PCT/CN2019/094026 2019-06-29 2019-06-29 镜头模组 WO2021000128A1 (zh)

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US16/914,484 US20200409025A1 (en) 2019-06-29 2020-06-29 Lens module
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CN215575870U (zh) 2021-12-16 2022-01-18 诚瑞光学(苏州)有限公司 镜头组件

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