WO2020258330A1 - Module d'objectif - Google Patents

Module d'objectif Download PDF

Info

Publication number
WO2020258330A1
WO2020258330A1 PCT/CN2019/093916 CN2019093916W WO2020258330A1 WO 2020258330 A1 WO2020258330 A1 WO 2020258330A1 CN 2019093916 W CN2019093916 W CN 2019093916W WO 2020258330 A1 WO2020258330 A1 WO 2020258330A1
Authority
WO
WIPO (PCT)
Prior art keywords
glue
lens
lens module
wall
containing groove
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/093916
Other languages
English (en)
Chinese (zh)
Inventor
王海龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Optics Solutions Pte Ltd
Original Assignee
AAC Optics Solutions Pte Ltd
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 AAC Optics Solutions Pte Ltd filed Critical AAC Optics Solutions Pte Ltd
Priority to PCT/CN2019/093916 priority Critical patent/WO2020258330A1/fr
Priority to CN201921033036.4U priority patent/CN210639324U/zh
Publication of WO2020258330A1 publication Critical patent/WO2020258330A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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

Definitions

  • This application relates to the field of optical imaging technology, and specifically refers to a lens module.
  • portable electronic devices With the continuous development of technology, portable electronic devices continue to develop in the direction of intelligence and miniaturization.
  • portable electronic devices such as tablet computers and mobile phones, are also equipped with lens modules with shooting functions.
  • the existing lens module generally includes a lens barrel and a lens.
  • the lens is located in the lens barrel and is fixed on the lens barrel by dispensing glue.
  • dispensing glue the amount of glue is not easy to control.
  • excess glue may overflow into the optical part of the lens for imaging, affecting the imaging of the lens module.
  • the purpose of this application is to provide a lens module, which aims to solve the problem that when the existing lens module is connected to the lens barrel by dispensing glue, the glue easily overflows to the optical part of the lens and affects the imaging of the lens module. problem.
  • a lens module including a lens barrel and a lens
  • the lens barrel includes a top wall with a light hole and a tube wall bent and extended from the edge of the top wall, the top wall is connected with the tube wall And enclosed to form a cavity;
  • the lens is accommodated in the cavity, and the lens includes an optical part for imaging and a connecting part arranged around the optical part.
  • the connecting part includes a connecting object side surface and an image side surface and abuts against the tube A side surface of the wall, the barrel wall includes an abutting surface that abuts against the side surface;
  • the lens module is further provided with a glue-containing groove formed by a depression formed by at least one of the side surface and the abutting surface, and the connecting portion further includes a self-image side surface facing the object side surface.
  • the glue injection hole communicating with the glue container.
  • the abutting surface is recessed in a direction away from the side surface to form a first glue containing groove
  • the side surface is recessed in a direction away from the abutting surface to form a second glue containing groove
  • the first A glue containing groove communicates with the second glue containing groove to form the glue containing groove
  • the glue injection hole is connected with the second glue containing groove.
  • At least one of the first glue containing groove and the second glue containing groove is an annular groove.
  • the inner wall of the first glue holding tank includes a first connecting surface and a second connecting surface sequentially arranged in a direction from the object side to the image side, and the first connecting surface is opposite to the second connecting surface It is provided that the first connection surface is inclined from the object side to the image side and away from the optical axis, and the second connection surface is inclined from the object side to the image side and close to the optical axis.
  • the inner wall of the first glue container further includes a first top surface, the first top surface is located between the first connection surface and the second connection surface, and the first top surface Parallel to the optical axis.
  • the inner wall of the second glue holding tank includes a third connecting surface and a fourth connecting surface arranged in a direction from the object side to the image side, and the third connecting surface is opposite to the fourth connecting surface.
  • the third connection surface is inclined from the object side to the image side and close to the optical axis
  • the fourth connection surface is inclined from the object side to the image side and away from the optical axis.
  • the inner wall of the second glue containing groove further includes a second top surface, the second top surface is located between the third connection surface and the fourth connection surface, and the second top surface Parallel to the optical axis.
  • the axis of the glue injection hole is a straight line.
  • the glue injection hole extends obliquely from the image side surface of the connecting portion toward the object side surface and away from the optical axis.
  • the lens is a plurality of lenses, the lens includes a first lens, a second lens, a third lens, and a fourth lens arranged in sequence from the object side to the image side.
  • the fourth lens is a plurality of lenses, the lens includes a first lens, a second lens, a third lens, and a fourth lens arranged in sequence from the object side to the image side. The fourth lens.
  • the beneficial effect of the present application lies in that the above-mentioned lens module is provided with a glue container and a glue injection hole, so that glue can be injected into the glue container from the glue hole to connect the lens with the lens barrel.
  • glue can be injected into the glue container from the glue hole to connect the lens with the lens barrel.
  • the glue container is filled with glue
  • the excess glue can be contained in the glue injection hole to prevent the glue from overflowing to the optical part of the lens and affecting the imaging of the lens module.
  • the contact area between the glue and at least one of the lens barrel and the lens can be increased, so that the connection between the lens barrel and the lens is more reliable, thereby improving the imaging of the lens module and the electronic device using the lens module quality.
  • FIG. 1 is a cross-sectional view of a lens module according to an embodiment of the application
  • FIG. 2 is a schematic diagram of the structure of the fourth lens in FIG. 1;
  • FIG. 3 is a schematic diagram of the structure of the lens barrel in FIG. 1;
  • Figure 4 is a partial enlarged view of A in Figure 1;
  • FIG. 5 is a schematic diagram of the structure in FIG. 4 when it is filled with glue.
  • Lens barrel 110, top wall; 111, light hole; 120, barrel wall; 121, inner surface; 1211, abutment surface; 122, outer surface; 123, first glue tank; 1231, first connection Surface; 1232, the first bottom surface; 1233, the second connecting surface;
  • optical part 220, connecting part; 221, object side; 222, image side; 223, side surface; 224, second glue container; 2241, third connecting surface; 2242, second bottom surface; 2243, fourth Connecting surface; 225, injection hole; 201, first lens; 202, second lens; 203, third lens; 204, fourth lens;
  • an embodiment of the present application provides a lens module 10 applied to an electronic device.
  • the lens module 10 includes a lens barrel 100 and lenses.
  • the lens barrel 100 includes a top wall 110 with a light-passing hole 111 and a barrel wall 120 bent and extended from the top wall 110.
  • the top wall 110 and the barrel wall 120 are connected and enclosed to form a cavity, and the lens is accommodated in the cavity.
  • the number of lenses is four, including a first lens 201, a second lens 202, a third lens 203, and a fourth lens 204 that are sequentially housed in the cavity from the object side to the image side. Understandably, in other embodiments, the number of lenses can also be changed according to actual needs.
  • the fourth lens 204 includes an optical portion 210 for imaging and a connecting portion 220 disposed around the optical portion 210.
  • the connecting portion 220 includes an object side surface 221 and an image side surface 222 oppositely disposed, and a side surface 223 connecting the object side surface 221 and the image side surface 222.
  • the barrel wall 120 includes an inner surface 121 and an outer surface 122 oppositely disposed, and the inner surface 121 includes an abutting surface 1211 that abuts against the side surface 223, and the abutting surface 1211 is recessed in a direction away from the side surface 223 to form a first plastic container
  • the side surface 223 of the groove 123 is recessed away from the contact surface 1211 to form a second glue-containing groove 224.
  • the first glue containing groove 123 communicates with the second glue containing groove 224 to form the glue containing groove 101.
  • the image side 222 is also provided with a glue injection hole 225, and the glue injection hole 225 is in communication with the second glue container 224, so that glue can be injected from the glue hole 225 into the first glue container 123 and the second glue container 224. ⁇ 101 ⁇ In the glue tank 101.
  • the glue injection hole 225 can also directly communicate with the first glue containing groove 123 and communicate with the second glue containing groove 224 through the first glue containing groove 123.
  • the glue containing groove 101 may also be formed only by the abutment surface 1211 or the side surface 223 recessed, that is, the glue is only filled in the first glue containing groove 123 or the second glue containing groove 224.
  • the first glue containing groove 123 and the second glue containing groove 224 are both annular grooves.
  • the glue can be filled into the first glue container 123 and the second glue container 224 to connect the fourth lens 204 to the lens barrel 100.
  • the excess glue can be contained in the glue injection hole 225 to prevent the glue from overflowing to the optics of the fourth lens 204
  • the part 210 affects the imaging of the lens module 10.
  • the contact area of the glue with the lens barrel 100 and the fourth lens 204 can be increased to enhance the stability of the lens module 10, thereby improving the lens module 10 And the imaging quality of the electronic equipment using the lens module 10.
  • one of the first glue containing groove 123 or the second glue containing groove 224 may also be a plurality of grooves spaced around the optical axis 300.
  • the glue injection hole 225 may also be provided with multiple, and the number of the glue holes 225 is the same as the groove forming the second glue containing groove 224 The number is the same, and each injection hole 225 corresponds to each groove.
  • glue can be injected into multiple glue injection holes 225 at the same time to improve assembly efficiency and ensure that each groove forming the second glue container 224 is filled with glue.
  • the number of glue injection holes 225 can also be only one.
  • the glue is injected from the glue injection hole 225 and flows into the first glue container 123 from the groove corresponding to the glue injection hole 225.
  • the glue can be filled into the remaining grooves, and the excess glue can be contained in the glue injection hole 225.
  • the second glue containing groove 224 may be an annular groove, and the first glue containing groove 123 may be a plurality of grooves arranged around the optical axis 300.
  • the first glue containing groove 123 and the second glue containing groove 224 are both a plurality of grooves arranged at intervals around the optical axis 300.
  • the number of grooves forming the first glue containing groove 123 is the same as the number of grooves forming the second glue containing groove 224, and each groove forming the first glue containing groove 123 corresponds to each groove forming the second glue The groove of the glue groove 224.
  • glue injection holes 225 there are also multiple glue injection holes 225, and the number of glue injection holes 225 is the same as the number of grooves forming the second glue container 224. Each glue hole 225 corresponds to each second glue container. The groove of the groove 224. When assembling, the multiple glue holes 225 need to be injected with glue. The glue flows from the glue holes 225 into the grooves forming the first glue container 123 and the grooves forming the second glue container 224, so as The lens 204 and the lens barrel 100 are connected by glue.
  • the first glue-containing groove 123 includes a first connecting surface 1231, a first bottom surface 1232, and a second connecting surface 1233 that are sequentially connected in the direction from the object side to the image side. Both the first connecting surface 1231 and the second connecting surface 1233 are connected to the contact surface 1211. In the direction from the object side to the image side, the first connection surface 1231 is inclined in a direction away from the optical axis 300, and the second connection surface 1233 is inclined in a direction closer to the optical axis 300.
  • the second glue container 224 includes a third connection surface 2241, a second bottom surface 2242, and a fourth connection surface 2243 that are sequentially connected in the direction from the object side to the image side, and the third connection surface 2241 and the fourth connection surface 2243 are both connected to The side surfaces 223 are connected.
  • the third connection surface 2241 is inclined toward the optical axis 300
  • the fourth connection surface 2243 is inclined toward the direction away from the optical axis 300. That is, the size of the entrance of the first glue container 123 is the largest, and the size of the exit of the second glue container 224 is the largest, so that the glue in the glue injection hole 225 can be quickly filled into the first glue container 123 and the second glue container 123.
  • the inclined arrangement of the first connecting surface 1231 and the second connecting surface 1233 can not only ensure the contact area between the glue and the first glue container 123, but also ensure the strength of the lens barrel 100 to prevent the lens barrel 100 from increasing the first glue container.
  • the contact area between 123 and the glue weakens the strength of the lens barrel 100 at the position of the first glue container 123.
  • the inclined arrangement of the third connecting surface 2241 and the fourth connecting surface 2243 can not only ensure the contact area of the glue and the second glue container 224, but also ensure the strength of the fourth lens 204.
  • first bottom surface 1232 and the second bottom surface 2242 may also be eliminated.
  • first connection surface 1231 is directly connected to the second connection surface 1233
  • the third connection surface 2241 is directly connected to the fourth connection surface 2243
  • the first glue containing groove 123 and the second glue containing groove 224 are both triangular grooves.
  • connection between the first connection surface 1231 and the first bottom surface 1232, the connection between the second connection surface 1233 and the first bottom surface 1232, and the connection between the third connection surface 2241 and the second bottom surface 2242 The connection, the connection between the fourth connection surface 2243 and the second bottom surface 2242, and the connection between the glue injection hole 225 and the second glue container 224 are all curved structures to avoid stress concentration affecting the lens barrel 100 and the fourth lens 204 strength.
  • the axis of the glue injection hole 225 is a straight line to reduce processing difficulty.
  • the axis of the glue injection hole 225 is inclined toward the optical axis 300. In this way, the thickness of the structure between the inner wall of the injection hole 225 and the side surface 223 of the fourth lens 204 gradually becomes thicker from the object side to the image side, which can ensure the strength of the fourth lens 204 and extend the injection
  • the length of the axis of the hole 225 increases the volume of the glue injection hole 225 and ensures that excess glue does not overflow from the glue injection hole 225.
  • the glue injection hole 225 is a round hole.
  • the cross section of the glue hole 225 may also have other shapes, and the axis of the glue hole 225 may also be non-linear.

Landscapes

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

Abstract

L'invention concerne un module d'objectif (10), qui comprend un cylindre d'objectif (100) et des objectifs, le cylindre d'objectif (100) comprenant une paroi supérieure (110) ayant un trou traversant de lumière (111) et une paroi de cylindre (120) s'étendant de manière courbée à partir du bord de la paroi supérieure (110), et la paroi supérieure (110) et la paroi de cylindre (120) étant reliées et fermées afin de former une chambre ; les objectifs sont contenus dans la chambre, et comprennent une partie optique (210) utilisée pour l'imagerie et une partie de raccordement (220) qui est disposée autour de la partie optique (210). La partie de raccordement (220) comprend une surface latérale (223) qui se raccorde à une surface latérale d'objet (221) et à la surface côté image (222), et vient en butée contre la paroi de cylindre (120) et la paroi de cylindre (120) comprend une surface de butée (1211) qui vient en butée contre la surface latérale (223). Le module d'objectif (10) est en outre pourvu d'une rainure contenant de la colle (101) qui est formée en formant un évidement dans la surface latérale (223) et/ou la surface de butée (1211). Et la partie de raccordement (220) comprend en outre un orifice d'injection de colle (225) qui est formé en formant un évidement à partir de la surface côté image (222) vers la surface côté objet (221) et qui est en communication avec la rainure contenant de la colle (101). Lors de l'assemblage, la colle peut être injectée au moyen de l'orifice d'injection de colle (225) dans la rainure contenant de la colle (101), de manière à relier les objectifs au cylindre d'objectif (100), et la colle supplémentaire dans la rainure contenant de la colle (101) peut être contenue dans l'orifice d'injection de colle (225) afin d'empêcher la colle de déborder de la partie optique (210) de l'objectif pour affecter l'imagerie du module d'objectif (10).
PCT/CN2019/093916 2019-06-28 2019-06-28 Module d'objectif Ceased WO2020258330A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2019/093916 WO2020258330A1 (fr) 2019-06-28 2019-06-28 Module d'objectif
CN201921033036.4U CN210639324U (zh) 2019-06-28 2019-07-02 镜头模组

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/093916 WO2020258330A1 (fr) 2019-06-28 2019-06-28 Module d'objectif

Publications (1)

Publication Number Publication Date
WO2020258330A1 true WO2020258330A1 (fr) 2020-12-30

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ID=70792422

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/093916 Ceased WO2020258330A1 (fr) 2019-06-28 2019-06-28 Module d'objectif

Country Status (2)

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CN (1) CN210639324U (fr)
WO (1) WO2020258330A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220056698A (ko) * 2020-10-28 2022-05-06 삼성전기주식회사 카메라 모듈
CN112739127A (zh) * 2020-12-28 2021-04-30 维沃移动通信有限公司 电子设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61249010A (ja) * 1985-04-26 1986-11-06 Olympus Optical Co Ltd 接着剤注入孔を持つ光学素子
CN102486560A (zh) * 2010-12-04 2012-06-06 鸿富锦精密工业（深圳）有限公司 相机模组
CN105717602A (zh) * 2014-12-23 2016-06-29 三星电机株式会社 镜头组件以及包括该镜头组件的相机模块
CN206339758U (zh) * 2016-12-10 2017-07-18 瑞声科技(新加坡)有限公司 镜头模组
CN207352242U (zh) * 2017-06-28 2018-05-11 瑞声科技(新加坡)有限公司 镜头组件
CN109283656A (zh) * 2017-07-19 2019-01-29 大立光电股份有限公司 成像镜头、相机模块及电子装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61249010A (ja) * 1985-04-26 1986-11-06 Olympus Optical Co Ltd 接着剤注入孔を持つ光学素子
CN102486560A (zh) * 2010-12-04 2012-06-06 鸿富锦精密工业（深圳）有限公司 相机模组
CN105717602A (zh) * 2014-12-23 2016-06-29 三星电机株式会社 镜头组件以及包括该镜头组件的相机模块
CN206339758U (zh) * 2016-12-10 2017-07-18 瑞声科技(新加坡)有限公司 镜头模组
CN207352242U (zh) * 2017-06-28 2018-05-11 瑞声科技(新加坡)有限公司 镜头组件
CN109283656A (zh) * 2017-07-19 2019-01-29 大立光电股份有限公司 成像镜头、相机模块及电子装置

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