WO2020140588A1 - 镜头模组及电子设备 - Google Patents

镜头模组及电子设备 Download PDF

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Publication number
WO2020140588A1
WO2020140588A1 PCT/CN2019/113829 CN2019113829W WO2020140588A1 WO 2020140588 A1 WO2020140588 A1 WO 2020140588A1 CN 2019113829 W CN2019113829 W CN 2019113829W WO 2020140588 A1 WO2020140588 A1 WO 2020140588A1
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WO
WIPO (PCT)
Prior art keywords
lens
support
engaging portion
lens module
module according
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/CN2019/113829
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English (en)
French (fr)
Inventor
马杰
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 Communication Technologies Changzhou Co Ltd
Original Assignee
AAC Communication Technologies Changzhou Co Ltd
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Filing date
Publication date
Application filed by AAC Communication Technologies Changzhou Co Ltd filed Critical AAC Communication Technologies Changzhou Co Ltd
Publication of WO2020140588A1 publication Critical patent/WO2020140588A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • 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
    • G02B7/022—Mountings, adjusting means, or light-tight connections, for optical elements for lenses lens and mount having complementary engagement means, e.g. screw/thread
    • 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
    • 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
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/04—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having two components only
    • G02B9/06—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having two components only two + components
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof

Definitions

  • This application relates to the field of optical imaging technology, specifically referring to lens modules and electronic equipment.
  • the lens module generally includes a lens barrel and a lens group housed in the lens barrel.
  • the lens group includes a plurality of lenses, which are stacked.
  • the edge thickness of the lens needs to be increased, and the thickness of the middle part of the lens is thin, making lens forming difficult. Therefore, it is necessary to provide a lens barrel module and electronic equipment including the lens module.
  • the purpose of the present application is to provide a lens module and electronic equipment to solve the problem of existing lens forming difficulties.
  • This application provides a lens module, including: a lens barrel with a cavity inside;
  • the lens group includes a first lens and a second lens arranged along the extending direction of the optical axis, a side of the first lens close to the second lens is provided with a first engagement portion, and the second lens is close to the A second engaging portion is provided on one side of the first lens, the first engaging portion is engaged with the second engaging portion, and the first engaging portion is away from the second engaging portion The optical axis; and
  • the support portion includes a first support surface and a second support surface that are oppositely arranged, the first support surface abuts the first lens, the second support surface abuts the second lens, and the The supporting portion is provided around the second engaging portion.
  • the outer diameter of the second engaging portion gradually decreases from the second lens to the first lens.
  • the support portion is an annular structure.
  • the support portion further includes an outer side surface and an inner side surface that are oppositely disposed, the outer side surface and the inner side surface are both connected to the first support surface and the second support surface, and the outer side surface Contact with the lens barrel.
  • the inner side surface is spaced from the second engaging portion.
  • the first lens includes a first optical portion and a first connecting portion disposed around the first optical portion, the first connecting portion is provided with the first engaging portion, the first The two lenses include a second optical portion and a second connecting portion disposed around the second optical portion, and the second engaging portion is provided on the second connecting portion.
  • the lens module further includes a light shielding portion, and the light shielding portion is disposed between the first engaging portion and the second engaging portion.
  • the first lens and the second lens are sequentially received in the cavity from the object side to the image side.
  • the outer diameter of the support portion is larger than the outer diameter of the first lens.
  • the present application also provides an electronic device including the above lens module.
  • the beneficial effect of the present application is that, by providing the support portion, the second lens is in contact with the first lens through the support portion, the thickness of the edge of the first lens or the second lens can be reduced, which is beneficial to the molding of the first lens and the second lens.
  • assembly deformation occurs on the support portion, thereby avoiding deformation of the first lens and the second lens and affecting imaging quality.
  • the engagement of the first lens and the second lens makes the optical axes of the first lens and the second lens easier to align, which can improve the assembly accuracy of the lens module, thereby improving the imaging quality of the lens module and the electronic device.
  • FIG. 1 is a cross-sectional view of a lens module according to an embodiment of the present application.
  • FIG. 2 is a partially enlarged view at A in FIG. 1;
  • FIG. 3 is a cross-sectional view of the first lens and the second lens in FIG. 1.
  • the lens module 10 of the present application is applied to electronic equipment.
  • the lens module 10 includes a lens barrel 100, a lens group, and a support 400.
  • the lens barrel 100 includes an inner wall 111 and an outer wall 112 oppositely arranged, and the inner wall 111 surrounds to form a cavity 113.
  • the lens group includes a first lens 200 and a second lens 300 which are accommodated in the cavity 113 in order from the object side to the image side.
  • the object side refers to the side where the object to be photographed is located, and the image side is the imaging side.
  • the light enters the cavity 113 from the object side, exits the cavity 113 after passing through the lens group, and is imaged on the image side.
  • the lens barrel 100 includes a barrel wall 110 and a top wall 120, the barrel wall 110 encloses to form a cavity 113, the top wall 120 is provided with a light entrance hole 121 communicating with the cavity 113, and the top wall 120 is in contact with the lens group To limit the movement of the lens group in the direction from the image side to the object side.
  • the lens module 10 further includes a pressure ring 600 connected to the barrel wall 110 and abutting the lens group to restrict the movement of the lens group in the direction from the object side to the image side.
  • the first lens 200 includes a first object side 201, a first image side 202, and a first side 203.
  • the first object side 201 is opposite to the first image side 202, the first side 203 connects the first object side 201 and the first image side 202, and the first image side 202 is provided with a first engaging portion 204, the first engaging The portion 204 is a protrusion extending in the direction from the object side to the image side.
  • the second lens 300 includes a second object side 301, a second image side 302, and a second side 303.
  • the second object side 301 is opposite to the second image side 302, and the second side 303 connects the second object side 301 and the second image
  • the side surface 302, and the second object side surface 301 is provided with a second engaging portion 304 engaged with the first engaging portion 204, the second engaging portion 304 is a protrusion extending in the direction from the image side to the object side, and the second The engaging portion 304 is closer to the optical axis than the first engaging portion 204.
  • the supporting portion 400 is disposed around the second engaging portion 304, and the supporting portion 400 includes a first supporting surface 410 and a second supporting surface 420 oppositely disposed, the first supporting surface 410 abuts on the first image side surface 202, and the second supporting surface 420 abuts the second object side surface 301.
  • the first image side 202 includes a first end surface 221, a first connection surface 223, and a first bottom surface 222 that are sequentially connected along the radial inward direction of the first lens 200, and the first end surface 221 is connected to the first side surface 203
  • the first end surface 221 and the first bottom surface 222 are stepped along the image side to the object side, and the first end surface 221 and the first connection surface 223 are disposed on the first engaging portion 204.
  • the second object side surface 301 includes a second bottom surface 321, a second connection surface 322, a second end surface 323, and a third connection surface 324 that are sequentially connected in the radial inward direction of the second lens 300.
  • the second bottom surface 321 and the second The side surfaces 303 are connected, and the second end surface 323 and the second bottom surface 321 are stepped along the direction from the object side to the image side.
  • the second connection surface 322, the second end surface 323, and the third connection surface 324 are disposed on the second engaging portion 304.
  • both the first side surface 203 and the second side surface 303 are in contact with the inner wall 111 to restrict the first lens 200 and the second lens 300 along the radial direction of the lens Direction of movement.
  • the first bottom surface 222 is in contact with the second end surface 323
  • the first connection surface 223 is in contact with the second connection surface 322
  • the first end surface 221 is in contact with the first support surface 410
  • the second bottom surface 321 is in contact with the second support surface 420 abuts to determine the relative position of the first lens 200 and the second lens 300.
  • the second lens 300 is in contact with the first lens 200 through the support portion 400. That is, the first end surface 221 does not need to directly contact the second bottom surface 321, but acts indirectly through the support portion 400 and the second bottom surface 321. In this way, the thickness of the edge of the first lens 200 or the second lens 300 can be reduced, which is beneficial to the molding of the first lens 200 and the second lens 300. Furthermore, by providing the support portion 400, assembly deformation occurs on the support portion 400, thereby avoiding deformation of the first lens 200 and the second lens 300 and affecting imaging quality. In addition, the engagement of the first lens 200 and the second lens 300 makes it easier to align the optical axes of the first lens 200 and the second lens 300, which can improve the assembly accuracy of the lens module 10, thereby improving the imaging quality of the lens module 10 .
  • a relatively thick supporting portion 400 can be selected to ensure the distance between adjacent lenses.
  • a relatively thin supporting portion 400 may be used. In this way, the problem of uneven thickness of the lens edge can be solved by the support portion 400.
  • first engaging portion 204 may also be closer to the optical axis than the second engaging portion 304.
  • the supporting portion 400 is provided around the first engaging portion 204.
  • the second engaging portion 304 is an annular protrusion, which can simplify the manufacturing process.
  • the second engaging portion 304 may also be a plurality of arc-shaped protrusions arranged at intervals, and the plurality of arc-shaped protrusions are arranged at intervals along the circumferential direction of the second lens 300.
  • the outer diameter of the second engaging portion 304 gradually decreases in the direction from the image side to the object side. That is, the second connection surface 322 is inclined with respect to the optical axis, and the distance between the second connection surface 322 and the optical axis gradually decreases in the direction from the image side to the object side.
  • the first connecting surface 223 abuts on the second connecting surface 322
  • the first connecting surface 223 is also inclined with respect to the optical axis, and the distance between the first connecting surface 223 and the optical axis gradually increases from the object side to the image side Increased to facilitate the engagement of the first engaging portion 204 and the second engaging portion 304 to facilitate assembly.
  • the inner diameter of the second engaging portion 304 gradually increases in the direction from the image side to the object side. That is, the third connection surface 324 is inclined with respect to the optical axis, and the distance between the third connection surface 324 and the optical axis gradually increases in the direction from the image side to the object side, so that the second lens 300 is at the position where the third connection surface 324 is located
  • the thickness of the lens gradually increases in the radial outward direction of the second lens 300, which facilitates the molding of the second lens 300.
  • the supporting portion 400 has an annular structure. Specifically, the supporting part 400 further includes an outer side surface 430 and an inner side surface 440 oppositely disposed, the outer side surface 430 and the inner side surface 440 are both connected to the first supporting surface 410 and the second supporting surface 420, and the outer side surface 430 abuts against the inner wall 111 .
  • the relative position of the support portion 400 and the lens barrel 100 can be accurately determined during installation, so that the support portion 400 is coaxially disposed with the first lens 200 and the second lens 300, so that the first lens 200 and the second lens 300 are stressed It is more uniform and prevents the first lens 200 and the second lens 300 from being deformed due to uneven force, which in turn affects the imaging quality of the lens module 10.
  • the inner side 440 is spaced apart from the second connection surface 322. That is, the inner diameter of the support portion 400 is larger than the outer diameter of the second engagement portion 304, so that the support portion 400 and the second lens 300 are assembled. Moreover, when the supporting portion 400 is deformed by force, the supporting portion 400 may expand toward the space between the inner side surface 440 and the second connecting surface 322, thereby preventing the first lens 200 and the second lens 300 from being deformed due to the deformation of the supporting portion 400 Moving in a direction parallel to the optical axis, thereby affecting the imaging quality of the lens module 10.
  • the inner diameter of the support portion 400 gradually increases in the direction from the object side to the image side. That is, the inner side surface 440 is inclined with respect to the optical axis, and the distance between the inner side surface 440 and the optical axis gradually increases in the direction from the object side to the image side, so that the support portion 400 is sleeved on the second engaging portion 304.
  • the outer diameter of the support portion 400 is larger than the outer diameter of the first lens 200.
  • the bearing area of the support portion 400 and the first lens 200 and the second lens 300 are increased, and the first lens 200 and the second lens 300 can be greatly reduced.
  • the second lens 300 is deformed by the force. In this way, the imaging quality of the lens module 10 can be improved.
  • the support portion 400 has a ring structure.
  • the support portion 400 may also be an arc-shaped structure, and a plurality of arc-shaped support portions 400 are spaced around the optical axis.
  • the first lens 200 includes a first optical portion 210 and a first connecting portion 220 disposed around the first optical portion 210.
  • the first connecting portion 220 is provided with a first engaging portion 204 .
  • the second lens 300 includes a second optical portion 310 and a second connecting portion 320 disposed around the second optical portion 310.
  • the second connecting portion 320 is provided with a second engaging portion 304.
  • the optical part is a part that plays an optical role in the lens, and the optical part can be set into a concave or convex shape according to specific needs, so as to diverge or condense light.
  • the connecting part is arranged around the optical part, and is mainly used for placing and supporting the optical part.
  • the first optical portion 210 includes a first light incident surface 211 and a first light exit surface 212 that are oppositely disposed
  • the first connection portion 220 includes a first end surface 221, a first connection surface 223, and a first bottom surface 222
  • the first The bottom surface 222 is connected to the first light emitting surface 212.
  • the first end surface 221, the first connecting surface 223, the first bottom surface 222 and the first light emitting surface 212 form a first image side surface 202.
  • the second optical portion 310 includes a second light incident surface 311 and a second light exit surface 312 that are oppositely disposed.
  • the second connection portion 320 includes a second bottom surface 321, a second connection surface 322, a second end surface 323, and a third connection surface 324.
  • the third connection surface 324 is connected to the second light incident surface 311.
  • the second bottom surface 321, the second connection surface 322, the second end surface 323, the third connection surface 324, and the second light incident surface 311 form the second object side surface 301
  • the light After the light enters the cavity 113, it can pass through the first light incident surface 211, the first light exit surface 212, the second light incident surface 311, and the second light exit surface 312 in sequence, and finally exit the cavity 113.
  • the adjacent lenses are connected through the connecting part, which can prevent the force generated by the adjacent lens at the abutment from affecting the optical part after the lens is assembled, causing the optical part to deform and affect the imaging quality.
  • the lens module 10 further includes a light shielding portion 500, which is disposed between the first bottom surface 222 and the second end surface 323, and can block stray light. Moreover, it is difficult to ensure that the thickness of all lenses is uniform when the lenses are molded.
  • a relatively thick light-shielding portion 500 can be selected to ensure the distance between the optical portions of adjacent lenses. Conversely, when the thickness of the lens is thick, a relatively thin light-shielding portion 500 may be used. In this way, the problem of uneven thickness of the lens edge can be solved by the light shielding portion 500.
  • the inner diameter of the light-shielding portion 500 is less than or equal to the outer diameter of the second optical portion 310 to ensure the effect of the light-shielding portion 500 on the second lens 300 to block stray light.
  • the lens module 10 including only two lenses as an example.
  • the lens module 10 may further include more lenses, and both adjacent lenses may be Connect in the above manner.

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

Abstract

一种镜头模组（10）及电子设备。镜头模组（10）包括镜筒（100）、透镜组及支撑部（400）。镜筒（100）的内部设有腔体（113）。透镜组包括沿光轴的延伸方向设置的第一透镜（200）及第二透镜（300），第一透镜（200）靠近第二透镜（300）的一侧设有第一卡合部（204），第二透镜（300）靠近第一透镜（200）的一侧设有第二卡合部（304），第一卡合部（204）与第二卡合部（304）卡合，且第一卡合部（204）相对第二卡合部（304）远离光轴，支撑部（400）包括相对设置的第一支撑面（410）及第二支撑面（420），第一支撑面（410）与第一透镜（200）抵接，第二支撑面（420）与第二透镜（300）抵接，且支撑部（400）环绕第二卡合部（304）设置。通过设置支撑部（400），第二透镜（300）通过支撑部（400）与第一透镜（200）抵接，可以减小第一透镜（200）或第二透镜（300）边缘的厚度，有利于第一透镜（200）及第二透镜（300）成型。

Description

镜头模组及电子设备 技术领域
本申请涉及光学成像技术领域，具体指镜头模组及电子设备。
 背景技术
随着科技的不断发展，便携式电子设备不断地朝着智能化及小型化的方向发展。除了数码相机外，便携式电子设备，例如平板电脑、手机等，也都配备了具有拍摄功能的镜头模组。镜头模组一般包括镜筒，以及收容于镜筒内的透镜组，透镜组包括多个透镜，多个透镜层叠设置。
 技术问题
然而，当相邻的透镜之间的距离较大时，为了将相邻的透镜组装在一起，透镜的边缘厚度需要增加，而透镜中间部分的厚度较薄，使得透镜成型困难。因此，有必要提供一种镜筒模组及包括该镜头模组的电子设备。
 技术解决方案
本申请的目的在于提供一种镜头模组及电子设备，以解决现有透镜成型困难的问题。
本申请提供了一种镜头模组，包括：镜筒，内部设有腔体；
透镜组，包括沿光轴的延伸方向设置的第一透镜及第二透镜，所述第一透镜靠近所述第二透镜的一侧设有第一卡合部，所述第二透镜靠近所述第一透镜的一侧设有第二卡合部，所述第一卡合部与所述第二卡合部卡合，且所述第一卡合部相对所述第二卡合部远离所述光轴；以及
支撑部，包括相对设置的第一支撑面及第二支撑面，所述第一支撑面与所述第一透镜抵接，所述第二支撑面与所述第二透镜抵接，且所述支撑部环绕所述第二卡合部设置。
作为一种改进，所述第二卡合部的外径沿所述第二透镜至所述第一透镜的方向逐渐减小。
作为一种改进，所述支撑部为环形结构。
作为一种改进，所述支撑部还包括相对设置的外侧面及内侧面，所述外侧面及所述内侧面均与所述第一支撑面及所述第二支撑面连接，所述外侧面与镜筒抵接。
作为一种改进，所述内侧面与所述第二卡合部间隔设置。
作为一种改进，所述第一透镜包括第一光学部及环绕所述第一光学部设置的第一连接部，所述第一连接部上设有所述第一卡合部，所述第二透镜包括第二光学部及环绕所述第二光学部设置的第二连接部，所述第二连接部上设有所述第二卡合部。
作为一种改进，所述镜头模组还包括遮光部，所述遮光部设置于所述第一卡合部与所述第二卡合部之间。
作为一种改进，所述第一透镜及所述第二透镜由物侧至像侧依次收容于所述腔体内。
作为一种改进，所述支撑部的外径大于所述第一透镜的外径。
另外，本申请还提供一种包括上述镜头模组的电子设备。
 有益效果
本申请的有益效果在于：通过设置支撑部，第二透镜通过支撑部与第一透镜抵接，可以减小第一透镜或第二透镜边缘的厚度，有利于第一透镜及第二透镜成型。而且，通过设置支撑部，使得组装变形发生在支撑部上，从而避免第一透镜及第二透镜形变而影响成像质量。此外，第一透镜与第二透镜卡合使得第一透镜与第二透镜的光轴比较容易对准，能够提高镜头模组的组装精度，从而提高镜头模组及电子设备的成像质量。
 附图说明
图1是本申请一实施例的镜头模组的剖视图；
图2是图1中A处的局部放大图；
图3是图1中第一透镜及第二透镜的剖视图。
 本发明的实施方式
下面结合附图和实施方式对本申请作进一步说明。
如图1所示，本申请的镜头模组10应用于电子设备上，镜头模组10包括镜筒100、透镜组及支撑部400。镜筒100包括相对设置的内壁111及外壁112，内壁111围合形成腔体113。透镜组包括由物侧至像侧依次收容于腔体113内的第一透镜200及第二透镜300。
可以理解地，对于镜头模组10而言，物侧指被拍摄物体所处的一侧，像侧为成像的一侧。光线由物侧射入至腔体113内，经过透镜组后从腔体113射出，在像侧成像。
具体地，镜筒100包括筒壁110及顶壁120，筒壁110围合形成腔体113，顶壁120上设有与腔体113连通的入光孔121，且顶壁120与透镜组抵接，以限制透镜组沿像侧至物侧的方向移动。此外，镜头模组10还包括压环600，压环600与筒壁110连接，并与透镜组抵接，以限制透镜组沿物侧至像侧的方向移动。
在本实施例中，一并参考图2及图3，第一透镜200包括第一物侧面201、第一像侧面202及第一侧面203。第一物侧面201与第一像侧面202相对设置，第一侧面203连接第一物侧面201与第一像侧面202，且第一像侧面202设有第一卡合部204，第一卡合部204为沿物侧至像侧方向延伸的凸起。第二透镜300包括第二物侧面301、第二像侧面302及第二侧面303，第二物侧面301与第二像侧面302相对设置，第二侧面303连接第二物侧面301与第二像侧面302，且第二物侧面301设有与第一卡合部204卡合的第二卡合部304，第二卡合部304为沿像侧至物侧方向延伸的凸起，且第二卡合部304相对第一卡合部204靠近光轴。支撑部400环绕第二卡合部304设置，且支撑部400包括相对设置的第一支撑面410及第二支撑面420，第一支撑面410与第一像侧面202抵接，第二支撑面420与第二物侧面301抵接。
具体地，第一像侧面202包括沿第一透镜200的径向向内方向顺次连接的第一端面221、第一连接面223及第一底面222，第一端面221与第一侧面203连接，且第一端面221与第一底面222沿像侧至物侧的方向阶梯设置，第一端面221与第一连接面223设置于第一卡合部204。第二物侧面301包括沿第二透镜300的径向向内方向顺次连接的第二底面321、第二连接面322、第二端面323及第三连接面324，第二底面321与第二侧面303连接，且第二端面323与第二底面321沿物侧至像侧的方向阶梯设置，第二连接面322、第二端面323及第三连接面324设置于第二卡合部304。
当第一透镜200及第二透镜300安装至镜筒100内时，第一侧面203及第二侧面303均与内壁111抵接，以限制第一透镜200及第二透镜300沿透镜的径向方向移动。同时，第一底面222与第二端面323抵接，第一连接面223与第二连接面322抵接，第一端面221与第一支撑面410抵接，第二底面321与第二支撑面420抵接，以确定第一透镜200与第二透镜300的相对位置。
通过设置支撑部400，第二透镜300通过支撑部400与第一透镜200抵接。即，第一端面221不需直接与第二底面321抵接，而是通过支撑部400与第二底面321间接作用。如此，可以减小第一透镜200或第二透镜300边缘的厚度，有利于第一透镜200及第二透镜300成型。而且，通过设置支撑部400，使得组装变形发生在支撑部400上，从而避免第一透镜200及第二透镜300形变而影响成像质量。此外，第一透镜200与第二透镜300卡合使得第一透镜200与第二透镜300的光轴比较容易对准，能够提高镜头模组10的组装精度，从而提高镜头模组10的成像质量。
值得一提的是，由于透镜成型时难以保证所有透镜的厚度一致。通过设置支撑部400，当透镜的厚度较薄时，可以选用相对较厚的支撑部400，以保证相邻透镜的距离。相反地，当透镜的厚度较厚时，可以选用相对较薄的支撑部400。这样，可以通过支撑部400解决透镜边缘厚度不均的问题。
应当注意的是，在其他实施例中，第一卡合部204也可以相对第二卡合部304靠近光轴。此时，支撑部400环绕第一卡合部204设置。
此外，在本实施例中，第二卡合部304为环形凸起，可以简化制造工艺。当然，在其他实施例中，第二卡合部304也可以为多个间隔设置的弧形凸起，多个弧形凸起沿第二透镜300的周向间隔设置。
进一步地，在本实施例中，第二卡合部304的外径沿像侧至物侧的方向逐渐减小。即，第二连接面322相对光轴倾斜设置，且第二连接面322与光轴的距离沿像侧至物侧的方向逐渐减小。相应地，由于第一连接面223与第二连接面322抵接，第一连接面223也相对光轴倾斜设置，且第一连接面223与光轴的距离沿物侧至像侧的方向逐渐增大，以便于将第一卡合部204与第二卡合部304卡合，方便装配。
此外，在本实施例中，第二卡合部304的内径沿像侧至物侧的方向逐渐增大。即，第三连接面324相对光轴倾斜设置，且第三连接面324与光轴的距离沿像侧至物侧的方向逐渐增大，使得第二透镜300在第三连接面324所处位置的厚度沿第二透镜300的径向向外方向逐渐增大，有利于第二透镜300成型。同时，还可以避免应力集中在第二卡合部304，以增强第二透镜300的机械性能。
在本实施例中，主要参考图2，支撑部400为环形结构。具体地，支撑部400还包括相对设置的外侧面430及内侧面440，外侧面430及内侧面440均与第一支撑面410及第二支撑面420连接，且外侧面430与内壁111抵接。这样，可以在安装时准确确定支撑部400与镜筒100的相对位置，使得支撑部400与第一透镜200及第二透镜300同轴设置，从而使得第一透镜200及第二透镜300受力更加均匀，防止第一透镜200及第二透镜300由于受力不均而产生形变，进而影响镜头模组10的成像质量。
进一步地，在本实施例中，内侧面440与第二连接面322间隔设置。即，支撑部400的内径大于第二卡合部304的外径，以便于将支撑部400与第二透镜300装配。而且，当支撑部400受力变形时，支撑部400可以向内侧面440与第二连接面322之间的空间进行扩张，从而防止第一透镜200及第二透镜300由于支撑部400发生形变而沿平行于光轴的方向移动，进而影响镜头模组10的成像质量。
此外，在本实施例中，支撑部400的内径沿物侧至像侧的方向逐渐增大。即，内侧面440相对光轴倾斜设置，且内侧面440与光轴的距离沿物侧至像侧的方向逐渐增大，以便于将支撑部400套设于第二卡合部304。
进一步地，在本实施例中，支撑部400的外径大于第一透镜200的外径。这样，相较于第一透镜200与第二透镜300直接抵接的方案，支撑部400与第一透镜200和第二透镜300的受力面积均增大，可以大大减小第一透镜200和第二透镜300因受力产生的变形。如此，可以提高镜头模组10的成像质量。
应当注意的是，在本实施例中，支撑部400为环形结构。在其他实施例中，支撑部400也可以为弧形结构，多个弧形支撑部400环绕光轴间隔设置。
在本实施例中，主要参考图3，第一透镜200包括第一光学部210及环绕第一光学部210设置的第一连接部220，第一连接部220上设有第一卡合部204。第二透镜300包括第二光学部310及环绕第二光学部310设置的第二连接部320，第二连接部320上设有第二卡合部304。
可以理解的是，光学部为透镜中起光学作用的部分，光学部可根据具体需要设置为凹或凸的形状，从而对光线进行发散或汇聚。连接部环绕光学部设置，主要作用为放置及支撑光学部。
具体地，第一光学部210包括相对设置的第一入光面211及第一出光面212，第一连接部220包括第一端面221、第一连接面223及第一底面222，且第一底面222与第一出光面212连接，第一端面221、第一连接面223、第一底面222及第一出光面212形成第一像侧面202。第二光学部310包括相对设置的第二入光面311及第二出光面312，第二连接部320包括第二底面321、第二连接面322、第二端面323及第三连接面324，且第三连接面324与第二入光面311连接，第二底面321、第二连接面322、第二端面323、第三连接面324及第二入光面311形成第二物侧面301。
光线射入腔体113后，能够依次经过第一入光面211、第一出光面212、第二入光面311及第二出光面312，最后从腔体113射出。通过设置光学部及连接部，相邻的透镜通过连接部连接，可以避免透镜装配后，相邻的透镜在抵接处产生的作用力影响光学部，使得光学部产生形变而影响成像质量。
值得一提的是，在本实施例中，镜头模组10还包括遮光部500，遮光部500设置于第一底面222与第二端面323之间，可以起到阻挡杂散光的作用。而且，由于透镜成型时难以保证所有透镜的厚度一致。通过设置遮光部500，当透镜的厚度较薄时，可以选用相对较厚的遮光部500，以保证相邻透镜的光学部之间的距离。相反地，当透镜的厚度较厚时，可以选用相对较薄的遮光部500。这样，可以通过遮光部500解决透镜边缘厚度不均的问题。
此外，在本实施例中，遮光部500的内径小于或等于第二光学部310的外径，以保证遮光部500对第二透镜300阻挡杂散光的效果。
应当注意的是，上述实施方式以仅包括两个透镜的镜头模组10为例进行说明，在其他实施例中，镜头模组10还可以包括更多个透镜，相邻的两个透镜均可以采用上述方式连接。
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。

Claims (10)

  1. 一种镜头模组，其特征在于，包括：
    镜筒，内部设有腔体；
    透镜组，包括沿光轴的延伸方向设置的第一透镜及第二透镜，所述第一透镜靠近所述第二透镜的一侧设有第一卡合部，所述第二透镜靠近所述第一透镜的一侧设有第二卡合部，所述第一卡合部与所述第二卡合部卡合，且所述第一卡合部相对所述第二卡合部远离所述光轴；以及
    支撑部，包括相对设置的第一支撑面及第二支撑面，所述第一支撑面与所述第一透镜抵接，所述第二支撑面与所述第二透镜抵接，且所述支撑部环绕所述第二卡合部设置。
  2. 根据权利要求1所述的镜头模组，其特征在于，所述第二卡合部的外径沿所述第二透镜至所述第一透镜的方向逐渐减小。
  3. 根据权利要求1所述的镜头模组，其特征在于，所述支撑部为环形结构。
  4. 根据权利要求1所述的镜头模组，其特征在于，所述支撑部还包括相对设置的外侧面及内侧面，所述外侧面及所述内侧面均与所述第一支撑面及所述第二支撑面连接，所述外侧面与所述镜筒抵接。
  5. 根据权利要求4所述的镜头模组，其特征在于，所述内侧面与所述第二卡合部间隔设置。
  6. 根据权利要求1所述的镜头模组，其特征在于，所述第一透镜包括第一光学部及环绕所述第一光学部设置的第一连接部，所述第一连接部上设有所述第一卡合部，所述第二透镜包括第二光学部及环绕所述第二光学部设置的第二连接部，所述第二连接部上设有所述第二卡合部。
  7. 根据权利要求1所述的镜头模组，其特征在于，所述镜头模组还包括遮光部，所述遮光部设置于所述第一透镜与所述第二透镜之间。
  8. 根据权利要求1-7任意一项所述的镜头模组，其特征在于，所述第一透镜及所述第二透镜由物侧至像侧依次收容于所述腔体内。
  9. 根据权利要求8所述的镜头模组，其特征在于，所述支撑部的外径大于所述第一透镜的外径。
  10. 一种电子设备，其特征在于，包括如权利要求1-9任意一项所述的镜头模组。
PCT/CN2019/113829 2018-12-31 2019-10-29 镜头模组及电子设备 Ceased WO2020140588A1 (zh)

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