WO2020243853A1 - 一种镜头透镜模组 - Google Patents

一种镜头透镜模组 Download PDF

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Publication number
WO2020243853A1
WO2020243853A1 PCT/CN2019/089716 CN2019089716W WO2020243853A1 WO 2020243853 A1 WO2020243853 A1 WO 2020243853A1 CN 2019089716 W CN2019089716 W CN 2019089716W WO 2020243853 A1 WO2020243853 A1 WO 2020243853A1
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WO
WIPO (PCT)
Prior art keywords
lens
fixing frame
lens assembly
coil
connecting portion
Prior art date
Application number
PCT/CN2019/089716
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English (en)
French (fr)
Inventor
徐同明
赵后伟
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/CN2019/089716 priority Critical patent/WO2020243853A1/zh
Priority to JP2020543360A priority patent/JP7064819B2/ja
Priority to CN201910479392.7A priority patent/CN110261985A/zh
Priority to US16/984,168 priority patent/US11372195B2/en
Publication of WO2020243853A1 publication Critical patent/WO2020243853A1/zh

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    • 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
    • G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
    • G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
    • 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
    • G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic 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
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
    • 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
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G03B13/36—Autofocus systems
    • 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
    • G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
    • 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
    • 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
    • G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism

Definitions

  • the present invention relates to the field of optical imaging technology, and in particular to a lens module used in mobile electronic devices such as mobile phones.
  • optical lenses have been widely used in various electronic products.
  • light enters directly from the object side, passes through the lens assembly in a straight line along the optical axis to the image side, and images the object through the lens assembly.
  • all the lens components in the prior art have an auto-focusing function.
  • the focus driving component can drive the lens component to move relative to the fixed frame along the optical axis direction to capture a clear image.
  • the lens assembly will move slightly in a plane perpendicular to the optical axis, which seriously affects the sharpness of the image.
  • the objective of the present invention is to provide a lens module capable of simultaneously performing focusing and anti-shake.
  • the present invention provides a lens lens module, which includes a fixing frame, a lens assembly arranged in the fixing frame, and connected between the fixing frame and the lens assembly to connect the lens assembly
  • An elastic suspension assembly suspended in the fixing frame, a first magnet arranged on the lens assembly, arranged on the fixing frame and used to cooperate with the first magnet to drive the lens assembly along the light
  • a focus coil that moves in the first direction of the shaft, a second magnet arranged on the lens assembly, and an anti-shake coil arranged on the fixing frame and matched with the second magnet, the anti-shake coil drives
  • the lens assembly moves along a second direction perpendicular to the optical axis to compensate for the shaking of the lens assembly in a direction perpendicular to the optical axis.
  • the elastic suspension assembly includes a plurality of suspension members arranged at intervals, and each of the suspension members includes a top end and a bottom end opposed to each other, and a deformable portion connected between the top end and the bottom end.
  • the deformed portion extends perpendicular to the first direction and the second direction, the top end is connected to the fixing frame, the bottom end is connected to the lens assembly, and the lens assembly is connected to the deformable
  • the lens assembly includes an object side wall and an image side wall opposing along the optical axis, a top wall and a bottom wall opposingly disposed along the extension direction of the deformation portion, and the lens assembly from the top wall toward the An extension wall extending from the bottom wall, the extension wall being connected between the object side wall and the image side wall, and the fixing frame corresponding to the object side wall is provided with a light through hole.
  • the elastic suspension assembly further includes a plurality of first fixing blocks respectively arranged at the top end and embedded in the fixing frame, and a plurality of first fixing blocks respectively arranged at the bottom end and embedded in
  • the fixing frame is provided with a receiving portion corresponding to the top end, and the top end is received in the receiving portion and fixed by the first fixing block.
  • the suspension is provided with four, and the end of the lens assembly away from the top end toward the object side and the image side of the lens assembly is protruded with two lugs, and the suspension The bottom end of the piece is embedded in the lug and fixed by the second fixing block.
  • the number of the first magnet, the focus coil, the second magnet, and the anti-shake coil are all two, and the two first magnets are respectively mounted on the two opposite extension walls of the lens assembly
  • the two second magnets are both installed on the top wall
  • the two focus coils are respectively arranged on both sides of the fixing frame and are arranged opposite to the two first magnets one by one.
  • the shaking coils are all arranged on the fixing frame and arranged opposite to the two second magnets one by one.
  • the lens lens module further includes a first magnetic conductive plate, a second magnetic conductive plate, and a circuit board arranged on the fixing frame, and the focus coil and the anti-shake coil are all connected to the The circuit board is connected, and the first magnetic conductive plate is arranged on the side of the focusing coil away from the first magnet and forms a magnetic circuit with the first magnet;
  • the second magnetic conductive plate is arranged on a side of the anti-shake coil away from the second magnetic steel and forms a magnetic circuit with the second magnetic steel.
  • the first magnetic conductive plate is arranged between the focus coil and the circuit board or on the side of the circuit board away from the focus coil;
  • the second magnetic conductive plate is arranged between the anti-shake coil and the circuit board or on the side of the circuit board away from the anti-shake coil.
  • the circuit board includes a first connecting portion embedded in the fixing frame and a second connecting portion bent and extending from the first connecting portion, the first connecting portion and the extension
  • the wall is opposite and electrically connected to the focus coil
  • the second connecting portion is opposite to the top wall and electrically connected to the anti-shake coil.
  • circuit boards there are two circuit boards, and the two circuit boards are respectively located on opposite sides of the lens assembly.
  • At least one of the circuit boards further includes an extension board extending from a side of the first connection portion away from the second connection portion to the outside of the fixing frame, and the extension board is electrically connected to an external circuit .
  • the first connecting portion and/or the second connecting portion are at least partially exposed to the fixing frame
  • the lens lens module further includes a protective cover mounted on the fixing frame. And cover the first connecting portion and/or the second connecting portion.
  • an elastic suspension assembly is arranged between the fixing frame and the lens assembly to suspend the lens assembly in the fixing frame, and the focus coil and the first magnet are matched to drive the lens assembly along the optical axis.
  • Directional movement to realize the automatic focus of the lens assembly in the fixed frame in the case of jitter, the lens assembly will move slightly in the plane perpendicular to the optical axis, and the lens assembly is driven by the cooperation between the anti-shake coil and the second magnet Move along the vertical optical axis to realize the anti-shake compensation of the lens assembly in the fixed frame, so as to obtain a clear imaging effect.
  • the lens assembly shares the elastic suspension assembly to support and hang in the fixed frame in the focusing movement direction and the anti-shake compensation movement direction, which can save internal space.
  • FIG. 1 is a perspective view of a lens lens module according to an embodiment of the present invention.
  • Figure 2 is the first exploded schematic diagram of Figure 1.
  • Figure 3 is the second exploded schematic diagram of Figure 1.
  • FIG. 4 is a perspective view of the lens module with the protective cover, the circuit board and the first magnetic conductive plate removed.
  • Figure 5 is an exploded schematic diagram of Figure 4.
  • FIG. 6 is a top view of a lens lens module according to an embodiment of the present invention.
  • Fig. 7 is a schematic cross-sectional view at A-A in Fig. 6.
  • Fig. 8 is a schematic cross-sectional view at B-B in Fig. 6.
  • Fig. 9 is a perspective view of a lens assembly according to an embodiment of the present invention.
  • Lens lens module 10. Fixing frame; 11. Receptacle; 12. Mounting hole; 13. Light hole; 14. First perforation; 15. Second perforation; 20. Circuit board; 21. 22, second connection, 23, extension plate, 30, lens assembly, 31, lens barrel, 311, object side wall, 312, image side wall, 313, top wall, 314, bottom wall, 315 316, lugs, 317, positioning hole, 318, first accommodating groove, 319, second accommodating groove, 32, lens, 40, elastic suspension assembly, 41, suspension member, 411, top end, 412 , Bottom end; 413, deformation part; 42, first fixed block; 43, second fixed block; 50, first magnet; 60, focus coil; 70, second magnet; 80, anti-shake coil; 90, The first magnetic conductive plate; 100, the second magnetic conductive plate; 200, the imaging sensor; 300, the protective cover.
  • an element when an element is referred to as being “fixed on” or “disposed on” another element, the element may be directly on the other element or there may be a centering element at the same time.
  • an element When an element is referred to as being “connected” to another element, it can be directly connected to the other element or an intermediate element may also exist.
  • an embodiment of the present invention provides a lens lens module 1.
  • the lens lens module 1 includes a fixing frame 10, a circuit board 20, a lens assembly 30, an elastic suspension assembly 40, a first magnet 50, and a focus
  • the coil 60, the second magnetic steel 70, and the anti-shake coil 80 wherein the circuit board 20 is mounted on the fixing frame 10, the focus coil 60 and the anti-shake coil 80 are electrically connected to the circuit board 20, and the lens assembly 30 is fixed
  • the elastic suspension assembly 40 is connected between the fixing frame 10 and the lens assembly 30 to suspend the lens assembly 30 in the fixing frame 10, so that the lens assembly 30 is suspended in the fixing frame 10, and the first magnet 50 is provided
  • the focus coil 60 is arranged on the fixing frame 10 and is used to cooperate with the first magnet 50 to drive the lens assembly 30 to move along the first direction of the optical axis, that is, to move along the length of the fixing frame 10 to achieve
  • the lens assembly 30 is automatically focused in the fixing frame 10; the second magnet 70 is arranged on the lens assembly 30, the anti-shake coil 80
  • the lens assembly 30 may move slightly in a plane perpendicular to the optical axis.
  • the anti-shake coil 80 and the second magnet 70 cooperate to drive the lens assembly 30 to make the opposite displacement. , To compensate for the amount of jitter, so as to obtain high-definition images.
  • the lens assembly 30 includes an object side wall 311, an image side wall 312, a top wall 313, a bottom wall 314, and an extension wall 315.
  • the object side wall 311 and the image side wall 312 are opposite along the optical axis
  • the top wall 313 and the bottom wall 314 are arranged opposite to each other along the height direction of the fixing frame 10.
  • the extension wall 315 extends from the top wall 313 to the bottom wall 314, and the extension wall 315 is connected between the object side wall 311 and the image side wall 312, preferably Ground, the number of the first magnet 50, the focus coil 60, the second magnet 70 and the anti-shake coil 80 are all two, and the two first magnets 50 are respectively mounted on the extension walls 315 opposite to the lens assembly 30.
  • the two focus coils 60 are respectively arranged on both sides of the fixed frame 10 and are arranged opposite to the two first magnets 50 one by one.
  • the focus coil 60 cooperates with the first magnet 50 to facilitate driving the lens assembly 30 to move along the first direction of the optical axis Time is more stable.
  • the two second magnets 70 are both installed on the top wall 313 of the lens assembly 30.
  • the two anti-shake coils 80 are both installed on the fixing frame 10 and are arranged opposite to the two second magnets 70 one by one.
  • the anti-shake coil 80 and the first The two magnets 70 cooperate to make the driving lens assembly 30 move more smoothly in the second direction perpendicular to the optical axis.
  • the elastic suspension assembly 40 includes a plurality of suspension members 41 arranged at intervals, and each suspension member 41 includes a top end 411, a bottom end 412, and a deformed portion 413.
  • each suspension member 41 includes a top end 411, a bottom end 412, and a deformed portion 413.
  • the top end 411 and the bottom end 412 are opposed to each other, the deformed portion 413 is connected between the top end 411 and the bottom end 412, the deformed portion 413 extends perpendicular to the first direction and the second direction, the top end 411 is connected to the fixing frame 10, and the bottom end 412 Connected to the lens assembly 30 to hang the lens assembly 30 in the fixing frame 10, and the lens assembly 30 and the deformable part 413 are spaced apart.
  • the deformable part 413 in this embodiment is made of metal material, using alloy material, preferably copper alloy Specifically, it is beryllium copper. It should be noted that when the lens assembly 30 is suspended, it can only move in a horizontal direction, and does not move in a vertical direction.
  • the elastic suspension assembly 40 further includes a plurality of first fixing blocks 42 arranged at the top end 411 and embedded in the fixing frame 10 and a plurality of second fixing blocks arranged at the bottom end 412 and embedded in the lens assembly 30.
  • the fixed block 43 there are four suspension parts 41.
  • the lens assembly 30 includes a lens barrel 31 and a number of lenses 32 located in the lens barrel 31.
  • the lens barrel 31 has a square structure, and each suspension piece 41 corresponds to a first A fixing block 42 and a second fixing block 43.
  • the end of the lens assembly 30 facing away from the top 411 toward the object side and the image side of the lens assembly 30 is protruding with two lugs 316, and the fixing frame 10 is provided with a corresponding top 411
  • the lugs 316 are provided with corresponding positioning holes 317, and each suspension
  • the bottom ends 412 of the members 41 are respectively embedded in the positioning holes 317 on the lugs 316 in a one-to-one correspondence and are fixed by the corresponding second fixing blocks 43, so that the suspension member 41 is fixed between the lens assembly 30 and the fixing frame 10 between.
  • the number and distribution of the suspension members 41 are not limited to this.
  • the lens lens module 1 further includes a first magnetic conductive plate 90 and a second magnetic conductive plate 100.
  • the first magnetic conductive plate 90 is mounted on the circuit board 20, and the first magnetic conductive plate 90 is mounted on The focusing coil 60 is away from the side of the first magnet 50.
  • the first magnetic conductive plate 90 is arranged between the focusing coil 60 and the circuit board 20 or on the side of the circuit board 20 away from the focusing coil 60 so as to communicate with the A magnetic steel 50 forms a magnetic circuit to enhance the magnetic strength of the first magnetic steel 50.
  • the first magnetic conductive plate 90 is disposed on the side of the circuit board 20 away from the focus coil 60.
  • the second magnetic conductive plate 100 is also installed on the circuit board 20.
  • the second magnetic conductive plate 100 is arranged on the side of the anti-shake coil 80 away from the second magnetic steel 70.
  • the second magnetic conductive plate 100 is arranged on the anti-shake coil.
  • the first The two magnetic conductive plates 100 are arranged between the anti-shake coil 80 and the circuit board 20.
  • the number of circuit boards 20 is two, the two circuit boards 20 are electrically connected, and the two circuit boards 20 are respectively located on opposite sides of the lens assembly 30, one focusing coil 60, one first magnetic conductor The board 90, an anti-shake coil 80 and a second magnetic plate 100 are all connected to one of the circuit boards 20; the other focus coil 60, the other first magnetic plate 90, the other anti-shake coil 80 and the other The two magnetic conductive plates 100 are both connected to another circuit board 20 to realize the fixation of the above-mentioned driving coils and the magnetic conductive plates.
  • the circuit board 20 includes a first connecting portion 21 embedded in the fixing frame 10 and a second connecting portion 22 bent and extending from the first connecting portion 21.
  • the first connecting portion 21 is opposed to the extension wall 315 and is in focus
  • the coil 60 is electrically connected
  • the second connecting portion 22 is opposite to the top wall 313 and is electrically connected to the anti-vibration coil 80.
  • the at least one circuit board 20 further includes an extension plate 23 extending from a side of the first connection portion 21 away from the second connection portion 22 to the outside of the fixing frame 10, and the extension board 23 is electrically connected to an external circuit.
  • the fixing frame 10 has a mounting hole 12 for the lens assembly 30 to pass through and fixing, a light-passing hole 13 opened on the counterpart side wall 311 and communicating with the mounting hole 12, and
  • the hole 12 communicates with the first perforation 14 on the side of the fixing frame 10 for the focus coil 60 to pass through, and the second perforation 15 that communicates with the mounting hole 12 and is located above the fixing frame 10 for the anti-shake coil 80 to pass through,
  • the lens barrel 31 is provided with a first accommodating groove 318 for fixing the first magnet 50 and a second accommodating groove 319 for fixing the second magnet 70.
  • the focus coil 60 in this embodiment is fixed to the circuit On the board 20 and through the first perforation 14 and the first magnet 50 in the first accommodating groove 318, a force for driving the lens assembly 30 to move along the optical axis is generated, and the anti-shake coil 80 is fixed to the circuit board 20 and through the second perforation 15 and the second magnet 70 in the second accommodating groove 319 to generate a force for driving the lens assembly 30 to move in the direction perpendicular to the optical axis, the first connecting portion 21 and/or The second connecting portion 22 is at least partially exposed outside the fixing frame 10.
  • the lens lens module 1 further includes an imaging sensor 200 and a plurality of protective covers 300.
  • the imaging sensor 200 is detachably mounted on the end of the fixing frame 10 close to the image side of the lens assembly 30, and the light reaches the imaging sensor through the lens assembly 30 200 and imaging on the imaging sensor 200.
  • the protective cover 300 is installed on the fixing frame 10 and covers the first connecting portion 21 and/or the second connecting portion 22 on the circuit board 20 to prevent external light from directly entering the lens assembly 30.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Adjustment Of Camera Lenses (AREA)
  • Lens Barrels (AREA)
  • Studio Devices (AREA)

Abstract

一种镜头透镜模组，包括固定架（10）、设于固定架（10）内的镜头组件（20）、连接于固定架（10）与镜头组件（20）之间以将镜头组件（20）悬挂于固定架（10）内的弹性悬挂组件（40）。第一磁钢（50）设于镜头组件（20）上，对焦线圈（60）设于固定架（10）上并用于与第一磁钢（50）配合以驱动镜头组件（20）沿光轴方向移动实现自动对焦。第二磁钢（70）设于镜头组件（20）上，防抖线圈（80）设于固定架（10）上并与第二磁钢（70）配合以驱动镜头组件（20）沿垂直光轴方向移动以补偿镜头组件（20）在垂直于光轴方向的抖动。

Description

一种镜头透镜模组 技术领域
本发明涉及光学成像技术领域，尤其涉及一种应用于手机等移动电子设备内的镜头透镜模组。
背景技术
近年来，随着成像技术的发展及具有成像功能的电子产品的兴起，光学镜头被广泛地应用在各种电子产品中。一般光线都是直接从物侧射入，沿着光轴直线通过镜头组件到达像侧，通过镜头组件来对物体进行成像。但是，现有技术中镜头组件都具有自动对焦功能，在拍摄时，对焦驱动组件可以驱动镜头组件相对固定架沿光轴方向运动以拍摄清晰图像。然而，在发生抖动的拍摄情况下，镜头组件会在垂直于光轴的平面内发生微小移动，从而严重影响了图像的拍摄清晰度。
发明概述
技术问题
因此，有必要提供一种镜头透镜模组来解决现有镜头组件在抖动情况下拍摄图像清晰度差的问题。
问题的解决方案
技术解决方案
本发明的目的在于提供一种能同时进行对焦和防抖的镜头透镜模组。
本发明的技术方案如下：
为实现上述目的，本发明提供了一种镜头透镜模组，包括固定架、设于所述固定架内的镜头组件、连接于所述固定架与所述镜头组件之间以将所述镜头组件悬挂于所述固定架内的弹性悬挂组件、设于所述镜头组件上的第一磁钢、设于所述固定架上并用于与所述第一磁钢配合以驱动所述镜头组件沿光轴的第一方向移动的对焦线圈、设于所述镜头组件上的第二磁钢以及设于所述固定架上并与所述第二磁钢配合的防抖线圈，所述防抖线圈驱动所述镜头组件沿垂直光轴 的第二方向移动以补偿所述镜头组件在垂直于所述光轴方向的抖动。
作为一种改进，所述弹性悬挂组件包括若干个间隔设置的悬挂件，每个所述悬挂件包括相对设置的顶端与底端、以及连接在所述顶端与所述底端之间的形变部，所述形变部沿垂直于所述第一方向及所述第二方向延伸，所述顶端与所述固定架连接，所述底端与所述镜头组件连接，所述镜头组件与所述形变部间隔设置，所述镜头组件包括沿所述光轴相对的物侧壁与像侧壁、沿所述形变部的延伸方向相对设置的顶壁与底壁、以及自所述顶壁朝所述底壁延伸的延伸壁，所述延伸壁连接在所述物侧壁与所述像侧壁之间，所述固定架对应所述物侧壁开设有通光孔。
作为一种改进，所述弹性悬挂组件还包括若干个分别设于所述顶端并均嵌设于所述固定架内的第一固定块和若干个分别设于所述底端并均嵌设于所述镜头组件内的第二固定块，所述固定架对应所述顶端开设有收容部，所述顶端收容于所述收容部内并由所述第一固定块固定。
作为一种改进，所述悬挂件设有四个，所述镜头组件远离所述顶端的一侧朝向所述镜头组件物侧和像侧的端部都凸设有两个凸耳，所述悬挂件的底端嵌设于所述凸耳内并由所述第二固定块固定。
作为一种改进，所述第一磁钢、对焦线圈、第二磁钢以及防抖线圈的数量都为两个，两所述第一磁钢分别安装于所述镜头组件两相背的延伸壁上，两所述第二磁钢均安装于所述顶壁，两所述对焦线圈分别设于所述固定架两侧并与两所述第一磁钢一一间隔相对设置，两所述防抖线圈均设于所述固定架上并与两所述第二磁钢一一间隔相对设置。
作为一种改进，所述镜头透镜模组还包括第一导磁板、第二导磁板和设于所述固定架上的电路板，所述对焦线圈和所述防抖线圈均与所述电路板连接，所述第一导磁板设于所述对焦线圈远离所述第一磁钢的一侧并与所述第一磁钢组成磁回路；
所述第二导磁板设于所述防抖线圈之远离所述第二磁钢的一侧并与所述第二磁钢组成磁回路。
作为一种改进，所述第一导磁板设于所述对焦线圈与所述电路板之间或者设于 所述电路板之远离所述对焦线圈的一侧；
所述第二导磁板设于所述防抖线圈与所述电路板之间或者设于所述电路板之远离所述防抖线圈的一侧。
作为一种改进，所述电路板包括嵌设于所述固定架内的第一连接部以及自所述第一连接部弯折延伸的第二连接部，所述第一连接部与所述延伸壁相对并与所述对焦线圈电连接，所述第二连接部与所述顶壁相对并与所述防抖线圈电连接。
作为一种改进，所述电路板设有两个，且两个所述电路板分别位于所述镜头组件的相对两侧。
作为一种改进，至少一个所述电路板还包括自所述第一连接部远离所述第二连接部的一侧延伸至所述固定架外的延伸板，所述延伸板与外部电路电连接。
作为一种改进，所述第一连接部和/或所述第二连接部至少部分露设于所述固定架，所述镜头透镜模组还包括防护盖，所述防护盖安装于所述固定架上且覆盖所述第一连接部和/或所述第二连接部。
发明的有益效果
有益效果
本发明的有益效果是：本发明中通过在固定架与镜头组件之间设置弹性悬挂组件以将镜头组件悬挂于固定架内，通过对焦线圈和第一磁钢间配合以驱动镜头组件沿光轴方向移动，实现镜头组件在固定架内自动对焦；在发生抖动的情况下，镜头组件会在垂直于光轴的平面内发生微小移动，通过防抖线圈和第二磁钢间配合以驱动镜头组件沿垂直光轴方向移动，实现镜头组件在固定架内防抖补偿，以便于得到清晰的成像效果。镜头组件在对焦移动方向与防抖补偿移动方向共用弹性悬挂组件支撑悬挂于固定架内，可以节约内部空间。
对附图的简要说明
附图说明
图1为本发明实施例镜头透镜模组的立体图。
图2为图1的爆炸示意图一。
图3为图1的爆炸示意图二。
图4为镜头透镜模组去掉防护盖、电路板和第一导磁板后的立体图。
图5为图4的爆炸示意图。
图6为本发明实施例镜头透镜模组的俯视图。
图7为图6中A-A处的剖面示意图。
图8为图6中B-B处的剖面示意图。
图9为本发明实施例镜头组件的立体图。
图中：1、镜头透镜模组；10、固定架；11、收容部；12、安装孔；13、通光孔；14、第一穿孔；15、第二穿孔；20、电路板；21、第一连接部；22、第二连接部；23、延伸板；30、镜头组件；31、镜筒；311、物侧壁；312、像侧壁；313、顶壁；314、底壁；315、延伸壁；316、凸耳；317、定位孔；318、第一容置槽；319、第二容置槽；32、镜片；40、弹性悬挂组件；41、悬挂件；411、顶端；412、底端；413、形变部；42、第一固定块；43、第二固定块；50、第一磁钢；60、对焦线圈；70、第二磁钢；80、防抖线圈；90、第一导磁板；100、第二导磁板；200、成像传感器；300、防护盖。
发明实施例
具体实施方式
下面结合附图和实施方式对本发明作进一步说明。
需要说明的是，本实用新型实施例中所有方向性指示(诸如上、下、内、外、顶部、底部……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
还需要说明的是，当元件被称为“固定于”或“设置于”另一个元件上时，该元件可以直接在另一个元件上或者可能同时存在居中元件。当一个元件被称为“连接”另一个元件，它可以是直接连接另一个元件或者可能同时存在居中元件。
请参阅图1-9，本发明实施例提供一种镜头透镜模组1，镜头透镜模组1包括固定架10、电路板20、镜头组件30、弹性悬挂组件40、第一磁钢50、对焦线圈60、第二磁钢70以及防抖线圈80，其中，电路板20安装于固定架10上，对焦线圈6 0和防抖线圈80都与电路板20电性连接，镜头组件30设于固定架10内，弹性悬挂组件40连接于固定架10与镜头组件30之间以将镜头组件30悬挂于固定架10内，使镜头组件30在固定架10内处于悬空状态，第一磁钢50设于镜头组件30上，对焦线圈60设于固定架10上并用于与第一磁钢50配合以驱动镜头组件30沿光轴的第一方向移动，即为沿固定架10的长度方向移动，实现镜头组件30在固定架10内自动对焦；第二磁钢70设于镜头组件30上，防抖线圈80设于固定架10上并与第二磁钢70配合，防抖线圈80驱动镜头组件30沿垂直光轴的第二方向移动，即为沿固定架10的宽度方向移动，以补偿镜头组件30在垂直于光轴方向的抖动。具体应用中，在发生抖动的拍摄情况下，镜头组件30可能在垂直于光轴的平面内发生微小移动，此时，防抖线圈80与第二磁钢70配合驱动镜头组件30做相反的位移，以补偿抖动量，从而获取高清图像。
请参阅图4至图5和图9，镜头组件30包括物侧壁311、像侧壁312、顶壁313、底壁314以及延伸壁315，物侧壁311与像侧壁312沿光轴相对设置，顶壁313与底壁314沿固定架10的高度方向相对设置，延伸壁315自顶壁313朝底壁314延伸，延伸壁315连接在物侧壁311与像侧壁312之间，优选地，第一磁钢50、对焦线圈60、第二磁钢70以及防抖线圈80的数量都为两个，两第一磁钢50分别安装于镜头组件30两相背的延伸壁315上，两对焦线圈60分别设于固定架10两侧并与两第一磁钢50一一间隔相对设置，对焦线圈60与第一磁钢50配合以便于驱动镜头组件30沿光轴的第一方向移动时更加平稳。
两第二磁钢70均安装于镜头组件30的顶壁313上，两防抖线圈80均设于固定架10上并与两第二磁钢70一一间隔相对设置，防抖线圈80与第二磁钢70配合以便于驱动镜头组件30沿垂直光轴的第二方向移动时更加平稳。
请进一步参阅图2、图3、图5至图7，本实施例中，弹性悬挂组件40包括若干个间隔设置的悬挂件41，每个悬挂件41包括顶端411、底端412以及形变部413，顶端411与底端412相对设置，形变部413连接在顶端411与底端412之间，形变部413沿垂直于第一方向及第二方向延伸，顶端411与固定架10连接，底端412与镜头组件30连接，以将镜头组件30悬挂于固定架10内，且镜头组件30与形变部413间隔设置，本实施例中的形变部413为金属材质制作，采用合金材质，优选为铜合 金，具体为铍铜，需要说明的是，该镜头组件30在被悬挂时，只能进行水平方向的移动，而不发生竖直方向的移动。
优选地，弹性悬挂组件40还包括若干个设于顶端411并均嵌设于固定架10内的第一固定块42和若干个设于底端412并均嵌设于镜头组件30内的第二固定块43，本实施例中悬挂件41设有四个，镜头组件30包括镜筒31及位于镜筒31内的若干镜片32，镜筒31为方形结构，每个悬挂件41对应一个第一固定块42和一个第二固定块43，镜头组件30远离顶端411的一侧朝向镜头组件30物侧和像侧的端部都凸设有两个凸耳316，固定架10对应顶端411开设有若干个收容部11，各悬挂件41的顶端411分别一一收容于各收容部11内并由相对应的第一固定块42固定，凸耳316上设有相对应的定位孔317，各悬挂件41的底端412分别一一对应嵌设于各凸耳316上的定位孔317内并由相对应的第二固定块43固定，从而使悬挂件41固定于镜头组件30和固定架10之间。当然了，具体应用中，悬挂件41的数量和分布方式不限于此。
请参阅图6至图8，镜头透镜模组1还包括第一导磁板90和第二导磁板100，第一导磁板90安装于电路板20上，第一导磁板90设于对焦线圈60远离第一磁钢50的一侧，优选地，第一导磁板90设于对焦线圈60与电路板20之间或者设于电路板20之远离对焦线圈60的一侧以与第一磁钢50组成磁回路，以增强第一磁钢50的磁力强度，本实施例中第一导磁板90设于电路板20之远离对焦线圈60的一侧。
第二导磁板100也安装于电路板20上，第二导磁板100设于防抖线圈80之远离第二磁钢70的一侧，优选地，第二导磁板100设于防抖线圈80与电路板20之间或者设于电路板20之远离防抖线圈80的一侧以与第二磁钢70组成磁回路，以增强第二磁钢70的磁力强度，本实施例中第二导磁板100设于防抖线圈80与电路板20之间。
本实施例中电路板20的数量为两个，两个电路板20之间电性连接，且两个电路板20分别位于镜头组件30的相对两侧，一个对焦线圈60、一个第一导磁板90、一个防抖线圈80和一个第二导磁板100均与其中一个电路板20连接；另一个对焦线圈60、另一个第一导磁板90、另一个防抖线圈80和另一个第二导磁板100均与另一电路板20连接，实现上述各驱动线圈和各导磁板的固定。
具体地，电路板20包括嵌设于固定架10内的第一连接部21以及自第一连接部21弯折延伸的第二连接部22，第一连接部21与延伸壁315相对并与对焦线圈60电连接，第二连接部22与顶壁313相对并与防抖线圈80电连接。优选地，至少一个电路板20还包括自第一连接部21远离第二连接部22的一侧延伸至固定架10外的延伸板23，延伸板23与外部电路电连接。
请参阅图2、图3和图9，固定架10具有用于供镜头组件30穿设固定的安装孔12、对应物侧壁311开设且与安装孔12相连通的通光孔13、与安装孔12相连通且位于固定架10侧边以供对焦线圈60穿设的第一穿孔14以及与安装孔12相连通且位于固定架10上方以供防抖线圈80穿设的第二穿孔15，镜筒31上相对应的设有供第一磁钢50固定的第一容置槽318以及供第二磁钢70固定的第二容置槽319，本实施例中的对焦线圈60固定于电路板20上且通过第一穿孔14与第一容置槽318内的第一磁钢50相配合，产生用于驱动镜头组件30沿光轴方向移动的作用力，防抖线圈80固定于电路板20上且通过第二穿孔15与第二容置槽319内的第二磁钢70相配合，产生用于驱动镜头组件30沿垂直光轴方向移动的作用力，第一连接部21和/或第二连接部22至少部分露设于固定架10外。
优选地，镜头透镜模组1还包括成像传感器200和若干防护盖300，成像传感器200可拆卸安装于固定架10之靠近镜头组件30像侧的端部，光线经镜头组件30到达所述成像传感器200并在成像传感器200上成像。防护盖300安装于固定架10上且覆盖于电路板20上的第一连接部21和/或第二连接部22，以防止外部光线直接进入到镜头组件30内。
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (11)

  1. 一种镜头透镜模组，其特征在于：包括固定架、设于所述固定架内的镜头组件、连接于所述固定架与所述镜头组件之间以将所述镜头组件悬挂于所述固定架内的弹性悬挂组件、设于所述镜头组件上的第一磁钢、设于所述固定架上并用于与所述第一磁钢配合以驱动所述镜头组件沿光轴的第一方向移动的对焦线圈、设于所述镜头组件上的第二磁钢以及设于所述固定架上并与所述第二磁钢配合的防抖线圈，所述防抖线圈驱动所述镜头组件沿垂直光轴的第二方向移动以补偿所述镜头组件在垂直于所述光轴方向的抖动。
  2. 根据权利要求1所述的镜头透镜模组，其特征在于，所述弹性悬挂组件包括若干个间隔设置的悬挂件，每个所述悬挂件包括相对设置的顶端与底端、以及连接在所述顶端与所述底端之间的形变部，所述形变部沿垂直于所述第一方向及所述第二方向延伸，所述顶端与所述固定架连接，所述底端与所述镜头组件连接，所述镜头组件与所述形变部间隔设置，所述镜头组件包括沿所述光轴相对的物侧壁与像侧壁、沿所述形变部的延伸方向相对设置的顶壁与底壁、以及自所述顶壁朝所述底壁延伸的延伸壁，所述延伸壁连接在所述物侧壁与所述像侧壁之间，所述固定架对应所述物侧壁开设有通光孔。
  3. 根据权利要求2所述的镜头透镜模组，其特征在于，所述弹性悬挂组件还包括若干个分别设于所述顶端并均嵌设于所述固定架内的第一固定块和若干个分别设于所述底端并均嵌设于所述镜头组件内的第二固定块，所述固定架对应所述顶端开设有收容部，所述顶端收容于所述收容部内并由所述第一固定块固定。
  4. 根据权利要求3所述的镜头透镜模组，其特征在于，所述悬挂件设有四个，所述镜头组件远离所述顶端的一侧朝向所述镜头组件物侧和像侧的端部都凸设有两个凸耳，所述悬挂件的底端嵌设于所 述凸耳内并由所述第二固定块固定。
  5. 根据权利要求2-4任一项所述的镜头透镜模组，其特征在于，所述第一磁钢、对焦线圈、第二磁钢以及防抖线圈的数量都为两个，两所述第一磁钢分别安装于所述镜头组件两相背的延伸壁上，两所述第二磁钢均安装于所述顶壁，两所述对焦线圈分别设于所述固定架两侧并与两所述第一磁钢一一间隔相对设置，两所述防抖线圈均设于所述固定架上并与两所述第二磁钢一一间隔相对设置。
  6. 根据权利要求5所述的镜头透镜模组，其特征在于，所述镜头透镜模组还包括第一导磁板、第二导磁板和设于所述固定架上的电路板，所述对焦线圈和所述防抖线圈均与所述电路板连接，所述第一导磁板设于所述对焦线圈远离所述第一磁钢的一侧并与所述第一磁钢组成磁回路；
    所述第二导磁板设于所述防抖线圈之远离所述第二磁钢的一侧并与所述第二磁钢组成磁回路。
  7. 根据权利要求6所述的镜头透镜模组，其特征在于，所述第一导磁板设于所述对焦线圈与所述电路板之间或者设于所述电路板之远离所述对焦线圈的一侧；
    所述第二导磁板设于所述防抖线圈与所述电路板之间或者设于所述电路板之远离所述防抖线圈的一侧。
  8. 根据权利要求6所述的镜头透镜模组，其特征在于，所述电路板包括嵌设于所述固定架内的第一连接部以及自所述第一连接部弯折延伸的第二连接部，所述第一连接部与所述延伸壁相对并与所述对焦线圈电连接，所述第二连接部与所述顶壁相对并与所述防抖线圈电连接。
  9. 根据权利要求8所述的镜头透镜模组，其特征在于，所述电路板设有两个，且两个所述电路板分别位于所述镜头组件的相对两侧。
  10. 根据权利要求9所述的镜头透镜模组，其特征在于，至少一个所述 电路板还包括自所述第一连接部远离所述第二连接部的一侧延伸至所述固定架外的延伸板，所述延伸板与外部电路电连接。
  11. 根据权利要求8所述的镜头透镜模组，其特征在于，所述第一连接部和/或所述第二连接部至少部分露设于所述固定架，所述镜头透镜模组还包括防护盖，所述防护盖安装于所述固定架上且覆盖所述第一连接部和/或所述第二连接部。
PCT/CN2019/089716 2019-06-01 2019-06-01 一种镜头透镜模组 WO2020243853A1 (zh)

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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110753172B (zh) * 2019-10-22 2022-02-15 Oppo广东移动通信有限公司 校正方法、装置、电子设备和音圈马达
CN214503997U (zh) * 2020-03-06 2021-10-26 台湾东电化股份有限公司 光学元件驱动机构
CN113395418B (zh) * 2020-03-13 2022-08-26 华为技术有限公司 一种摄像模组及电子设备
CN111650715A (zh) * 2020-06-15 2020-09-11 瑞声通讯科技(常州)有限公司 镜头模组
CN114157800B (zh) * 2020-09-07 2024-02-13 北京小米移动软件有限公司 驱动模组、摄像装置和电子设备
CN114666491B (zh) * 2020-12-23 2023-05-19 华为技术有限公司 镜头控制方法、摄像模组及电子设备
CN115144993B (zh) * 2021-03-31 2024-04-05 阿尔卑斯阿尔派株式会社 镜头驱动模块
CN113347354B (zh) * 2021-05-28 2022-08-09 昆山联滔电子有限公司 音圈马达
CN113489889A (zh) * 2021-08-03 2021-10-08 Oppo广东移动通信有限公司 双防抖系统、方法、电子设备及计算机可读存储介质
CN113489888B (zh) * 2021-08-03 2023-05-19 Oppo广东移动通信有限公司 摄像头模组及电子设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130170052A1 (en) * 2011-12-29 2013-07-04 Hon Hai Precision Industry Co., Ltd. Voice coil motor and lens module including same
CN105204268A (zh) * 2015-10-20 2015-12-30 南昌欧菲光电技术有限公司 摄像头模组
WO2016166730A1 (en) * 2015-04-16 2016-10-20 Corephotonics Ltd. Auto focus and optical image stabilization in a compact folded camera
CN107529015A (zh) * 2017-09-12 2017-12-29 信利光电股份有限公司 一种防抖摄像模组
CN107765392A (zh) * 2017-11-29 2018-03-06 瑞声声学科技(苏州)有限公司 双镜头模组驱动装置
WO2018058674A1 (zh) * 2016-09-30 2018-04-05 东莞佩斯讯光电技术有限公司 超薄移轴中置式光学防抖音圈马达
CN208079224U (zh) * 2018-03-14 2018-11-09 欧菲影像技术（广州）有限公司 无线路板对焦防抖组件

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101500034B1 (ko) * 2012-06-29 2015-03-06 엘지이노텍 주식회사 카메라 모듈
KR101349473B1 (ko) * 2012-07-20 2014-01-09 엘지이노텍 주식회사 카메라 모듈
WO2015129120A1 (ja) * 2014-02-26 2015-09-03 富士フイルム株式会社 撮像モジュールの製造方法及び撮像モジュールの製造装置
US9910289B2 (en) * 2014-10-07 2018-03-06 Sunming Technologies (Hk) Limited Miniature lens driving apparatus
KR101829600B1 (ko) * 2015-11-23 2018-02-19 삼성전기주식회사 카메라 모듈
CN116908987A (zh) * 2017-05-12 2023-10-20 台湾东电化股份有限公司 光学机构
CN208399865U (zh) * 2018-05-18 2019-01-18 高瞻创新科技有限公司 一种能带动相机模组的防抖微型云台

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130170052A1 (en) * 2011-12-29 2013-07-04 Hon Hai Precision Industry Co., Ltd. Voice coil motor and lens module including same
WO2016166730A1 (en) * 2015-04-16 2016-10-20 Corephotonics Ltd. Auto focus and optical image stabilization in a compact folded camera
CN105204268A (zh) * 2015-10-20 2015-12-30 南昌欧菲光电技术有限公司 摄像头模组
WO2018058674A1 (zh) * 2016-09-30 2018-04-05 东莞佩斯讯光电技术有限公司 超薄移轴中置式光学防抖音圈马达
CN107529015A (zh) * 2017-09-12 2017-12-29 信利光电股份有限公司 一种防抖摄像模组
CN107765392A (zh) * 2017-11-29 2018-03-06 瑞声声学科技(苏州)有限公司 双镜头模组驱动装置
CN208079224U (zh) * 2018-03-14 2018-11-09 欧菲影像技术（广州）有限公司 无线路板对焦防抖组件

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