WO2020258093A1 - Ensemble lentille - Google Patents

Ensemble lentille Download PDF

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Publication number
WO2020258093A1
WO2020258093A1 PCT/CN2019/093083 CN2019093083W WO2020258093A1 WO 2020258093 A1 WO2020258093 A1 WO 2020258093A1 CN 2019093083 W CN2019093083 W CN 2019093083W WO 2020258093 A1 WO2020258093 A1 WO 2020258093A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
base
spring
pin
lens holder
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/CN2019/093083
Other languages
English (en)
Chinese (zh)
Inventor
朱银龙
李刚
卢继亮
李林珍
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/CN2019/093083 priority Critical patent/WO2020258093A1/fr
Priority to CN201910596161.4A priority patent/CN110286461B/zh
Publication of WO2020258093A1 publication Critical patent/WO2020258093A1/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
    • 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
    • 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

Definitions

  • the invention relates to lens optical imaging, in particular to a lens assembly.
  • high-performance lens modules have been installed on portable terminals such as smart phones and tablet computers.
  • the high-performance lens module generally has autofocus function (auto focusing).
  • autofocus function auto focusing
  • the related technology lens components not only need to meet the AF autofocus function, but also need to meet the OIS anti-shake function, so it needs to be equipped with an AF device and an OIS anti-shake device.
  • the related art lens assembly needs to add an additional support structure to support the anti-shake device for OIS anti-shake function in order to achieve the above-mentioned purpose, and the assembly process of the support structure is complicated, which affects the yield and poor drop resistance performance. reliability.
  • the purpose of the present invention is to provide a lens assembly with simple structure, high assembly efficiency and high reliability.
  • a lens assembly comprising a base, a lens holder for installing a lens, an elastic member connected between the base and the lens holder, and a driving device connected between the base and the lens holder
  • the base has an inner cavity
  • the elastic member encloses a receiving space
  • the elastic member is located in the inner cavity of the base
  • the lens holder is suspended in the receiving space enclosed by the elastic member
  • the driving device is used for driving the lens holder to move in a direction perpendicular to the optical axis of the lens.
  • the lens holder and the base respectively include a circuit board
  • the elastic member is provided with a first conductive end and a second conductive end that are connected to each other, and the first conductive end and the The circuit board of the lens holder is electrically connected, and the second conductive end is electrically connected with the circuit board of the base.
  • the lens mount and the base each include a circuit board
  • the elastic member includes two sets of L-shaped spring plates, the two sets of L-shaped spring plates enclose the containing space, and each group has
  • the L-shaped spring leaf includes a first spring leaf and a second spring leaf, the second spring leaf is located outside the first spring leaf, the first spring leaf and the second spring leaf are both provided with mutual conduction
  • the first pin and the second pin are electrically connected to the circuit board of the lens holder, and the second pin is electrically connected to the circuit board of the base.
  • the two sets of L-shaped spring plates are symmetrical about the geometric center of the lens assembly.
  • one end of the first spring piece and the second spring piece both extend in a direction parallel to the optical axis of the lens and bend inward to form the first pin, and the first spring piece And the other end of the second spring piece both extend in a direction parallel to the optical axis of the lens and bend outward to form the second pin.
  • the lens mount is provided with a first protrusion
  • the first pin is engaged with the first protrusion
  • the base is provided with a second protrusion
  • the first protrusion The two pins are clamped on the second protrusion.
  • the driving device includes several groups of shape memory alloy wires.
  • any group of the shape memory alloy wires is energized, the group of shape memory alloy wires is deformed to drive the lens mount along a line perpendicular to the lens. Move the optical axis direction.
  • the base is square and includes four side walls.
  • the adjacent side walls are perpendicular to each other.
  • the group of shape memory alloy wires deform to The lens holder is driven to move toward one of the side walls.
  • each group of the shape memory alloy wire is in a "V" shape
  • the shape memory alloy wire includes two ends connected to the base and an arc-shaped drive end located between the two ends.
  • the lens mount is provided with a driving protrusion, the driving protrusion includes an arc-shaped end, and the arc-shaped driving end of the shape memory alloy wire is in mating contact with the arc-shaped end on the lens holder.
  • a blocking piece is provided on the driving convex portion of the lens holder to prevent the shape memory alloy wire from slipping off.
  • the lens assembly of the present invention includes a base, a lens mount, an elastic member, and a driving device.
  • the driving device is activated synchronously to drive the lens mount perpendicular to the lens.
  • the optical axis of the lens module moves in the direction of the optical axis, so the lens module can realize the OIS anti-shake function at the same time during autofocus;
  • the elastic part is located in the inner cavity of the base, and the elastic part is connected between the base and the lens mount, and the lens is made by the elastic part
  • the seat is suspended in the accommodating space enclosed by the elastic member, so the elastic member not only provides the base with a restoring force perpendicular to the optical axis of the lens, but also functions as an electrical connection between the lens base and the base circuit board ,
  • the assembly process of the lens assembly is reduced, the assembly efficiency is improved, and the drop deformation resistance of the lens assembly is effectively increased, thereby improving its reliability.
  • the elastic member of the present invention is composed of two sets of L-shaped spring leaves, and each set of L-shaped spring leaves includes a first spring plate and a second spring plate. Therefore, the elastic member can be modularized, thereby improving production efficiency. At the same time, when the first spring sheet or the second spring sheet is partially damaged, only the corresponding spring sheet can be replaced, which can save costs, and the first spring sheet and the second spring sheet are independent and can be connected to the lens holder Different lines between the circuit board and the circuit board of the base.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of a lens assembly provided by an embodiment of the present invention
  • FIG. 2 is a schematic diagram of an exploded structure of a lens assembly provided by an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of the three-dimensional structure of the lens assembly provided by an embodiment of the present invention when the base circuit board is not installed.
  • FIG. 4 is a top view of the lens assembly provided by an embodiment of the present invention when the base circuit board is not installed.
  • FIG. 5 is a schematic diagram of a three-dimensional structure of a base of a lens assembly provided by an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a three-dimensional structure of a lens mount of a lens assembly provided by an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a three-dimensional structure of an elastic member of a lens assembly provided by an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a three-dimensional structure of a shape memory alloy wire of a lens assembly provided by an embodiment of the present invention.
  • This embodiment provides a lens assembly 10, which includes a base 11, a lens mount 12 for mounting a lens, and an elasticity connected between the base 11 and the lens mount 12
  • the lens holder 12 is suspended in the accommodating space 131 enclosed by the elastic member 13, and the driving device 14 is used to drive the lens holder 12 to move along the direction perpendicular to the optical axis of the lens.
  • the lens assembly 10 has a square structure, the direction parallel to one side of the square structure is defined as the x-axis direction, the direction parallel to the other side of the square structure is defined as the y-axis direction, and the y-axis direction and the x-axis direction are perpendicular to each other. All are perpendicular to the optical axis of the lens.
  • the base 11 is square and includes four side walls.
  • the driving device 14 includes four sets of shape memory alloy wires 14, which are respectively connected to the four sides of the lens mount 12 and the base 11. wall.
  • the driving device 14 may also adopt other driving structures, such as an electromagnetic driving structure, as long as it can drive the lens holder 12 to move in a direction perpendicular to the optical axis of the lens.
  • the base 11 includes a first side wall 112, a second side wall 113, a third side wall 114, and a fourth side wall 115 that are adjacent to each other in sequence, the first side wall 112 and the second side wall 113, the third side wall 114 and the fourth side wall 115 can be integrally formed, and the adjacent side walls are perpendicular to each other to form the above-mentioned inner cavity 111.
  • the ray emitted from the first side wall 112 with the optical axis of the lens is +y Axis
  • the ray emitted from the third side wall 114 with the optical axis of the lens is the -y axis
  • the ray emitted from the second side wall 113 with the optical axis of the lens is the +x axis
  • the ray from the optical axis of the lens is fourth
  • the ray emitted from the side wall 115 is the -x axis.
  • the lens mount 12 when the shape memory alloy wire 14 connected between the first side wall 112 and the lens mount 12 is energized, the lens mount 12 is driven to shift along the +y axis toward the first side wall 112; when connected to the second side When the shape memory alloy wire 14 between the wall 113 and the lens mount 12 is energized, the lens mount 12 is driven to be offset along the +x axis toward the second side wall 113; when connected between the third side wall 114 and the lens mount 12 When the shape memory alloy wire 14 is energized, the lens holder 12 is driven to shift along the -y axis toward the third side wall 114; when the shape memory alloy wire 14 connected between the fourth side wall 115 and the lens holder 12 is energized, the lens The seat 12 is driven to be offset toward the fourth side wall 115 along the -x axis.
  • a circuit board 116 is installed on the base 11 for supplying power to the driving device 14.
  • An axial end surface of the first side wall 112 facing the circuit board 116 and an axial end surface of the third side wall 113 facing the circuit board 115 are respectively provided
  • fixing terminals 118 are provided on the end faces of the four side walls facing the circuit board 116 for fixing the four groups of shape memory alloys.
  • the material of the base 11 may be plastic.
  • the shape of the second protrusion 117 and the fixed terminal 118 is not limited, and the shape of the base is not limited to a square shape.
  • a metal cover plate 119 is also installed on the base 11 to cover the circuit board 116 of the base 11 for protecting the circuit board 116 of the base 11.
  • the lens mount 12 is preferably square and includes four side plates 121 and a cover plate 122.
  • the four side plates 121 and the cover plate 122 can be integrally formed.
  • a circuit board 123 is installed on the cover plate 122 for facing the lens
  • the auto-focus driving structure of the seat 12 is powered, and the cover plate 122 is provided with recesses 1221 on the upper surfaces of the two diagonal ends of the cover plate 122.
  • the recesses 1221 are provided with a plurality of first protrusions 1222 for fixing the elastic member 13
  • Four sets of driving protrusions 1223 are evenly distributed on the cover 122, and each set of driving protrusions 1223 is arranged on the center line of the length or width direction of the lens holder 12.
  • Each set of driving protrusions 1223 includes an arc Preferably, it is a V-shaped or U-shaped end 12231.
  • the arc-shaped end 12231 is in mating contact with the shape memory alloy wire 14.
  • Each group of driving protrusions 1223 is engaged with a stopper 1224 (see Figure 2) to prevent the shape memory alloy
  • the line 14 slips off, and the baffle 1224 can be made of steel.
  • the material of the lens mount 12 may be plastic.
  • the shape of the first protrusion 1222 is not limited, and the shape of the lens mount 12 is not limited to a square shape.
  • the elastic member 13 includes two sets of L-shaped spring leaves, the two sets of L-shaped spring leaves are arranged in the circumferential direction, and each set of L-shaped spring leaves includes an extension along the x-axis direction and along the y The axial extension, the end of the extension of each group of spring leaves in the x-axis direction is close to the end of the other group of extensions in the axial direction, thereby enclosing the above-mentioned accommodation space 131, the two sets of L-shaped springs are mutually exclusive
  • Each group of L-shaped spring leaves includes a first spring plate 132 and a second spring plate 133. The second spring plate 133 is located outside the first spring plate 132.
  • the first spring plate 132 and the second spring plate 133 do not contact each other.
  • One end of the spring piece 132 and the second spring piece 133 both extend in the direction parallel to the optical axis of the lens and bend inward to form a first pin 1321, and the first pin 1321 is engaged with the first protrusion 1222 of the lens mount
  • the other ends of the first spring piece 132 and the second spring piece 133 extend parallel to the optical axis of the lens and are bent outward to form a second pin 1322.
  • the two pins 1322 are clamped on the second protrusion 117 of the base, and are welded and fixed with the circuit board 116 of the base.
  • the first pin 1321 and the second pin 1322 are connected to each other.
  • the two sets of L-shaped springs have the following functions: one, to provide the base 11 with a restoring force perpendicular to the optical axis of the lens (that is, the +x or -x or +y or -y direction); two, through the first pin 1321 and the second pin 1322 are connected to the lens holder 12 and the base 11, so that the lens holder 12 is suspended in the receiving space 131 surrounded by two sets of L-shaped springs.
  • first spring plate 132 and the second spring plate 133 do not contact each other, first A pin 1321 and a second pin 1322 are respectively electrically connected to the circuit board of the lens holder 12 and the circuit board 116 of the base, so that power can be supplied to the circuit board of the lens holder 12 through the first spring piece 132 and the second spring piece 133 .
  • the two sets of L-shaped spring plates are symmetrical about the geometric center of the lens assembly 10.
  • first spring leaf 132 and the second spring leaf 133 are made of an elastic alloy.
  • the elastic member 13 is composed of two sets of L-shaped spring leaves, and each set of L-shaped spring leaves includes a first spring plate 132 and a second spring plate 133, the elastic member 13 can be produced in a modular manner, thereby improving production efficiency.
  • first spring leaf 132 or the second spring leaf 133 is partially damaged, only the corresponding spring leaf can be replaced, which can save cost.
  • each group of shape memory alloy wires 14 is in a "V" shape, and each group of shape memory alloy wires 14 includes two ends 141 connected to the base 11 and an arc between the two ends 141 Type drive end 142.
  • the two ends 141 of the shape memory alloy wire are connected with a wire binding clip 143.
  • the wire binding clip 143 is clamped on the fixed terminal 118 on the base, thereby fixing the shape memory alloy wire on the base 11.
  • the arc-shaped drive end 142 of the alloy wire is in mating contact with the arc-shaped end 12231 on the lens mount.
  • the amount of deformation of the group of shape memory alloy wires 14 can be adjusted, thereby adjusting the moving distance of the lens mount 12 in the vertical optical axis plane.
  • the material of the shape memory alloy wire 14 is not limited.
  • the material of the shape memory alloy wire 14 may include Nitinol, and the diameter of the shape memory alloy wire 14 is preferably 10 ⁇ m-50 ⁇ m. It can be understood that the two ends 141 of the shape memory alloy wire can also be fixed on the lens holder 12, and the arc-shaped drive end 142 of the shape memory alloy wire is in contact with the base 11, and can drive the lens holder 12 along +y or -y or Move in +x or -x direction.
  • the circuit board 116 on the base is provided with four groups of positive and negative electrodes, and each group of positive and negative electrodes are electrically connected to the wire binding clips 143 of each group of shape memory alloy wires 14 to provide each group of shape memory alloy wires 14 power supply.

Landscapes

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

Abstract

L'invention concerne un ensemble lentille (10) comprenant une base (11), un support de lentille (12) servant à monter une lentille, un élément élastique (13) connecté entre la base (11) et le support de lentille (12), et un dispositif d'entraînement (14) connecté entre la base (11) et le support de lentille (12) ; la base (11) est dotée d'une cavité interne (111), l'élément élastique (13) se referme pour former un espace de réception (131), et l'élément élastique (13) est situé sur la cavité interne (111) de la base (11) et il permet au support de lentille (12) d'être suspendu dans l'espace de réception (131) entouré et formé par l'élément élastique (13) ; et le dispositif d'entraînement (14) sert à entraîner le support de lentille (12) à se déplacer le long d'une direction perpendiculaire à l'axe optique de la lentille. L'élément élastique (13) a pour fonction de fournir à la base (11) une force de rappel perpendiculaire à l'axe optique de la lentille, et il permet de simultanément connecter électriquement le support de lentille (12) et une carte de circuit imprimé de base (116), ce qui allège le processus d'assemblage de l'ensemble lentille (10), améliore l'efficacité d'assemblage et augmente efficacement les capacités de résistance à la déformation de chute de l'ensemble lentille (10), améliorant ainsi sa fiabilité.
PCT/CN2019/093083 2019-06-26 2019-06-26 Ensemble lentille Ceased WO2020258093A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2019/093083 WO2020258093A1 (fr) 2019-06-26 2019-06-26 Ensemble lentille
CN201910596161.4A CN110286461B (zh) 2019-06-26 2019-07-03 镜头组件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/093083 WO2020258093A1 (fr) 2019-06-26 2019-06-26 Ensemble lentille

Publications (1)

Publication Number Publication Date
WO2020258093A1 true WO2020258093A1 (fr) 2020-12-30

Family

ID=68020452

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/093083 Ceased WO2020258093A1 (fr) 2019-06-26 2019-06-26 Ensemble lentille

Country Status (2)

Country Link
CN (1) CN110286461B (fr)
WO (1) WO2020258093A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021000162A1 (fr) * 2019-06-30 2021-01-07 瑞声光学解决方案私人有限公司 Module de lentille
WO2021000160A1 (fr) * 2019-06-30 2021-01-07 瑞声光学解决方案私人有限公司 Module de lentille
CN110727122A (zh) * 2019-09-11 2020-01-24 瑞声科技(新加坡)有限公司 一种光学防抖组件
CN210958466U (zh) * 2019-11-12 2020-07-07 华为技术有限公司 Sma驱动器、摄像装置和电子设备
CN112702503B (zh) * 2021-01-05 2024-08-16 广东海德亚科技有限公司 致动机构、摄像模组与电子设备
CN113329162B (zh) * 2021-07-06 2023-05-09 广东海德亚科技有限公司 一种用于摄像头防抖及对焦的装置
CN113917698B (zh) * 2021-10-21 2024-11-01 深圳市火乐科技发展有限公司 扩散片组件、光源装置及投影仪

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US8077411B2 (en) * 2008-01-24 2011-12-13 E-Pin Optical Industry Co., Ltd. Lens displacement mechanism using shaped memory alloy
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Publication number Priority date Publication date Assignee Title
US8077411B2 (en) * 2008-01-24 2011-12-13 E-Pin Optical Industry Co., Ltd. Lens displacement mechanism using shaped memory alloy
CN102375292A (zh) * 2010-08-20 2012-03-14 林小军 控制光学系统倾斜或转动中心的装置及致动器
CN109477999A (zh) * 2016-07-21 2019-03-15 Lg伊诺特有限公司 透镜驱动装置以及包括该透镜驱动装置的相机模块和光学设备
CN208754149U (zh) * 2018-08-16 2019-04-16 赖志强 形状记忆推进机构及马达
CN109061827A (zh) * 2018-09-13 2018-12-21 昆山联滔电子有限公司 镜头驱动装置和摄像模组
CN208766372U (zh) * 2018-09-13 2019-04-19 昆山联滔电子有限公司 镜头驱动装置和摄像模组

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Publication number Publication date
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CN110286461A (zh) 2019-09-27

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