WO2021072820A1 - 一种镜头模组 - Google Patents

一种镜头模组 Download PDF

Info

Publication number
WO2021072820A1
WO2021072820A1 PCT/CN2019/115359 CN2019115359W WO2021072820A1 WO 2021072820 A1 WO2021072820 A1 WO 2021072820A1 CN 2019115359 W CN2019115359 W CN 2019115359W WO 2021072820 A1 WO2021072820 A1 WO 2021072820A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
optical axis
base
guide groove
guide
Prior art date
Application number
PCT/CN2019/115359
Other languages
English (en)
French (fr)
Inventor
李林珍
卢继亮
李刚
张晋
顾春欣
Original Assignee
诚瑞光学(常州)股份有限公司
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 诚瑞光学(常州)股份有限公司 filed Critical 诚瑞光学(常州)股份有限公司
Publication of WO2021072820A1 publication Critical patent/WO2021072820A1/zh

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
    • 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
    • G02B7/027—Mountings, adjusting means, or light-tight connections, for optical elements for lenses the lens being in the form of a sphere or ball
    • 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
    • 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
    • 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
    • G02B7/102—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 controlled by a microcomputer
    • 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
    • H04N23/51—Housings
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations

Definitions

  • the present invention relates to the technical field of optical imaging, in particular to a lens module.
  • 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.
  • the lens assembly generally has autofocus function (auto focusing) and optical image stabilization (OIS: optical image stabilization).
  • the lens module in the prior art has low lens movement stability and complex mechanical structure during the process of autofocus and optical image stabilization. Therefore, it is necessary to provide a new lens lens module to solve the above-mentioned problems.
  • the object of the present invention is to provide a lens module whose lens can move stably and has a simple mechanical structure during the process of autofocus and optical image stabilization.
  • a lens module includes a housing, a focus bracket, a first base, a second base, and a lens housed in the housing, the lens is installed in the focus bracket, and the focus bracket, from top to bottom,
  • the first base and the second base are sequentially stacked, the bottom side of the focusing bracket is provided with three first guide grooves, and the top side of the first base is provided with three second guide grooves, so The first guide groove and the second guide groove are in one-to-one correspondence, a first ball is provided between the first guide groove and the second guide groove, and each corresponding first guide groove,
  • the second guide groove and the first ball constitute a first guide mechanism, the bottom side of the first base is provided with three third guide grooves, and the top side of the second base is provided with three fourth guide grooves ,
  • the third guide groove and the fourth guide groove have a one-to-one correspondence, a second ball is arranged between the third guide groove and the fourth guide groove, and each corresponding third guide groove ,
  • the fourth guide groove and the second ball
  • a first elastic member is connected between the focusing bracket and the first base, and the first elastic member is only arranged along the edge of the focusing bracket relative to the first base and the second base.
  • a second elastic member is connected between the first base and the second base, and the second elastic member is only in the focus bracket and the The first base is elastically deformed while moving relative to the second base in a direction perpendicular to the optical axis of the lens.
  • first guide groove and the second guide groove both extend in a direction parallel to the optical axis of the lens to guide the first ball to move in a direction parallel to the optical axis of the lens.
  • the third guide groove and the fourth guide groove both extend in a direction perpendicular to the optical axis of the lens to guide the second rolling ball to move in a direction perpendicular to the optical axis of the lens.
  • the cross-sectional profile of one of the first guide grooves in a direction perpendicular to the optical axis of the lens is rectangular, and the remaining cross-sectional profile of the first guide groove and the second guide groove in the direction perpendicular to the optical axis of the lens is trapezoidal Or a triangle is used to restrict the movement of the first ball in a direction perpendicular to the optical axis of the lens.
  • a cross-sectional profile of the third guide groove in a direction parallel to the optical axis of the lens or a fourth guide groove in parallel is rectangular, and the remaining cross-sectional profiles of the third guide groove and the fourth guide groove in the direction parallel to the optical axis of the lens are trapezoidal or triangular to limit
  • the second ball moves in a direction parallel to the optical axis of the lens.
  • first guide mechanisms are provided on one side of the optical axis of the lens, and the other first guide mechanism is provided separately on the other side of the optical axis of the lens, and the separately provided
  • the first guide mechanism is located between the other two first guide mechanisms in a direction parallel to the optical axis
  • the two second guide mechanisms are provided on one side of the optical axis of the lens
  • the other Two guiding mechanisms are separately arranged on the other side of the optical axis of the lens
  • the separately arranged second guiding mechanism is located between the other two second guiding mechanisms in a direction parallel to the optical axis.
  • the lens module includes a pair of focusing magnets and a focusing coil to drive the focusing bracket to move relative to the first base and the second base along the optical axis of the lens, the lens
  • the module also includes a pair of anti-shake magnets and anti-shake coils to drive the focus bracket and the first base to move relative to the second base in a direction perpendicular to the optical axis of the lens.
  • the focusing magnet is fixedly connected to the bottom side of the focusing bracket
  • the housing includes a top plate and a bottom plate
  • the bottom plate is a magnetic adsorption member and is attracted to the focusing magnet.
  • the focus coil is disposed on the bottom plate, one of the anti-shake magnet and the anti-shake coil is fixedly connected to the top side of the focus bracket, and the other is disposed on the top plate.
  • the number of the focusing magnets is three, and two of the focusing magnets are provided on both sides of the second guide groove of the first guide mechanism that are separately provided in the optical axis direction; the other one The focusing magnet is arranged between the second guide grooves of the other two first guiding mechanisms; the number of the anti-shake magnets is two, and the two anti-shake magnets are respectively arranged in the The two sides of the optical axis of the lens.
  • a first accommodating groove is provided on the bottom side of the focusing bracket, one focusing magnet is embedded in each of the first accommodating grooves, and a second accommodating groove is provided on the top side of the focusing bracket.
  • One of the anti-vibration magnets is embedded in each of the second accommodating grooves.
  • the first elastic member is disposed on a side surface of the first base perpendicular to the optical axis direction of the lens
  • the second elastic member is disposed on a side surface of the first base parallel to the lens. The side of the optical axis direction.
  • Auto focus and optical image stabilization can be realized by the relative movement between the stacked focus bracket, the first base and the second base, and the stable lens movement can be realized by the minimum number of guide mechanisms and the simplest structure; in addition, due to Only the first elastic element and the second elastic element are required to be deformed in one direction respectively to provide a recovery force in one direction, which reduces the structure and performance requirements of the lens module on the elastic element.
  • Figure 1 is a three-dimensional view of the lens module of the present invention
  • Figure 2 is an internal view of the lens module of the present invention.
  • Figure 3 is an internal exploded view of the lens module of the present invention.
  • FIG. 4 is a partial view of the interior of the lens module of the present invention.
  • FIG. 5 is a partial exploded view of the interior of the lens module of the present invention.
  • FIG. 6 is a partial exploded view of the interior of the lens module of the present invention.
  • Figure 7 is a partial exploded view of the interior of the lens module of the present invention.
  • Fig. 8 is a partial exploded view of the interior of the lens module of the present invention.
  • FIG. 9 is a partial exploded view of the interior of the lens module of the present invention.
  • FIG. 10 is a partial exploded view of the interior of the lens module of the present invention.
  • FIG. 11 is a partial cross-sectional view of the interior of the lens module of the present invention.
  • Figure 12 is a perspective view of the first base
  • Figure 13 is a perspective view of the second base.
  • a lens module includes a housing, a focusing bracket 3, a first base 4, a second base 5, a lens 31, a focusing magnet 33, a focusing coil 111, and a first elastic member 62.
  • the housing includes a top plate 2 and a bottom plate 1 spaced apart from the top plate 2.
  • the focus bracket 3, the first base 4 and the second base 5 are stacked on the bottom plate 1 in order from top to bottom, and the lens 31 is installed in the focus bracket 3.
  • the focusing magnet 33 is installed on the focusing bracket 3, and the focusing coil 111 is installed on the bottom plate 1 and used to cooperate with the focusing magnet 33 to drive the focusing bracket 3 relative to the first base 4 along the optical axis of the lens 31 (axis A in FIG. ).
  • the first elastic member 62 is provided with a pair, which is arranged on the rear side of the lens 31 (the direction F in FIG. 3 is the front side), that is, arranged on the first base 4 perpendicular to the optical axis of the lens 31 The back side of the direction.
  • One end of the first elastic member 62 is connected with the focusing bracket 3, and the other end is connected with the first base 4 (see FIG. 4).
  • the first elastic member 62 is only elastically deformed when the focus bracket 3 moves relative to the first base 4 and the second base 5 along the optical axis direction of the lens 31.
  • the lens 31 needs to focus, current is applied to the focusing coil 111, the focusing coil 111 generates a changing magnetic field, and the focusing magnet 33 moves in the direction of the optical axis of the lens 31 under the action of the Loren magnetic force to complete focusing.
  • An elastic member 62 deforms and accumulates elastic force. After focusing, the current flowing into the focusing coil 111 is disconnected, the focusing magnet 33 is not stressed, and returns to the initial position under the elastic force of the first elastic member 62.
  • the lens module further includes a first ball 41, and the bottom side of the focus bracket 3 is provided with three first guide grooves 34 arranged in a direction parallel to the optical axis.
  • the top side of the first base 4 is provided with three second guide grooves 43 arranged in a direction parallel to the optical axis.
  • the positions of the first guide groove 34 and the second guide groove 43 are in one-to-one correspondence.
  • the first ball 41 is disposed between the first guide groove 34 and the second guide groove 43, and each corresponding first guide groove 34, second guide groove 43, and first ball 41 constitutes a first guide mechanism.
  • Both the first guide groove 34 and the second guide groove 43 extend in a direction parallel to the optical axis of the lens 31 to guide the first rolling ball 41 to move in a direction parallel to the optical axis of the lens 31.
  • the provision of the first ball 41 reduces the sliding friction between the focus bracket 3 and the first base 4, so that the relative movement between the focus bracket 3 and the first base 4 is more sensitive.
  • the bottom plate 1 is a magnetic adsorption member.
  • the base plate 1 is used to form a magnetic attraction force on the focus bracket 3 provided with the focus magnet 33, and the first ball 41 can be pressed tightly.
  • the bottom plate can increase the BL value, which is beneficial to increase the driving force.
  • each second guide groove 43 there are three second guide grooves 43, of which two second guide grooves 43 are provided on one side of the optical axis of the lens 31, and the other second guide groove 43 is separately provided on the lens 31 The other side of the optical axis.
  • the separately provided second guide groove 43 is located between the pair of two second guide grooves 43 in a direction parallel to the optical axis, and each second guide groove 43 is provided with a first ball 41.
  • the three first balls 41 can form a stable focus bracket 3 A three-point support structure, and only three first balls 41 are required to form a stable support for the focus bracket 3, which simplifies the structure and reduces the complexity of the lens module.
  • the cross-sectional profile of one of the first guide grooves 34 or the cross-sectional profile of one of the second guide grooves 43 It is rectangular.
  • the cross-sectional profile of one of the second guide grooves 43 is rectangular (refer to FIG. 12), and the remaining cross-sectional profile is trapezoidal or triangular.
  • the two opposite inclined surfaces in the triangular and trapezoidal structures are both attached to the first ball 41 to restrict the movement of the first ball 41 in the direction perpendicular to the optical axis of the lens 31.
  • the cross-sectional profile of one of the first guide grooves 34 or the cross-sectional profile of one of the second guide grooves 43 is set to be rectangular, so as to reduce the requirements on the machining accuracy of the parts.
  • the focusing magnet 33 is mounted on the focusing bracket 3.
  • the focusing bracket 3 is provided with first accommodating grooves 35 on both the left and right sides of the lens 31 (the direction N in Figure 3 is the right side).
  • An accommodating groove 35 is provided on the bottom side of the focusing bracket 3.
  • two focusing magnets 33 are arranged on one side of the optical axis of the lens 31, and the other focusing magnet 33 is arranged on the other side of the optical axis of the lens 31, and a separate focusing magnet 33 is arranged parallel to the optical axis of the lens 31.
  • the direction of the optical axis is located between two focusing magnets 33 arranged in a pair.
  • the magnetic force received by the separately set focusing magnet 33 is equal to the sum of the magnetic forces received by the two focusing magnets 33 set in a pair. In this way, the lens module can avoid the separately set focusing magnet during the auto-focusing process.
  • the magnetic force received by the steel 33 is not equal to the sum of the magnetic force received by the two focusing magnets 33 arranged in a pair, which causes the focus bracket 3 to rotate, that is, the lens 31 rotates, and the imaging quality of the lens 31 is reduced.
  • the lens module further includes a second base 5, an anti-shake magnet 32, an anti-shake coil 211 and a second elastic member 61.
  • the second base 5 is provided on the bottom side of the first base 4.
  • the anti-shake magnet 32 is installed on the focus bracket 3, and the anti-shake coil 211 is installed on the top plate 1 of the housing and is used to cooperate with the anti-shake magnet 32 to drive the focus bracket 3 in a direction perpendicular to the optical axis relative to the second base 5
  • one end of the second elastic member 61 is connected to the first base 4 and the other end is connected to the second base 5.
  • the lens module further includes a second ball 51
  • the bottom side of the first base 4 is provided with three third guide grooves 42 perpendicular to the direction of the optical axis
  • the second base 5 There are three fourth guide grooves 52 (see FIG. 13) arranged along the direction perpendicular to the optical axis on the top side of the, and the positions of the third guide grooves 42 and the fourth guide grooves 52 are in one-to-one correspondence.
  • the second ball 51 is disposed between the third guide groove 42 and the fourth guide groove 52, and each corresponding third guide groove 42, the fourth guide groove 52, and the second ball 51 constitute a second guide mechanism.
  • the third guide groove 42 and the fourth guide groove 52 both extend in a direction perpendicular to the optical axis of the lens 31 to guide the second rolling ball 51 to move in a direction perpendicular to the optical axis of the lens 31.
  • the fourth guide groove 52 is located between the two fourth guide grooves 52 arranged in a pair in a direction parallel to the optical axis, and each fourth guide groove 52 is provided with a second ball 51. 9, 10, 11, and 13, in the third guide groove 42 and the fourth guide groove 52, the cross-sectional profile of one of the third guide grooves 42 or the cross-sectional profile of one of the fourth guide grooves 52 It is rectangular. In this embodiment, the cross-sectional profile of one of the fourth guide grooves 52 is rectangular (refer to FIG.
  • the remaining cross-sectional profile is trapezoidal or triangular.
  • the two opposite inclined surfaces in the triangular and trapezoidal structures are both attached to the second ball 51 to restrict the movement of the second ball 51 in a direction parallel to the optical axis of the lens 31.
  • the anti-shake magnet 32 is installed on the focus bracket 3.
  • the focus bracket 3 is provided with second accommodating grooves 36 on the left and right sides of the optical axis of the lens 31.
  • the anti-shake magnet 32 is provided with two, each An anti-vibration magnet 32 is embedded in the second accommodating groove 36, and two anti-vibration coils 211 are provided in one-to-one correspondence with the two anti-vibration magnets 32 (in conjunction with FIG. 3).
  • the second elastic member 61 is only elastically deformed when the focus bracket 3 and the first base 4 move together relative to the second base 5 in a direction perpendicular to the optical axis of the lens 31.
  • the working principle of the lens module is:
  • the focusing coil 111 is used to cooperate with the focusing magnet 33 to drive the focusing bracket 3 to move relative to the first base 4 and the second base 5 along the optical axis of the lens 31 (combined with FIGS. 4 and 8, the first in this process One elastic member 62 is deformed, and the second elastic member 61 is basically not deformed, so that the lens 31 can automatically focus.
  • the focus coil 111 is powered off, the focus bracket 3 is reset under the elastic restoring force of the first elastic member 62.
  • the anti-shake coil 211 is used to cooperate with the anti-shake magnet 32 to drive the focus bracket 3 and the first base 4 to move relative to the second base 5 in a direction perpendicular to the optical axis (combined with FIGS. 4 and 9, this During the process, the second elastic member 61 is deformed, and the first elastic member 62 is basically not deformed, so that the lens 31 realizes optical anti-shake.
  • the anti-shake coil 211 is powered off, the focus bracket 3 and the first base 4 are reset under the elastic restoring force of the second elastic member 61.
  • the lens module further includes a first circuit board 21 installed on the top board 2 and a second circuit board 11 installed on the bottom board 1.
  • the focusing coil 111 is electrically connected to the second circuit board 11, and the anti-shake coil 211 is electrically connected to the first circuit board 21, so that the focusing coil 111 and the anti-shake coil 211 can be powered on, thereby generating magnetic force.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Adjustment Of Camera Lenses (AREA)
  • Lens Barrels (AREA)

Abstract

一种镜头模组，包括外壳以及收容于外壳的对焦支架（3）、第一基座（4）、第二基座（5）、镜头（31），镜头（31）安装于对焦支架（3）中，从上至下对焦支架（3）、第一基座（4）和第二基座（5）依次叠置，对焦支架（3）的底侧设有三个第一导向槽（34），第一基座（4）的顶侧设有三个第二导向槽（43），第一导向槽（34）与第二导向槽（43）位置一一对应，第一导向槽（34）与第二导向槽（43）之间设有第一滚珠（41），第一基座（4）的底侧设有三个第三导向槽（42），第二基座（5）的顶侧设有三个第四导向槽（52），第三导向槽（42）与第四导向槽（52）位置一一对应，第三导向槽（42）与第四导向槽（52）之间设有第二滚珠（51），通过叠设的对焦支架（3）、第一基座（4）和第二基座（5）之间的相对移动可实现自动对焦和光学防抖，并通过最少数目的导向机构和最简单的机构实现稳定的镜头（31）移动。

Description

一种镜头模组 技术领域
本发明涉及光学成像技术领域，尤其涉及一种镜头模组。
 背景技术
近年来，随着光学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。该镜头组件一般具有自动对焦功能(auto focusing)和光学防抖功能(OIS：optical image stabilization)。
现有技术中的镜头模组在自动对焦和光学防抖的过程中，其镜头移动的稳定性不高且机械结构复杂。因此，有必要提供一种新的镜头透镜模组以解决上述问题。
 技术问题
本发明的目的在于提供一种镜头模组，在自动对焦和光学防抖过程中，其镜头能够稳定移动且机械结构简单。
 技术解决方案
本发明的技术方案如下：
一种镜头模组，包括外壳以及收容于所述外壳的对焦支架、第一基座、第二基座、镜头，所述镜头安装于所述对焦支架中, 从上至下所述对焦支架、所述第一基座和所述第二基座依次叠置，所述对焦支架的底侧设有三个第一导向槽，所述第一基座的顶侧设有三个第二导向槽，所述第一导向槽与所述第二导向槽位置一一对应，所述第一导向槽与所述第二导向槽之间设有第一滚珠，每一对应的所述第一导向槽、所述第二导向槽和所述第一滚珠构成第一导向机构，所述第一基座的底侧设有三个第三导向槽，所述第二基座的顶侧设有三个第四导向槽，所述第三导向槽与所述第四导向槽位置一一对应，所述第三导向槽与所述第四导向槽之间设有第二滚珠，每一对应的所述第三导向槽、所述第四导向槽和所述第二滚珠构成第二导向机构，所述对焦支架可相对所述第一基座及所述第二基座沿镜头的光轴方向移动，所述对焦支架及所述第一基座可一并相对所述第二基座沿垂直于所述镜头光轴的方向移动。
具体地，所述对焦支架与所述第一基座之间连接有第一弹性件，所述第一弹性件只在所述对焦支架相对所述第一基座及所述第二基座沿所述镜头的光轴方向移动的过程中产生弹性形变，所述第一基座和所述第二基座之间连接有第二弹性件，所述第二弹性件只在对焦支架及所述第一基座一并相对所述第二基座沿垂直于所述镜头光轴的方向移动的过程中产生弹性形变。
具体地，所述第一导向槽与所述第二导向槽均沿平行于所述镜头光轴的方向延伸，以引导所述第一滚珠沿平行于所述镜头光轴的方向移动，所述第三导向槽与所述第四导向槽均沿垂直于所述镜头光轴的方向延伸，以引导所述第二滚珠沿垂直于所述镜头的光轴方向移动。
具体地，在所述第一导向槽和所述第二导向槽中，其中一个所述第一导向槽在垂直于所述镜头的光轴方向的横截面轮廓，或者，其中一个所述第二导向槽在垂直于所述镜头的光轴方向的横截面轮廓为矩形，所述第一导向槽和所述第二导向槽其余的在垂直于所述镜头的光轴方向的横截面轮廓为梯形或者三角形以限制所述第一滚珠沿垂直于所述镜头的光轴方向移动。
具体地，在所述第三导向槽和所述第四导向槽中，一个所述第三导向槽在平行于所述镜头的光轴方向的横截面轮廓或者一个所述第四导向槽在平行于所述镜头的光轴方向的横截面轮廓为矩形，所述第三导向槽和所述第四导向槽其余的在平行于所述镜头的光轴方向的横截面轮廓为梯形或者三角形以限制所述第二滚珠沿平行于所述镜头的光轴方向移动。
具体地，两个所述第一导向机构设于所述镜头的光轴的一侧，另一个所述第一导向机构单独设于所述镜头的光轴的另一侧，单独设置的所述第一导向机构在平行于光轴的方向上位于另两个所述第一导向机构之间；两个所述第二导向机构设于所述镜头的光轴的一侧，另一个所述第二导向机构单独设于所述镜头的光轴的另一侧，单独设置的所述第二导向机构在平行于光轴的方向上位于另两个所述第二导向机构之间。
具体地，所述镜头模组包括成对设置的对焦磁钢和对焦线圈以驱动所述对焦支架相对所述第一基座及所述第二基座沿镜头的光轴方向移动，所述镜头模组还包括成对设置的防抖磁钢和防抖线圈以驱动所述对焦支架及所述第一基座一并相对所述第二基座沿垂直于镜头光轴的方向移动，所述对焦磁钢固接于所述对焦支架的底侧，所述外壳包括顶板和底板，所述底板为磁性吸附件并与所述对焦磁钢相吸。
具体地，所述对焦线圈设于所述底板，所述防抖磁钢和所述防抖线圈中的一者固接于所述对焦支架的顶侧，另一者设于所述顶板。
具体地，所述对焦磁钢的数量为三个，其中两个所述对焦磁钢设于单独设置的所述第一导向机构的所述第二导向槽在光轴方向的两侧；另外一个所述对焦磁钢设于另两个所述第一导向机构的所述第二导向槽之间；所述防抖磁钢的数量为两个，两个所述防抖磁钢分别设于所述镜头的光轴的两侧。
具体地，所述对焦支架的底侧设有第一容纳槽，每个所述第一容纳槽中嵌设一个所述对焦磁钢，所述对焦支架的顶侧设有第二容纳槽，每个所述第二容纳槽中嵌设一个所述防抖磁钢。
具体地，所述第一弹性件设置于所述第一基座的垂直于所述镜头的光轴方向的侧面，所述第二弹性件设置于所述第一基座的平行于所述镜头的光轴方向的侧面。
 有益效果
本发明的有益效果在于：
通过叠设的对焦支架、第一基座和第二基座之间的相对移动可实现自动对焦和光学防抖，并通过最少数目的导向机构和最简单的结构实现稳定的镜头移动；另外由于只需要第一弹性件和第二弹性件分别在一个方向形变以提供一个方向的回复力，降低了镜头模组对弹性件的结构和性能要求。
 附图说明
图1为本发明镜头模组的立体视图；
图2为本发明镜头模组的内部视图；
图3为本发明镜头模组的内部分解视图；
图4为本发明镜头模组的内部局部视图；
图5为本发明镜头模组的内部局部分解视图；
图6为本发明镜头模组的内部局部分解视图；
图7为本发明镜头模组的内部局部分解视图；
图8为本发明镜头模组的内部局部分解视图；
图9为本发明镜头模组的内部局部分解视图；
图10为本发明镜头模组的内部局部分解视图；
图11为本发明镜头模组的内部局部剖切视图；
图12为第一基座的立体视图；
图13为第二基座的立体视图。
 本发明的实施方式
下面，结合附图以及具体实施方式，对本发明做进一步描述，需要说明的是，在不相冲突的前提下，以下描述的各实施例之间或各技术特征之间可以任意组合形成新的实施例。
见图1至图3，一种镜头模组，包括外壳、对焦支架3、第一基座4、第二基座5、镜头31、对焦磁钢33、对焦线圈111以及第一弹性件62。外壳包括顶板2和与顶板2间隔设置的底板1。对焦支架3、第一基座4和第二基座5从上至下依次叠置于底板1之上，镜头31安装于对焦支架3中。对焦磁钢33安装于对焦支架3，对焦线圈111安装于底板1上并用于与对焦磁钢33配合以驱动对焦支架3相对于第一基座4沿镜头31的光轴（图7中轴线A）的方向移动。
结合图3与图8，第一弹性件62设有一对，设置于镜头31的后侧（图3中方向F为前侧），即设置于第一基座4的垂直于镜头31的光轴方向的后侧面。第一弹性件62的一端与对焦支架3连接、另一端与第一基座4连接（见图4）。第一弹性件62只在对焦支架3相对第一基座4及第二基座5沿镜头31的光轴方向移动的过程中产生弹性形变。当镜头31需要对焦时，往对焦线圈111中通入电流，对焦线圈111产生变化的磁场，对焦磁钢33受洛仑磁力的作用在镜头31的光轴的方向移动，完成对焦，此时第一弹性件62变形积蓄弹性力，完成对焦后，断开通入对焦线圈111中的电流，对焦磁钢33不受力，并在第一弹性件62的弹性力的作用下回复到初始位置。
结合图4、图7、图8，镜头模组还包括第一滚珠41，对焦支架3的底侧设有三个沿平行于光轴方向设置的第一导向槽34。第一基座4的顶侧设有三个沿平行于光轴方向设置的第二导向槽43。第一导向槽34与第二导向槽43位置一一对应。第一滚珠41设于第一导向槽34和第二导向槽43之间，每一对应的第一导向槽34、第二导向槽43和第一滚珠41构成第一导向机构。第一导向槽34与第二导向槽43均沿平行于镜头31光轴的方向延伸，以引导第一滚珠41沿平行于镜头31光轴的方向移动。通过设置第一滚珠41降低了对焦支架3与第一基座4之间滑动的摩擦力，使得对焦支架3与第一基座4之间的相对移动更为灵敏。
结合图2、图3，底板1为磁性吸附件。这样，利用底板1对设置有对焦磁钢33的对焦支架3形成磁性吸附力，可以压紧第一滚珠41。同时，该底板可以增加BL值，有利于增大驱动力。
结合图4、图7、图8，第二导向槽43设有三个，其中两个第二导向槽43设于镜头31的光轴的一侧，另一个第二导向槽43单独设于镜头31的光轴的另一侧。单独设置的第二导向槽43在平行于光轴的方向上位于成对设置的两个第二导向槽43之间，每个第二导向槽43中设一个第一滚珠41。通过将单独设置的第二导向槽43在平行于光轴的方向上设置于成对设置的两个第二导向槽43之间，这样，三个第一滚珠41可以对对焦支架3形成稳定的三点支撑结构，而且，只需设三个第一滚珠41即可以对对焦支架3形成稳定的支撑，简化了结构，降低了镜头模组的复杂度。
结合图7、图8、图11、图12，在第一导向槽34和第二导向槽43中，其中一个第一导向槽34的横截面轮廓或者其中一个第二导向槽43的横截面轮廓为矩形，在本实施例中，其中一个第二导向槽43的横截面轮廓为矩形（参考图12），其余的横截面轮廓为梯形或者三角形。三角形和梯形结构中两个相对的倾斜面均与第一滚珠41相贴合，以限制第一滚珠41沿垂直于镜头31的光轴方向移动。通过设置其中一个第一导向槽34的横截面轮廓或者其中一个第二导向槽43的横截面轮廓为矩形，以便于降低对零件加工精度的要求。
结合图5、图6，对焦磁钢33安装于对焦支架3，对焦支架3在镜头31的左、右两侧（图3中方向N为右侧）均设有第一容纳槽35，且第一容纳槽35设置于对焦支架3的底侧。第一容纳槽35设有三个，每个第一容纳槽35中嵌设一个对焦磁钢33，对焦线圈111设有三个并与三个对焦磁钢33一一对应设置（结合图3）。见图6，其中两个对焦磁钢33设于镜头31的光轴的一侧，另外一个对焦磁钢33设于镜头31的光轴的另一侧，单独设置的对焦磁钢33在平行于光轴的方向上位于成对设置的两个对焦磁钢33之间。优选地，单独设置的对焦磁钢33所受的磁力等于成对设置的两个对焦磁钢33所受磁力之和，这样，镜头模组在自动对焦的过程中，可以避免单独设置的对焦磁钢33所受的磁力与成对设置的两个对焦磁钢33所受磁力之和不等，导致对焦支架3旋转，也即导致镜头31旋转，降低镜头31的成像质量。
结合图3、图4、图9、图10，镜头模组还包括第二基座5、防抖磁钢32、防抖线圈211以及第二弹性件61。第二基座5设于第一基座4的底侧。防抖磁钢32安装于对焦支架3，防抖线圈211安装于外壳的顶板1上并用于与防抖磁钢32配合以驱动对焦支架3相对于第二基座5沿垂直于光轴的方向移动，第二弹性件61的一端与第一基座4连接、另一端与第二基座5连接。
结合图4、图9、图10，镜头模组还包括第二滚珠51，第一基座4的底侧设有三个垂直于光轴方向而设的第三导向槽42，第二基座5的顶侧设有三个沿垂直于光轴方向而设的第四导向槽52（见图13），第三导向槽42与第四导向槽52位置一一对应。第二滚珠51设于第三导向槽42和第四导向槽52之间，每一对应的第三导向槽42、第四导向槽52和第二滚珠51构成第二导向机构。第三导向槽42与第四导向槽52均沿垂直于镜头31光轴的方向延伸，以引导第二滚珠51沿垂直于镜头31的光轴方向移动。
第三导向槽42设有三个，其中两个第四导向槽52设于镜头31的光轴的一侧，另一个第四导向槽52单独设于镜头31的光轴的另一侧，单独设置的第四导向槽52在平行于光轴的方向上位于成对设置的两个第四导向槽52之间，每个第四导向槽52中设一个第二滚珠51。结合图9、图10、图11、图13，在第三导向槽42和第四导向槽52中，其中一个第三导向槽42的横截面轮廓或者其中一个第四导向槽52的横截面轮廓为矩形，在本实施例中，其中一个第四导向槽52的横截面轮廓为矩形（参考图13），其余的横截面轮廓为梯形或者三角形。三角形和梯形结构中两个相对的倾斜面均与第二滚珠51相贴合，以限制第二滚珠51沿平行于镜头31的光轴方向移动。通过设置其中一个第三导向槽42的横截面轮廓或者其中一个第四导向槽52的横截面轮廓为矩形，以便于降低对零件加工精度的要求。
见图5，防抖磁钢32安装于对焦支架3，对焦支架3在镜头31的光轴的左、右两侧设有第二容纳槽36，防抖磁钢32设有两个，每个第二容纳槽36中嵌设一个防抖磁钢32，防抖线圈211设有两个并与两个防抖磁钢32一一对应设置（结合图3）。
第二弹性件61设有三个，三个第二弹性件61设于镜头31的左、右两侧，即设置于第一基座4的平行于镜头31的光轴方向的侧面。第二弹性件61的一端与第一基座4连接、另一端与第二基座5连接。第二弹性件61只在对焦支架3及第一基座4一并相对第二基座5沿垂直于镜头31光轴方向移动的过程中产生弹性形变。
镜头模组的工作原理为：
对焦线圈111用于与对焦磁钢33配合以驱动对焦支架3相对于第一基座4及第二基座5沿镜头31的光轴的方向移动（结合图4、图8，此过程中第一弹性件62产生形变，而第二弹性件61基本不产生形变），以使镜头31自动对焦。当对焦线圈111断电后，对焦支架3在第一弹性件62的弹性恢复力下复位。
防抖线圈211用于与防抖磁钢32配合以驱动对焦支架3与第一基座4一并相对于第二基座5沿垂直于光轴的方向移动（结合图4、图9，此过程中第二弹性件61产生形变，而第一弹性件62基本不产生形变），以使镜头31实现光学防抖。当防抖线圈211断电后，对焦支架3与第一基座4在第二弹性件61的弹性恢复力下复位。
见图2、图3，镜头模组还包括安装于顶板2的第一线路板21和安装于底板1的第二线路板11。对焦线圈111与第二线路板11电连接，防抖线圈211与第一线路板21电连接，使对焦线圈111与防抖线圈211能够上电，从而产生磁力。
上述实施方式仅为本发明的优选实施方式，不能以此来限定本发明保护的范围，本领域的技术人员在本发明的基础上所做的任何非实质性的变化及替换均属于本发明所要求保护的范围。

Claims (11)

  1. 一种镜头模组，其特征在于: 包括外壳以及收容于所述外壳的对焦支架、第一基座、第二基座、镜头，所述镜头安装于所述对焦支架中, 从上至下所述对焦支架、所述第一基座和所述第二基座依次叠置，所述对焦支架的底侧设有三个第一导向槽，所述第一基座的顶侧设有三个第二导向槽，所述第一导向槽与所述第二导向槽位置一一对应，所述第一导向槽与所述第二导向槽之间设有第一滚珠，每一对应的所述第一导向槽、所述第二导向槽和所述第一滚珠构成第一导向机构，所述第一基座的底侧设有三个第三导向槽，所述第二基座的顶侧设有三个第四导向槽，所述第三导向槽与所述第四导向槽位置一一对应，所述第三导向槽与所述第四导向槽之间设有第二滚珠，每一对应的所述第三导向槽、所述第四导向槽和所述第二滚珠构成第二导向机构，所述对焦支架可相对所述第一基座及所述第二基座沿镜头的光轴方向移动，所述对焦支架及所述第一基座可一并相对所述第二基座沿垂直于所述镜头光轴的方向移动。
  2. 根据权利要求1所述的镜头模组，其特征在于：所述对焦支架与所述第一基座之间连接有第一弹性件，所述第一弹性件只在所述对焦支架相对所述第一基座及所述第二基座沿所述镜头的光轴方向移动的过程中产生弹性形变，所述第一基座和所述第二基座之间连接有第二弹性件，所述第二弹性件只在对焦支架及所述第一基座一并相对所述第二基座沿垂直于所述镜头光轴的方向移动的过程中产生弹性形变。
  3. 根据权利要求1所述的镜头模组，其特征在于：所述第一导向槽与所述第二导向槽均沿平行于所述镜头光轴的方向延伸，以引导所述第一滚珠沿平行于所述镜头光轴的方向移动，所述第三导向槽与所述第四导向槽均沿垂直于所述镜头光轴的方向延伸，以引导所述第二滚珠沿垂直于所述镜头的光轴方向移动根据权利要求1所述的镜头模组，其特征在于：所述第一导向槽与所述第二导向槽均沿平行于所述镜头光轴的方向延伸，以引导所述第一滚珠沿平行于所述镜头光轴的方向移动，所述第三导向槽与所述第四导向槽均沿垂直于所述镜头光轴的方向延伸，以引导所述第二滚珠沿垂直于所述镜头的光轴方向移动。
  4. 根据权利要求1所述的镜头模组，其特征在于：在所述第一导向槽和所述第二导向槽中，其中一个所述第一导向槽在垂直于所述镜头的光轴方向的横截面轮廓，或者，其中一个所述第二导向槽在垂直于所述镜头的光轴方向的横截面轮廓为矩形，所述第一导向槽和所述第二导向槽其余的在垂直于所述镜头的光轴方向的横截面轮廓为梯形或者三角形以限制所述第一滚珠沿垂直于所述镜头的光轴方向移动。
  5. 根据权利要求1所述的镜头模组，其特征在于：在所述第三导向槽和所述第四导向槽中，一个所述第三导向槽在平行于所述镜头的光轴方向的横截面轮廓或者一个所述第四导向槽在平行于所述镜头的光轴方向的横截面轮廓为矩形，所述第三导向槽和所述第四导向槽其余的在平行于所述镜头的光轴方向的横截面轮廓为梯形或者三角形以限制所述第二滚珠沿平行于所述镜头的光轴方向移动。
  6. 根据权利要求1所述的镜头模组，其特征在于：两个所述第一导向机构设于所述镜头的光轴的一侧，另一个所述第一导向机构单独设于所述镜头的光轴的另一侧，单独设置的所述第一导向机构在平行于光轴的方向上位于另两个所述第一导向机构之间；两个所述第二导向机构设于所述镜头的光轴的一侧，另一个所述第二导向机构单独设于所述镜头的光轴的另一侧，单独设置的所述第二导向机构在平行于光轴的方向上位于另两个所述第二导向机构之间。
  7. 根据权利要求6所述的镜头模组，其特征在于：所述镜头模组包括成对设置的对焦磁钢和对焦线圈以驱动所述对焦支架相对所述第一基座及所述第二基座沿镜头的光轴方向移动，所述镜头模组还包括成对设置的防抖磁钢和防抖线圈以驱动所述对焦支架及所述第一基座一并相对所述第二基座沿垂直于镜头光轴的方向移动，所述对焦磁钢固接于所述对焦支架的底侧，所述外壳包括顶板和底板，所述底板为磁性吸附件并与所述对焦磁钢相吸。
  8. 根据权利要求7所述的镜头模组，其特征在于：所述对焦线圈设于所述底板，所述防抖磁钢和所述防抖线圈中的一者固接于所述对焦支架的顶侧，另一者设于所述顶板。
  9. 根据权利要求8所述的镜头模组，其特征在于：所述对焦磁钢的数量为三个，其中两个所述对焦磁钢设于单独设置的所述第一导向机构的所述第二导向槽在光轴方向的两侧；另外一个所述对焦磁钢设于另两个所述第一导向机构的所述第二导向槽之间；所述防抖磁钢的数量为两个，两个所述防抖磁钢分别设于所述镜头的光轴的两侧。
  10. 根据权利要求9所述的镜头模组，其特征在于：所述对焦支架的底侧设有第一容纳槽，每个所述第一容纳槽中嵌设一个所述对焦磁钢，所述对焦支架的顶侧设有第二容纳槽，每个所述第二容纳槽中嵌设一个所述防抖磁钢。
  11. 根据权利要求2所述的镜头模组，其特征在于：所述第一弹性件设置于所述第一基座的垂直于所述镜头的光轴方向的侧面，所述第二弹性件设置于所述第一基座的平行于所述镜头的光轴方向的侧面。
PCT/CN2019/115359 2019-10-15 2019-11-04 一种镜头模组 WO2021072820A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910980597.3A CN110703405A (zh) 2019-10-15 2019-10-15 一种镜头模组
CN201910980597.3 2019-10-15

Publications (1)

Publication Number Publication Date
WO2021072820A1 true WO2021072820A1 (zh) 2021-04-22

Family

ID=69199653

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/115359 WO2021072820A1 (zh) 2019-10-15 2019-11-04 一种镜头模组

Country Status (3)

Country Link
US (1) US11506859B2 (zh)
CN (1) CN110703405A (zh)
WO (1) WO2021072820A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113433760B (zh) * 2020-03-06 2023-04-07 北京小米移动软件有限公司 用于相机模组的致动器、相机装置及移动终端
CN111650715A (zh) * 2020-06-15 2020-09-11 瑞声通讯科技(常州)有限公司 镜头模组
CN111736296A (zh) * 2020-08-26 2020-10-02 瑞声通讯科技(常州)有限公司 镜头模组
CN211603677U (zh) * 2020-08-26 2020-09-29 瑞声通讯科技(常州)有限公司 镜头驱动装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100309322A1 (en) * 2009-06-03 2010-12-09 Samsung Electronics Co., Ltd. Optical image stabilizer for camera module assembly
CN103869445A (zh) * 2012-12-12 2014-06-18 三星电子株式会社 光学调节装置
CN104698721A (zh) * 2014-11-21 2015-06-10 瑞声声学科技(深圳)有限公司 镜头驱动装置
CN105652557A (zh) * 2014-11-28 2016-06-08 三星电机株式会社 相机模块
CN107924064A (zh) * 2016-07-07 2018-04-17 核心光电有限公司 用于折叠式光学装置的线性滚珠引导音圈电动机
CN108292079A (zh) * 2015-11-24 2018-07-17 富士胶片株式会社 图像抖动校正装置、透镜装置及摄像装置
CN110261986A (zh) * 2019-06-01 2019-09-20 瑞声科技(新加坡)有限公司 自动对焦镜头组件

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100309322A1 (en) * 2009-06-03 2010-12-09 Samsung Electronics Co., Ltd. Optical image stabilizer for camera module assembly
CN103869445A (zh) * 2012-12-12 2014-06-18 三星电子株式会社 光学调节装置
CN104698721A (zh) * 2014-11-21 2015-06-10 瑞声声学科技(深圳)有限公司 镜头驱动装置
CN105652557A (zh) * 2014-11-28 2016-06-08 三星电机株式会社 相机模块
CN108292079A (zh) * 2015-11-24 2018-07-17 富士胶片株式会社 图像抖动校正装置、透镜装置及摄像装置
CN107924064A (zh) * 2016-07-07 2018-04-17 核心光电有限公司 用于折叠式光学装置的线性滚珠引导音圈电动机
CN110261986A (zh) * 2019-06-01 2019-09-20 瑞声科技(新加坡)有限公司 自动对焦镜头组件

Also Published As

Publication number Publication date
CN110703405A (zh) 2020-01-17
US11506859B2 (en) 2022-11-22
US20210109309A1 (en) 2021-04-15

Similar Documents

Publication Publication Date Title
WO2021072820A1 (zh) 一种镜头模组
WO2021253520A1 (zh) 镜头模组
US20210109367A1 (en) Lens Module
KR101792328B1 (ko) 카메라 모듈
US8837929B2 (en) Imaging apparatus
TWI416240B (zh) 攝影模組
KR101525816B1 (ko) 상흔들림 보정 장치
KR20180071223A (ko) 카메라 모듈
KR20160121298A (ko) 렌즈 구동 장치 및 이를 포함하는 카메라 모듈
KR20130118817A (ko) 촬상 장치
JP2021103271A (ja) 手振れ補正機能付き撮像装置
KR20070057976A (ko) 촬상 장치
JP2019113878A (ja) レンズ鏡筒
JP2012032525A (ja) 像振れ補正装置及びカメラ
TWI446690B (zh) 致動器
KR20190137730A (ko) 렌즈 조립체
CN111929802A (zh) 镜头模组、电子设备及车载设备
KR20190087801A (ko) 렌즈 어셈블리 및 그를 포함하는 카메라 모듈
JP2012032526A (ja) 像振れ補正装置及びカメラ
JP5208691B2 (ja) 像ぶれ補正装置
JP7100777B1 (ja) 撮像装置及び携帯電子機器
WO2021253519A1 (zh) 镜头模组
US20230314829A1 (en) Camera device and portable electronice device
WO2020243867A1 (zh) 摄像模组和潜望式摄像头
CN114647131B (zh) 光学变焦摄像模组及相应的便携式终端设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19948943

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19948943

Country of ref document: EP

Kind code of ref document: A1