WO2022000836A1 - 一种相机模块、具有拍摄功能的电子设备 - Google Patents

一种相机模块、具有拍摄功能的电子设备 Download PDF

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Publication number
WO2022000836A1
WO2022000836A1 PCT/CN2020/118352 CN2020118352W WO2022000836A1 WO 2022000836 A1 WO2022000836 A1 WO 2022000836A1 CN 2020118352 W CN2020118352 W CN 2020118352W WO 2022000836 A1 WO2022000836 A1 WO 2022000836A1
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WO
WIPO (PCT)
Prior art keywords
lens
magnetic
camera module
lens barrel
driving assembly
Prior art date
Application number
PCT/CN2020/118352
Other languages
English (en)
French (fr)
Inventor
马蒂凯南·贾尔诺
林图洛蒂·托米
Original Assignee
瑞声声学科技(深圳)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
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Application filed by 瑞声声学科技(深圳)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2022000836A1 publication Critical patent/WO2022000836A1/zh

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Classifications

    • 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
    • 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
    • G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
    • 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
    • G02B27/0018—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for preventing ghost images
    • 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
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/56—Accessories
    • G03B17/565—Optical accessories, e.g. converters for close-up photography, tele-convertors, wide-angle convertors
    • 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
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/02—Focusing arrangements of general interest for cameras, projectors or printers moving lens along baseboard
    • 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
    • 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
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • 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
    • H04N23/67—Focus control based on electronic image sensor signals
    • 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
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0046—Movement of one or more optical elements for zooming
    • 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
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0053—Driving means for the movement of one or more optical element
    • G03B2205/0084—Driving means for the movement of one or more optical element using other types of actuators
    • 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
    • G03B2217/00—Details of cameras or camera bodies; Accessories therefor
    • G03B2217/24—Details of cameras or camera bodies; Accessories therefor with means for separately producing marks on the film
    • G03B2217/242—Details of the marking device
    • G03B2217/244—Magnetic devices

Definitions

  • the present invention relates to the technical field of electronic devices, and in particular, to a camera module and an electronic device with a photographing function.
  • the lens module is usually also provided with a driving component, and the driving component is used to drive the lens to extend and retract, so as to realize zooming and improve the shooting effect.
  • the present invention provides a camera module and an electronic device with a shooting function.
  • the camera module can conveniently realize zooming and can prevent light from entering the lens barrel.
  • a first aspect of the embodiments of the present invention provides a camera module, the camera module includes: a lens assembly, the lens assembly includes a lens barrel and a lens, at least a part of the lens is installed in the lens barrel; a driving assembly, the The driving assembly is used to drive the lens to move along the optical axis; wherein, the driving assembly is provided with a magnetic part, the lens is provided with a magnetic matching part, and the magnetic part and the magnetic matching part are located at the side of the lens barrel.
  • the two ends of the side wall along the thickness direction can be connected under the action of magnetic attraction, so that the lens can move along the optical axis of the lens under the driving of the driving component.
  • no through holes are provided on the side wall of the lens barrel.
  • it can prevent light from entering the lens barrel through the through hole and affect the normal operation of the lens, thereby improving the lifespan and shooting effect of the camera module.
  • the part of the side wall of the lens barrel between the magnetic part and the magnetic matching part is made of non-metallic material.
  • the non-metallic part of the lens barrel does not affect the magnetic attraction force between the magnetic part and the magnetic matching part, that is, the magnetic part and the magnetic matching part can attract each other through the side wall of the lens barrel, so as to realize The connection between the lens and the drive assembly.
  • the thickness of the side wall of the lens barrel located between the magnetic part and the magnetic matching part is 10 mm ⁇ 50 mm.
  • both the magnetic part and the magnetic matching part are magnets, and the magnetism of the ends of the two close to each other is opposite.
  • the magnetic part and the magnetic matching part are electromagnets, and after electrification, the ends of the two close to each other are magnetically opposite.
  • the magnetic matching portion is made of metal and can be attracted by the magnetic portion.
  • the projection of the magnetic portion at least partially coincides with the projection of the magnetic matching portion.
  • the magnetic attraction force between the magnetic part and the magnetic matching part is relatively large, thereby improving the reliability of the connection between the lens and the driving assembly, thereby improving the accuracy and reliability of zooming of the camera module.
  • the lens includes a lens and a clamping part for clamping the lens, and at least part of the clamping part is located in the lens barrel; the clamping part is made of non-metallic material , and can move in the lens barrel, and the magnetic matching part is mounted on the clamping part.
  • the driving assembly further includes a motor and a transmission part, the transmission part is used for connecting with the lens, and the magnetic part is mounted on the transmission part.
  • the motor can drive the transmission part to move in a direction parallel to the optical axis of the lens.
  • the motor has an output shaft, and the axial direction of the output shaft is parallel to the optical axis direction of the lens; the transmission part is threadedly connected to the output shaft, and the output shaft rotates during the rotation process. , the transmission part can be driven to move in a direction parallel to the optical axis of the lens.
  • a second aspect of an embodiment of the present invention provides an electronic device with a shooting function, the electronic device comprising: a casing; a camera module, where the camera module is the camera module described above; wherein, the camera module is installed in the the casing.
  • the lens and the drive assembly can be connected by the magnetic attraction between the magnetic part and the magnetic matching part. After the connection, the lens can be driven during the movement of the drive assembly. Movement within the lens barrel to achieve zoom.
  • the connection structure between the lens and the driving assembly is simple, and the side wall of the lens barrel does not need to be provided with a through hole, thereby preventing the risk of light entering the lens barrel and affecting the normal operation of the lens due to the setting of the through hole, and improving the camera module’s reliability. Life and shooting results.
  • FIG. 1 is a schematic structural diagram of a camera module provided by the present invention in a specific embodiment.
  • FIG. 2 is a front view of FIG. 1 .
  • FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 2 .
  • an existing camera module usually includes a lens assembly and a driving assembly, wherein the lens assembly includes a lens barrel and a lens, the lens is located in the lens barrel, and during the shooting process, the lens is driven to move in the direction of the optical axis to achieve zooming.
  • a through hole can be provided on the side wall of the lens barrel, and the drive assembly can be inserted into the lens barrel through the through hole to connect with the lens, and when the drive assembly moves, it can drive the lens to move.
  • the drive assembly is connected to the lens through a through hole disposed on the side wall of the lens barrel, which has the risk of light leakage, which may affect the optical characteristics of the lens and affect the normal operation and shooting effect of the camera module.
  • an embodiment of the present invention provides a camera module as shown in FIGS. 1 to 3 .
  • the camera module can be used in an electronic device with a shooting function, and the electronic device with a shooting function can be a camera, a mobile phone, Tablets, desktops, laptops, handhelds, notebooks, ultra-mobile PCs personal computer, UMPC), netbooks, as well as cellular phones, personal digital assistants (PDAs), augmented reality (augmented reality, AR) devices, virtual reality (virtual) reality, VR) equipment, artificial intelligence (artificial intelligence, AI) equipment, wearable equipment, vehicle-mounted equipment, smart home equipment and/or smart city equipment, the embodiment of the present invention does not limit the specific type of the electronic equipment, as long as a camera module is included.
  • the camera module may specifically include a lens assembly and a driving assembly 1, wherein the lens assembly includes a lens barrel 2 and a lens 3, and the lens 3 is installed in the inner cavity of the lens barrel 2, and can move in the inner cavity of the lens barrel 2; the drive assembly 1 is used to drive the lens 3 to move along the optical axis, the optical axis is the optical axis of the lens 31 in the lens 3, and the optical axis of the lens 3 refers to the movement of the lens 3 through the lens 3 the center line.
  • the lens assembly includes a lens barrel 2 and a lens 3
  • the lens 3 is installed in the inner cavity of the lens barrel 2, and can move in the inner cavity of the lens barrel 2
  • the drive assembly 1 is used to drive the lens 3 to move along the optical axis
  • the optical axis is the optical axis of the lens 31 in the lens 3
  • the optical axis of the lens 3 refers to the movement of the lens 3 through the lens 3 the center line.
  • the driving assembly 1 is provided with a magnetic portion 11
  • the lens 3 is provided with a magnetic matching portion 14 , wherein the magnetic portion 11 and the magnetic matching portion 14 are located on the side wall of the lens barrel 2 along the thickness direction
  • the two ends of the lens 3 can be connected under the action of magnetic attraction, so that the lens 3 can move along the optical axis of the lens 3 under the driving of the driving assembly 1 .
  • the lens 3 and the driving assembly 1 can be connected by the magnetic attraction between the magnetic part 11 and the magnetic matching part 14. After the connection, the driving assembly 1 moves During the process, the lens 3 can be driven to move in the lens barrel 2, thereby realizing zooming.
  • the connection structure between the lens 3 and the drive assembly 1 is simple, and the side wall of the lens barrel 2 does not need to be provided with through holes, thereby preventing the risk of light entering the lens barrel 2 and affecting the normal operation of the lens 3 due to the through holes. , to improve the life and shooting effect of the camera module.
  • the magnetic part 11 and the magnetic matching part 14 do not need to be in direct contact, so the side wall of the lens barrel 2 does not need to be in direct contact.
  • the through hole is provided to ensure the integrity of the side wall of the lens barrel 2 and prevent light from irradiating the lens 3 in the lens barrel 2 through the through hole.
  • the part of the side wall of the lens barrel 2 between the magnetic part 11 and the magnetic matching part 14 is made of non-metallic material, such as plastic. and other polymer materials.
  • the non-metallic part of the lens barrel 2 will not affect the magnetic attraction force between the magnetic part 11 and the magnetic matching part 14 , that is, the magnetic part 11 and the magnetic matching part 14 can be separated from the side of the lens barrel 2 The walls attract each other to achieve the connection between the lens 3 and the drive assembly 1 .
  • all the side walls of the lens barrel 2 can be made of non-metallic materials.
  • the lens barrel 2 can be formed by integral injection molding or 3D printing, which has the advantage of convenient processing, and the non-metallic material is
  • the lens barrel 2 is light in weight, which can reduce the overall weight of the camera module.
  • the material of the lens barrel 2 may be polyvinyl chloride (Polyvinyl chloride, PVC) or the like.
  • the thickness of the side wall of the non-metallic material in the lens barrel 2 is 10 mm ⁇ 50 mm.
  • the thickness of the side wall of the non-metallic material is 20 mm, 30 mm, or the like.
  • the thickness of the side wall of the non-metallic material of the lens barrel 2 should neither be too large nor too small. Since the magnetic part 11 and the magnetic matching part 14 are attracted to each other by the side wall of the non-metallic material, when the thickness of the side wall of the non-metallic material is too large, the magnetic attraction force between the magnetic part 11 and the magnetic matching part 14 is relatively high. is small, which affects the reliability of the connection between the lens 3 and the drive assembly 1, and further affects the zooming accuracy of the camera module. When the thickness of the non-metallic sidewall is too small, the strength and rigidity of the lens barrel 2 are small, which affects the overall strength and rigidity of the camera module and affects the normal operation of the lens 3 . Therefore, the thickness of the sidewall of the non-metallic material can be reasonably set in consideration of the above two factors.
  • the sidewalls at each position of the lens barrel 2 may be made of non-metallic material, and at the same time, the thicknesses of the sidewalls at each position may be the same.
  • the magnetic part 11 and the magnetic matching part 14 are both magnets, and the magnetic properties of the ends of the two close to each other are opposite.
  • the magnetic part 11 and the magnetic matching part 14 are both permanent magnets, and they can attract each other.
  • the end of the magnetic part 11 close to the magnetic matching part 14 is the N pole
  • the end of the magnetic matching part 14 close to the magnetic part 11 is the S pole, so as to realize the connection between the magnetic part 11 and the magnetic matching part 14, and then realize the lens 3 and the drive Connections between components 1.
  • the magnetic part 11 and the magnetic matching part 14 are both electromagnets, that is, they have magnetism after being energized. At the same time, after the magnetic part 11 and the magnetic matching part 14 are energized, the ends of the magnetic part 11 and the magnetic matching part 14 close to each other have opposite magnetic properties, so that the two can attract each other.
  • one of the magnetic part 11 and the magnetic matching part 14 is a magnet, and the other is a metal that can be attracted by the magnet.
  • the magnetic part 11 is a magnet
  • the magnetic matching part 14 is an iron block (or a nickel block or a cobalt block), and the iron block can be attracted by the magnet, so as to realize the connection between the magnetic part 11 and the magnetic matching part 14, and then realize the lens 3 Connection to drive assembly 1.
  • one of the magnetic portion 11 and the magnetic matching portion 14 is an electromagnet, and the other is a metal that can be attracted by the electromagnet.
  • the magnetic portion 11 and the magnetic matching portion 14 are arranged correspondingly, that is, along the radial direction of the lens barrel 2 , the magnetic portion 11 At least part of the projection of the magnetic mating portion 14 coincides with at least part of the projection of the magnetic mating portion 14 .
  • the magnetic attraction force between the two is relatively large, thereby improving the connection reliability between the lens 3 and the driving assembly 1, thereby improving the accuracy of zooming of the camera module sturdiness and reliability.
  • the projection of the magnetic portion 11 may coincide with the projection of the magnetic matching portion 14 .
  • the magnetic force between the magnetic portion 11 and the magnetic matching portion 14 can be further improved. It can reduce the volume of the magnetic part 11 and the magnetic matching part 14, thereby reducing the volume of the camera module.
  • the lens 3 may include a lens 31 and a clamping part 32 for clamping the lens 31 .
  • the clamping part 32 clamps the lens 31 , it is at least partially located in the lens barrel 2 and can move in the lens barrel 2 .
  • the present invention does not limit the shape and size of the inner cavity of the lens barrel 2, nor does it limit the overall shape and structural form of the lens 3.
  • the lens may include a lens group composed of one or more lenses 31, and a single lens The lens or lens group can be first accommodated in a fixing member, and then clamped by the clamping part 32 to form the lens 3 .
  • the shape and structure of the clamping portion 32 are also not limited, and the assembling method of the clamping portion 32 and the lens 31 is also not limited.
  • the clamping part 32 is made of non-metallic material, and the magnetic matching part 14 is mounted on the non-metallic part of the clamping part 32 .
  • the drive assembly 1 may further include a motor 12 and a transmission part 13 , the motor 12 is connected with the transmission part 13 , and the transmission part 13 is used for connecting with the lens 3 , so as to pass the motor 12 and the transmission part 13 drive the lens 3 to move along the optical axis.
  • the above-mentioned magnetic part 11 is mounted on the transmission part 13 .
  • the motor 12 has an output shaft 121 , the output shaft 121 can rotate, and the transmission part 13 is connected with the output shaft 121 .
  • the driving assembly 1 works, the output shaft 121 of the motor 12 rotates, and the transmission part 13 is used to convert the rotational movement of the output shaft 121 into a linear movement parallel to the optical axis, so that the magnetic part 11 is driven by the transmission part 13 to move parallel to the optical axis.
  • the axis moves linearly, and the magnetic attraction between the magnetic part 11 and the magnetic matching part 14 drives the clamping part 32 to move in a direction parallel to the optical axis, so that the lens 31 moves along the optical axis to realize zooming.
  • the transmission part 13 in this embodiment may be a linear motion mechanism, for example, a screw-slider mechanism, a rack-and-pinion mechanism, or the like.
  • the axial direction of the output shaft 121 is parallel to the optical axis direction of the lens 3, and the output shaft 121 is provided with an external thread 121a.
  • the transmission part 13 is provided with an internal thread, so that the output shaft 121 and the transmission part are provided with an internal thread. Threaded connection between 13.
  • the transmission part 13 can be driven to move linearly along the axial direction of the output shaft 121 , so that the rotational movement of the output shaft 121 is converted into a linear movement by the transmission part 13 .
  • the transmission part 13 may include a first connection part 131 and a second connection part 132 , wherein the first connection part 131 is used for installing the above-mentioned magnetic part 11 , and the second connection part 132 is provided There are internal threads so as to be threadedly connected with the output shaft 121 .
  • the transmission part 13 may be an L-shaped structure, that is, the first connection part 131 and the second connection part 132 are perpendicular to each other, and the second connection part 132 is perpendicular to the output shaft 121 , so as to facilitate the To realize the threaded connection of the two.
  • a part of the output shaft 121 can extend into the space enclosed by the first connection part 131 and the second connection part 132 .
  • the motor 12 in the embodiment of the present invention may specifically be a stepping motor.
  • the stepping motor is a motor that converts an electrical second pulse signal into a corresponding angular displacement or linear displacement. Therefore, it can be adjusted by changing the parameters of the stepping motor.
  • the size of the angular displacement of the stepping motor can adjust the distance of the linear movement of the transmission part 13 according to the needs of the user, so as to realize the adjustment of the focal length of the lens 3 .

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)
  • Studio Devices (AREA)

Abstract

本发明涉及相机模块、具有拍摄功能的电子设备，相机模块包括：镜头组件，包括镜筒和镜头，镜头的至少部分安装于镜筒内；驱动组件，用于驱动镜头沿光轴运动；其中，驱动组件设置有磁性部，镜头设置有磁性配合部，磁性部与磁性配合部位于镜筒的侧壁沿厚度方向的两端，且二者能够在磁吸力作用下连接，以使镜头能够在驱动组件的驱动下沿镜头的光轴运动。镜头与驱动组件之间能够通过磁性部和磁性配合部之间的磁吸力连接，连接后，驱动组件运动的过程中，能够带动镜头在镜筒内运动，从而实现变焦。镜头与驱动组件的连接结构简单，镜筒的侧壁无需设置通孔，防止因设置通孔而导致光线进入镜筒内影响镜头正常工作的风险，提高相机模块的寿命和拍摄效果。

Description

一种相机模块、具有拍摄功能的电子设备 技术领域
本发明涉及电子设备技术领域，尤其涉及一种相机模块、具有拍摄功能的电子设备。
 背景技术
目前，常用的数字相机、具有拍摄功能的手机、笔记本电脑、平板电脑等手持式电子设备中，通常具有镜头模块，通过镜头模块实现拍摄功能。在拍摄过程中，镜头模块通常还设置有驱动部件，该驱动部件用于驱动镜头伸缩，从而实现变焦，提高拍摄效果。
 技术问题
本发明提供了一种相机模块、具有拍摄功能的电子设备，该相机模块能够方便地实现变焦，且能防止光线进入镜筒内。
 技术解决方案
本发明实施例第一方面提供一种相机模块，所述相机模块包括：镜头组件，所述镜头组件包括镜筒和镜头，所述镜头的至少部分安装于所述镜筒内；驱动组件，所述驱动组件用于驱动所述镜头沿光轴运动；其中，所述驱动组件设置有磁性部，所述镜头设置有磁性配合部，所述磁性部与所述磁性配合部位于所述镜筒的侧壁沿厚度方向的两端，且二者能够在磁吸力作用下连接，以使所述镜头能够在所述驱动组件的驱动下沿所述镜头的光轴运动。
在一种可能的设计中，所述镜筒的侧壁无通孔设置。当镜筒的侧壁无通孔时，能够避免光线经通孔进入镜筒内影响镜头的正常工作，提高相机模块的寿命和拍摄效果。
在一种可能的设计中，所述镜筒的侧壁位于所述磁性部和所述磁性配合部之间的部分为非金属材质。本实施例中，该镜筒的非金属材质的部分不会影响磁性部和磁性配合部之间的磁吸力，即使得磁性部与磁性配合部能够隔着镜筒的侧壁相互吸引，以实现镜头与驱动组件之间的连接。
在一种可能的设计中，位于所述磁性部和所述磁性配合部之间的所述镜筒的侧壁的厚度为10mm~50mm。
在一种可能的设计中，所述磁性部和所述磁性配合部均为磁铁，且二者相互靠近的一端的磁性相反。
在一种可能的设计中，所述磁性部和所述磁性配合部为电磁铁，且通电后，二者相互靠近的一端磁性相反。
在一种可能的设计中，所述磁性配合部为金属材质，且能够被所述磁性部吸引。
在一种可能的设计中，沿所述镜筒的径向，所述磁性部的投影与所述磁性配合部的投影至少部分重合。本实施例中，磁性部与磁性配合部之间的磁吸力较大，从而提高镜头与驱动组件之间的连接可靠性，进而提高相机模块变焦的准确性和可靠性。
在一种可能的设计中，所述镜头包括镜片和用于夹持所述镜片的夹持部，所述夹持部的至少部分位于所述镜筒内；所述夹持部为非金属材质，且能够在所述镜筒内运动，所述磁性配合部安装于所述夹持部。
在一种可能的设计中，所述驱动组件还包括电机和传动部，所述传动部用于与所述镜头连接，所述磁性部安装于所述传动部。
在所述电机的驱动作用下，所述电机能够带动所述传动部沿平行于所述镜头的光轴的方向运动。
在一种可能的设计中，所述电机具有输出轴，所述输出轴的轴向与所述镜头的光轴方向平行;所述传动部与所述输出轴螺纹连接，所述输出轴转动过程中，能够驱动所述传动部沿平行于所述镜头的光轴的方向运动。
本发明实施例第二方面提供一种具有拍摄功能的电子设备，所述电子设备包括:壳体;相机模块，所述相机模块为以上所述的相机模块;其中，所述相机模块安装于所述壳体。
 有益效果
本发明实施例中，通过设置磁性部和磁性配合部，使得镜头与驱动组件之间能够通过磁性部和磁性配合部之间的磁吸力连接，连接后，驱动组件运动的过程中，能够带动镜头在镜筒内运动，从而实现变焦。该实施例中，镜头与驱动组件的连接结构简单，且镜筒的侧壁可以无需设置通孔，从而防止因设置通孔而导致光线进入镜筒内影响镜头正常工作的风险，提高相机模块的寿命和拍摄效果。
 附图说明
图1为本发明所提供相机模块在一种具体实施例中的结构示意图。
图2为图1的正视图。
图3为图2的A-A向剖视图。
附图标记:1-驱动组件;11-磁性部;12-电机;121-输出轴;121a-外螺纹;13-传动部;131-第一连接部;132-第二连接部;14-磁性配合部;2-镜筒;3-镜头;31-镜片; 32-夹持部。
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明的实施例，并与说明书一起用于解释本发明的原理。
 本发明的实施方式
为了更好的理解本发明的技术方案，下面结合附图对本发明实施例进行详细描述。
应当明确，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
在本发明实施例中使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本发明。在本发明实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
应当理解，本文中使用的术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
需要注意的是，本发明实施例所描述的“上”、“下”、“左”、“右”等方位词是以附图所示的角度来进行描述的，不应理解为对本发明实施例的限定。此外，在上下文中，还需要理解的是，当提到一个元件连接在另一个元件“上”或者“下”时，其不仅能够直接连接在另一个元件“上”或者“下”，也可以通过中间元件间接连接在另一个元件“上”或者“下”。
目前，现有的相机模块通常包括镜头组件和驱动组件，其中，镜头组件包括镜筒和镜头，镜头位于镜筒内，且拍摄过程中，通过驱动镜头沿光轴的方向运动来实现变焦。具体地，为了驱动镜头运动，可以在镜筒的侧壁设置通孔，并将驱动组件经该通孔伸入镜筒内与镜头连接，当驱动组件动作时，能够带动镜头运动。但是，上述方案中，驱动组件与镜头通过设置于镜筒侧壁的通孔连接，该通孔存在漏光的风险，从而存在影响镜头的光学特性的风险，影响相机模块的正常工作和拍摄效果。
为了解决该技术问题，本发明实施例提供一种如图1~3所示的相机模块，该相机模块可以用于具有拍摄功能的电子设备，该具有拍摄功能的电子设备可以为相机、手机、平板电脑、桌面型计算机、膝上型计算机、手持计算机、笔记本电脑、超级移动个人计算机（ultra-mobile personal computer，UMPC）、上网本，以及蜂窝电话、个人数字助理（personal digital assistant，PDA）、增强现实（augmented reality，AR）设备、虚拟现实（virtual reality，VR）设备、人工智能(artificial intelligence, AI)设备、可穿戴式设备、车载设备、智能家居设备和/或智慧城市设备，本发明实施例对该电子设备的具体类型不作特殊限制，只要包括相机模块即可。
具体地，如图1和图2所示，该相机模块具体可以包括镜头组件和驱动组件1，其中，该镜头组件包括镜筒2和镜头3，该镜头3安装于镜筒2的内腔，并能够在镜筒2的内腔内运动；驱动组件1用于驱动镜头3沿光轴运动，该光轴为镜头3中的镜片31的光轴，镜头3的光轴指的是通过镜头3的中心的线。
更具体地，如图3所示，该驱动组件1设置有磁性部11，镜头3设置有磁性配合部14，其中，该磁性部11与磁性配合部14位于镜筒2的侧壁沿厚度方向的两端，且二者能够在磁吸力作用下连接，以使镜头3能够在驱动组件1的驱动下沿镜头3的光轴运动。
本发明实施例中，通过设置磁性部11和磁性配合部14，使得镜头3与驱动组件1之间能够通过磁性部11和磁性配合部14之间的磁吸力连接，连接后，驱动组件1运动的过程中，能够带动镜头3在镜筒2内运动，从而实现变焦。该实施例中，镜头3与驱动组件1的连接结构简单，且镜筒2的侧壁可以无需设置通孔，从而防止因设置通孔而导致光线进入镜筒2内影响镜头3正常工作的风险，提高相机模块的寿命和拍摄效果。
基于此，当镜头3与驱动组件1之间通过磁性部11和磁性配合部14的磁吸力连接时，该磁性部11与磁性配合部14无需直接接触，因此，该镜筒2的侧壁无需设置通孔，从而保证镜筒2的侧壁的完整性，并避免光线经通孔照射到镜筒2内的镜头3。
同时，沿镜筒2的径向（垂直于镜头3的光轴的方向），该镜筒2的侧壁位于磁性部11和磁性配合部14之间的部分为非金属材质，例如可以为塑料等高分子材质。
本实施例中，该镜筒2的非金属材质的部分不会影响磁性部11和磁性配合部14之间的磁吸力，即使得磁性部11与磁性配合部14能够隔着镜筒2的侧壁相互吸引，以实现镜头3与驱动组件1之间的连接。
在一种具体实施例中，该镜筒2的全部侧壁均可以为非金属材质，此时，镜筒2可以通过一体注塑成型或3D打印成型，具有加工方便的优点，且非金属材质的镜筒2重量较小，能够减小相机模块的整体重量。另外，为了提高相机模块的整体强度，该镜筒2的材质可以为聚氯乙烯（Polyvinyl chloride，PVC）等材质。
具体地，该镜筒2中非金属材质的侧壁的厚度为10mm~50mm。例如，该非金属材质的侧壁厚度为20mm、30mm等。
本实施例中，如图3所示，镜筒2的非金属材质的侧壁的厚度不宜过大也不宜过小。由于磁性部11与磁性配合部14隔着该非金属材质的侧壁相互吸引，当该非金属材质的侧壁的厚度过大时，导致磁性部11与磁性配合部14之间的磁吸力较小，影响镜头3与驱动组件1之间的连接可靠性，进而影响相机模块变焦的准确性。当该非金属侧壁的厚度过小时，导致镜筒2的强度和刚度较小，影响相机模块整体的强度和刚度，并影响镜头3的正常工作。因此，可以综合考虑上述两方面的因素合理设置非金属材质的侧壁的厚度。
可选地，该镜筒2各位置的侧壁可以均为非金属材质，同时，各位置的侧壁的厚度可以相同。
在第一种具体实施例中，该磁性部11和磁性配合部14均为磁铁，且二者相互靠近的一端的磁性相反。其中，该磁性部11和磁性配合部14均为永磁体，且二者能够相互吸引。例如，磁性部11靠近磁性配合部14的一端为N极，则磁性配合部14靠近磁性部11的一端为S极，从而实现磁性部11和磁性配合部14的连接，进而实现镜头3与驱动组件1之间的连接。
在第二种具体实施例中，该磁性部11和磁性配合部14均为电磁铁，即二者通电后具有磁性。同时，该磁性部11与磁性配合部14通电后，二者相互靠近的一端磁性相反，从而使得二者能够相互吸引。
在第三种具体实施例中，该磁性部11和磁性配合部14中，一者为磁体，另一者为能够被磁体吸引的金属。例如，该磁性部11为磁铁，磁性配合部14为铁块（或镍块或钴块），该铁块能够被磁铁吸引，从而实现磁性部11与磁性配合部14的连接，进而实现镜头3与驱动组件1之间的连接。
在第四种具体实施例中，该磁性部11和磁性配合部14中，一者为电磁体，另一者为能被该电磁体吸引的金属。
在一种具体实施例中，沿镜筒2的径向（垂直于镜头3的光轴的方向），磁性部11和磁性配合部14对应设置，即沿镜筒2的径向，磁性部11的投影的至少部分与磁性配合部14的投影的至少部分重合。
本实施例中，当磁性部11与磁性配合部14对应设置时，二者之间的磁吸力较大，从而提高镜头3与驱动组件1之间的连接可靠性，进而提高相机模块变焦的准确性和可靠性。
具体地，如图3所示，沿镜筒2的径向，磁性部11的投影可以与磁性配合部14的投影重合，此时，能够进一步提高磁性部11与磁性配合部14之间的磁吸力，并能够减小磁性部11和磁性配合部14的体积，进而减小相机模块的体积。
在一种可能的设计中，如图3所示，镜头3可以包括镜片31和用于夹持镜片31的夹持部32。夹持部32夹持镜片31后，其至少部分位于镜筒2内，并能够在镜筒2内运动。其中，本发明对镜筒2的内腔的形状和尺寸不作限制，对镜头3的整体形状和结构形态也不作限定，例如，该镜头可以包括一个或多个镜片31组成的镜片群，且单一镜片或镜片群可以先容设在一个固定件内，然后通过夹持部32夹持形成镜头3。该夹持部32的形状和结构形态也不作限制，且夹持部32与镜头31的组装方式也不作限制。
其中，该夹持部32的至少部分为非金属材质，上述磁性配合部14安装于该夹持部32的非金属部分。
以上各实施例中，如图1和图2所示，该驱动组件1还可以包括电机12和传动部13，电机12与传动部13连接，传动部13用于与镜头3连接，从而通过电机12和传动部13驱动镜头3沿光轴运动。其中，上述磁性部11安装于该传动部13。
本实施例中，该电机12具有输出轴121，该输出轴121能够转动，且传动部13与输出轴121连接。该驱动组件1工作时，电机12的输出轴121转动，传动部13用于将输出轴121的转动运动转化为平行于光轴的直线运动，从而通过传动部13带动磁性部11沿平行于光轴的方向直线运动，进而通过磁性部11与磁性配合部14之间的磁吸力带动夹持部32沿平行于光轴的方向运动，以使镜头31沿光轴运动，实现变焦。因此，本实施例中的传动部13具体可以为直线运动机构，例如，可以为丝杆滑块机构、齿轮齿条机构等。
具体地，该输出轴121的轴向与镜头3的光轴方向平行，且该输出轴121设置有外螺纹121a，相应地，该传动部13设置有内螺纹，从而使得输出轴121与传动部13之间螺纹连接。输出轴121转动的过程中，能够带动传动部13沿输出轴121的轴向直线运动，从而通过传动部13将输出轴121的转动运动转化为直线运动。
更具体地，如图1所示，该传动部13可以包括第一连接部131和第二连接部132，其中，该第一连接部131用于安装上述磁性部11，第二连接部132设置有内螺纹，从而与输出轴121螺纹连接。在图1所示的实施例中，该传动部13具体可以为L型结构，即第一连接部131与第二连接部132相互垂直，且第二连接部132与输出轴121垂直，从而便于实现二者的螺纹连接。另外，传动部13相对于输出轴121沿轴向运动的过程中，输出轴121的一部分能够伸入第一连接部131与第二连接部132围成的空间内。
本发明实施例中的电机12具体可以为步进电机，步进电机是一种将电秒冲信号转换为相应的角位移或线位移的电动机，因此，能够通过改变步进电机的参数来调整步进电机角位移的大小，从而能够根据用户的需求调整传动部13直线运动的距离，实现镜头3焦距的调整。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种相机模块，其特征在于，所述相机模块包括：
    镜头组件，所述镜头组件包括镜筒和镜头，所述镜头的至少部分安装于所述镜筒内；
    驱动组件，所述驱动组件用于驱动所述镜头沿光轴运动；
    其中，所述驱动组件设置有磁性部，所述镜头设置有磁性配合部，所述磁性部与所述磁性配合部位于所述镜筒的侧壁沿厚度方向的两端，且二者能够在磁吸力作用下连接，以使所述镜头能够在所述驱动组件的驱动下沿所述镜头的光轴运动。
  2. 根据权利要求1所述的相机模块，其特征在于，所述镜筒的侧壁无通孔设置。
  3. 根据权利要求1所述的相机模块，其特征在于，所述镜筒的侧壁位于所述磁性部和所述磁性配合部之间的部分为非金属材质。
  4. 根据权利要求3所述的相机模块，其特征在于，位于所述磁性部和所述磁性配合部之间的所述镜筒的侧壁的厚度为10mm~50mm。
  5. 根据权利要求1所述的相机模块，其特征在于，所述磁性部和所述磁性配合部均为磁铁，且二者相互靠近的一端的磁性相反。
  6. 根据权利要求1所述的相机模块，其特征在于，所述磁性部和所述磁性配合部为电磁铁，且通电后，二者相互靠近的一端磁性相反。
  7. 根据权利要求1所述的相机模块，其特征在于，所述磁性配合部为金属材质，且能够被所述磁性部吸引。
  8. 根据权利要求1~7中任一项所述的相机模块，其特征在于，所述镜头包括镜片和用于夹持所述镜片的夹持部，所述夹持部的至少部分位于所述镜筒内；
    所述夹持部为非金属材质，且能够在所述镜筒内运动，所述磁性配合部安装于所述夹持部。
  9. 根据权利要求1~7中任一项所述的相机模块，其特征在于，所述驱动组件还包括电机和传动部，所述传动部用于与所述镜头连接，所述磁性部安装于所述传动部；
    在所述电机的驱动作用下，所述电机能够带动所述传动部沿平行于所述镜头的光轴的方向运动。
  10. 具有拍摄功能的电子设备，其特征在于，所述电子设备包括：
    壳体；
    相机模块，所述相机模块为权利要求1~9中任一项所述的相机模块；
    其中，所述相机模块安装于所述壳体。
PCT/CN2020/118352 2020-06-30 2020-09-28 一种相机模块、具有拍摄功能的电子设备 WO2022000836A1 (zh)

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