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WO2024138372A1 - Ensemble caméra et dispositif électronique - Google Patents

Ensemble caméra et dispositif électronique Download PDF

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Publication number
WO2024138372A1
WO2024138372A1 PCT/CN2022/142419 CN2022142419W WO2024138372A1 WO 2024138372 A1 WO2024138372 A1 WO 2024138372A1 CN 2022142419 W CN2022142419 W CN 2022142419W WO 2024138372 A1 WO2024138372 A1 WO 2024138372A1
Authority
WO
WIPO (PCT)
Prior art keywords
actuator
lens unit
rotation axis
support frame
camera assembly
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/CN2022/142419
Other languages
English (en)
Inventor
Atsushi Matsutani
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.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp 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 Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to PCT/CN2022/142419 priority Critical patent/WO2024138372A1/fr
Publication of WO2024138372A1 publication Critical patent/WO2024138372A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • 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

Definitions

  • Electronic devices such as smartphones and tablet terminals are widely used in our daily life.
  • many of the electronic devices are equipped with a camera assembly for capturing images.
  • Some of the electronic devices are portable and are thus easy to carry. Therefore, a user of the electronic device can easily take a picture of an object by using the camera assembly of the electronic device anytime, anywhere.
  • a 3-axis rotation gimbal OIS mechanism is employed to drive a lens unit including a CMOS image sensor (CIS) .
  • a cymbal OIS mechanism secures a large correction angle.
  • the 3-axis rotating cymbal OIS mechanism drives both the lens and the CIS, so there is no deterioration in peripheral resolution.
  • a camera assembly having an optical image stabilization (OIS) mechanism, includes:
  • a lens unit arranged in the support frame and configured to include a lens having an optical axis that extends in the vertical direction, the lens unit configured to be rotatable around a rolling point, where a first rotation axis perpendicular to the optical axis of the lens, a second rotation axis perpendicular to the optical axis and the first rotation axis, and a third rotation axis along the optical axis, are within the support frame;
  • a first actuator arranged between the support frame and a first side portion of the lens unit so as to be positioned between the first rotation axis and the second rotation axis, the first actuator configured to apply thrust to the lens unit in a first thrust direction tilted with respect to the optical axis, in order to roll the lens unit within the support frame;
  • a second actuator arranged between the support frame and a second side portion of the lens unit adjacent to the first side portion across the first rotation axis so as to be positioned between the first rotation axis and the second rotation axis, the second actuator configured to apply thrust to the lens unit in a second thrust direction tilted with respect to the optical axis, in order to roll the lens unit within the support frame;
  • a third actuator arranged between the support frame and a third side portion opposite to the first side portion of the lens unit so as to be positioned between the first rotation axis and the second rotation axis, the third actuator configured to apply thrust to the lens unit in a third thrust direction tilted with respect to the optical axis, in order to roll the lens unit within the support frame;
  • a fourth actuator arranged between the support frame and a fourth side portion opposite to the second side portion of the lens unit so as to be positioned between the first rotation axis and the second rotation axis, the fourth actuator configured to apply thrust to the lens unit in a fourth thrust direction tilted with respect to the optical axis, in order to roll the lens unit within the support frame;
  • FIG. 2 is a plan view of a second side of the electronic device according to the embodiment of the present disclosure.
  • FIG. 4A is a top view showing an example of a schematic configuration of a camera assembly of the electronic device viewed from above according to an embodiment of the present disclosure
  • FIG. 4C is a perspective view focusing on the configuration including the lens unit, actuators, and position sensing elements of the camera assembly shown in FIGS. 4A and 4B;
  • FIG. 5A is a diagram showing a state in which the first position detection element is positioned on a north pole side of a first magnet of the first actuator of the camera assembly shown in FIG. 4A;
  • FIG. 7 is a top view showing an example of a state in which the lens unit of the camera assembly shown in FIG. 4B is controlled to roll about a second rotation axis (pitch axis) G2;
  • FIG. 8 is a top view showing an example of a state in which the lens unit of the camera assembly shown in FIG. 4B is controlled to roll around the first rotation axis (yaw axis) G1 and the second rotation axis (pitch axis) G2;
  • FIG. 1 is a plan view of a first side of an electronic device 10 according to an embodiment of the present disclosure
  • FIG. 2 is a plan view of a second side of the electronic device 10 according to the embodiment of the present disclosure.
  • the first side may be referred to as a back side of the electronic device 10
  • the second side may be referred to as a front side of the electronic device 10.
  • the camera assembly 30 has an imaging sensor which converts a light which has passed a color filter to an electrical signal.
  • a signal value of the electrical signal depends on an amount of the light which has passed the color filter.
  • the electronic device 10 may have one or more camera assemblies.
  • FIG. 4A is a top view showing an example of a schematic configuration of a camera assembly of the electronic device viewed from above according to an embodiment of the present disclosure.
  • FIG. 4B is a top view showing an example of a schematic configuration from above of the camera assembly of the electronic device according to an embodiment of the present disclosure.
  • FIG. 4C is a perspective view focusing on the configuration including the lens unit, actuators, and position sensing elements of the camera assembly shown in FIGS. 4A and 4B.
  • FIG. 4D is a cross-sectional view showing an example of a cross-section along the first rotation axis, focusing on the configuration including the lens unit of the camera assembly shown in FIGS. 4A and 4B.
  • the rolling mechanisms B1, B2, B3 and B4 are configured to roll the lens unit LN within the support frame SF.
  • the rolling mechanisms B1, B2, B3, B4 are balls B1 to B4 arranged between the support frame SF and the sides of the lens unit LN.
  • the first actuator A1 includes a first coil CA and a first magnet MA.
  • the first magnet MA is a permanent magnet (e.g. two-pole magnetized magnet) .
  • the first coil CA and the first magnet MA constitute a linear motor.
  • the first actuator A1 outputs the first thrust in the first thrust direction when a drive current flows through the first coil CA.
  • the first magnet MA is arranged on the first side portion S1 of the lens unit LU, and the first coil CA is arranged on the support frame SF so as to face the first magnet MA.
  • the second actuator A2 is arranged between the support frame SF and a second side portion S2 of the lens unit LU adjacent to the first side portion S1 across the first rotation axis G1 so as to be positioned between the first rotation axis G1 and the second rotation axis G2, and configured to apply thrust to the lens unit LU in a second thrust direction tilted with respect to the optical axis LX, in order to roll the lens unit LU within the support frame SF.
  • the second actuator A2 is a linear motor.
  • the second actuator A2 includes a second coil CB and a second magnet MB.
  • the second magnet MB is a permanent magnet (e.g. two-pole magnetized magnet) .
  • the second coil CB and the second magnet MB constitute a linear motor.
  • the second actuator A2 outputs the second thrust in the second thrust direction when a drive current flows through the second coil CB.
  • the third magnet MC is arranged on the third side portion S3 of the lens unit LU, and the third coil CC is arranged on the support frame SF so as to face the third magnet MC.
  • the detection devices HA, HB, HC, HD are configured to detect and output information about relative positions of the lens unit LU with respect to the support frame SF at each position where the first to fourth actuators A1, A2, A3, A4 are arranged.
  • the first position detection element HA detects the relative position with respect to the first magnet MA (that is, the lens unit LU) by detecting the magnetism of the first magnet MA (magnetism of South pole and North pole) .
  • the second position detection element HB is arranged adjacent to the second coil CB and detects the relative position of the second magnet MB with respect to the second coil CB (the second position detection element HB) .
  • the second position detecting element HB is arranged on the support frame SF so as to be positioned at the center of the second coil CB.
  • the second position detecting element HB is the Hall element configured to detect the magnetism of the second magnet MB.
  • “Hall A” indicates the output of the first position detection element HA
  • “Hall B” indicates the output of the second position detection element HB
  • “Hall C” indicates the output of the third position detection element HC
  • “Hall D” indicates the output of the fourth position detection element HD.
  • “Hall X” indicates the output of a virtual position detection element corresponding to the first rotation axis G1
  • “Hall Y” indicates the output of a virtual position detection element corresponding to the second rotation axis G2
  • “Hall Z” indicates the output of a virtual position detection element corresponding to the third rotation axis G3.
  • the arrangement of the actuators and position detection elements of the electronic device 10 is not limited to this configuration.
  • FIG. 12 is a top view showing an example of a schematic configuration of the camera assembly of the electronic device according to the modified example.
  • the camera module and the electronic device according to the embodiment of the present disclosure can achieve to construct a 3-axis gimbal OIS mechanism with a simpler configuration.
  • the electronic device according to the present invention implements a three-rotational axis gimbal OIS mechanism with four actuators and position detection sensors.
  • first and second are used herein for purposes of description and are not intended to indicate or imply relative importance or significance or to imply the number of indicated technical features.
  • the feature defined with “first” and “second” may comprise one or more of this feature.
  • a plurality of means two or more than two, unless specified otherwise.
  • the terms “mounted” , “connected” , “coupled” and the like are used broadly, and may be, for example, fixed connections, detachable connections, or integral connections; may also be mechanical or electrical connections; may also be direct connections or indirect connections via intervening structures; may also be inner communications of two elements, which can be understood by those skilled in the art according to specific situations.
  • the logic and/or step described in other manners herein or shown in the flow chart, for example, a particular sequence table of executable instructions for realizing the logical function may be specifically achieved in any computer readable medium to be used by the instruction execution system, device or equipment (such as the system based on computers, the system comprising processors or other systems capable of obtaining the instruction from the instruction execution system, device and equipment and executing the instruction) , or to be used in combination with the instruction execution system, device and equipment.
  • the computer readable medium may be any device adaptive for including, storing, communicating, propagating or transferring programs to be used by or in combination with the instruction execution system, device or equipment.
  • each part of the present disclosure may be realized by the hardware, software, firmware or their combination.
  • a plurality of steps or methods may be realized by the software or firmware stored in the memory and executed by the appropriate instruction execution system.
  • the steps or methods may be realized by one or a combination of the following techniques known in the art: a discrete logic circuit having a logic gate circuit for realizing a logic function of a data signal, an application-specific integrated circuit having an appropriate combination logic gate circuit, a programmable gate array (PGA) , a field programmable gate array (FPGA) , etc.
  • the storage medium mentioned above may be read-only memories, magnetic disks, CD, etc.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Structure And Mechanism Of Cameras (AREA)
  • Accessories Of Cameras (AREA)
  • Studio Devices (AREA)

Abstract

Un ensemble caméra selon le mode de réalisation de la présente divulgation comprend : un cadre de support fixé au boîtier de l'ensemble caméra ; une unité de lentille disposée dans le cadre de support et configurée pour comprendre une lentille ayant un axe optique qui s'étend dans la direction verticale, l'unité de lentille étant configurée pour pouvoir tourner autour d'un point de roulement, un premier axe de rotation perpendiculaire à l'axe optique de la lentille, un deuxième axe de rotation perpendiculaire à l'axe optique et au premier axe de rotation, et un troisième axe de rotation le long de l'axe optique, étant à l'intérieur du cadre de support ; un premier actionneur ; un deuxième actionneur ; un troisième actionneur ; un quatrième actionneur ; et un dispositif de détection configuré pour détecter et délivrer des informations concernant des positions relatives de l'unité de lentille par rapport au cadre de support à chaque position où les premier à quatrième actionneurs sont agencés.
PCT/CN2022/142419 2022-12-27 2022-12-27 Ensemble caméra et dispositif électronique Ceased WO2024138372A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/142419 WO2024138372A1 (fr) 2022-12-27 2022-12-27 Ensemble caméra et dispositif électronique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/142419 WO2024138372A1 (fr) 2022-12-27 2022-12-27 Ensemble caméra et dispositif électronique

Publications (1)

Publication Number Publication Date
WO2024138372A1 true WO2024138372A1 (fr) 2024-07-04

Family

ID=91716160

Family Applications (1)

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PCT/CN2022/142419 Ceased WO2024138372A1 (fr) 2022-12-27 2022-12-27 Ensemble caméra et dispositif électronique

Country Status (1)

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WO (1) WO2024138372A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140055630A1 (en) * 2010-09-22 2014-02-27 Cambridge Mechatronics Limited Optical image stabilisation
US20180246341A1 (en) * 2017-02-27 2018-08-30 Mdpulse Co.,Ltd. Ois camera module favorable to dual camera arrangement and dual camera system including the ois camera modules
CN111357272A (zh) * 2017-11-17 2020-06-30 Lg伊诺特有限公司 相机模块
CN112631037A (zh) * 2019-09-21 2021-04-09 华为技术有限公司 防抖自动对焦装置及摄像设备
WO2022254220A1 (fr) * 2021-06-02 2022-12-08 Cambridge Mechatronics Limited Agencement d'actionneur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140055630A1 (en) * 2010-09-22 2014-02-27 Cambridge Mechatronics Limited Optical image stabilisation
US20180246341A1 (en) * 2017-02-27 2018-08-30 Mdpulse Co.,Ltd. Ois camera module favorable to dual camera arrangement and dual camera system including the ois camera modules
CN111357272A (zh) * 2017-11-17 2020-06-30 Lg伊诺特有限公司 相机模块
CN112631037A (zh) * 2019-09-21 2021-04-09 华为技术有限公司 防抖自动对焦装置及摄像设备
WO2022254220A1 (fr) * 2021-06-02 2022-12-08 Cambridge Mechatronics Limited Agencement d'actionneur

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