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WO2018135732A1 - Appareil de commande de réflecteur pour une stabilisation optique de l'image (ois) à l'aide d'un fil - Google Patents

Appareil de commande de réflecteur pour une stabilisation optique de l'image (ois) à l'aide d'un fil Download PDF

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Publication number
WO2018135732A1
WO2018135732A1 PCT/KR2017/012460 KR2017012460W WO2018135732A1 WO 2018135732 A1 WO2018135732 A1 WO 2018135732A1 KR 2017012460 W KR2017012460 W KR 2017012460W WO 2018135732 A1 WO2018135732 A1 WO 2018135732A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire
support frame
ois
sma
reflectometer
Prior art date
Application number
PCT/KR2017/012460
Other languages
English (en)
Korean (ko)
Inventor
김희승
Original Assignee
자화전자 주식회사
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 자화전자 주식회사 filed Critical 자화전자 주식회사
Publication of WO2018135732A1 publication Critical patent/WO2018135732A1/fr

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Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B3/00Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/10Power-operated focusing
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/64Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
    • G02B27/646Imaging 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
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/64Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B13/00Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32Means for focusing
    • G03B13/34Power focusing
    • G03B13/36Autofocus systems
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B17/00Details of cameras or camera bodies; Accessories therefor
    • G03B17/02Bodies
    • G03B17/17Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B3/00Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/04Focusing arrangements of general interest for cameras, projectors or printers adjusting position of image plane without moving lens
    • G03B3/06Focusing arrangements of general interest for cameras, projectors or printers adjusting position of image plane without moving lens using movable reflectors to alter length of light path
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B5/00Adjustment of optical system relative to image or object surface other than for focusing
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B2205/00Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0007Movement of one or more optical elements for control of motion blur
    • G03B2205/003Movement of one or more optical elements for control of motion blur by a prism with variable angle or the like
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B2205/00Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0053Driving means for the movement of one or more optical element
    • G03B2205/0076Driving means for the movement of one or more optical element using shape memory alloys

Definitions

  • the present invention relates to a reflector drive device, and more particularly, to a reflector drive device for an OIS that drives a reflectometer using a shape memory alloy wire to improve driving precision of image stabilization.
  • a mobile terminal such as a smart phone in addition to the basic functions for communication.
  • Typical examples are camera modules that implement functions such as auto focus (AF) and image stabilization (OIS) .
  • AF auto focus
  • OIS image stabilization
  • voice recognition, fingerprint recognition, and iris recognition functions for authentication or security are implemented. And the like are mounted on portable terminals, and in recent years, attempts have been made to mount a zoom lens in which a plurality of lens groups are assembled so that the focal length can be variably adjusted.
  • the zoom lens has a structure in which a plurality of lenses or lens groups are arranged in the optical axis direction, which is a direction in which light is introduced, unlike the general lens, and thus its length is longer in the optical axis length direction than the general lens.
  • an image pickup device such as a charged-coupled device (CCD) and a complementary metal-oxide semiconductor (CMOS) like other lenses, and is then generated as image data through subsequent processing.
  • CCD charged-coupled device
  • CMOS complementary metal-oxide semiconductor
  • the portable terminal When the zoom lens is installed in a direction perpendicular to the main board of the portable terminal, that is, in a direction perpendicular to the main board like other general lenses, the portable terminal has a space equal to the height of the zoom lens (length in the optical axis direction). Since it should be, there is a problem that it is difficult to optimize the essential characteristics of the device miniaturization and weight reduction of the portable terminal.
  • the conventional image stabilization (OIS) method is a method for moving the lens or the lens module itself in two directions (X-axis, Y-axis direction) on a plane perpendicular to the optical axis direction (Z axis), this method
  • OIS image stabilization
  • the present invention has been made to solve the above-mentioned problems in the above-mentioned background, and coupled to the shape memory alloy wire having a characteristic that shrinks by application of current to the reflector or a support frame on which the reflector is mounted and the shape memory alloy wire It is an object of the present invention to provide an OIS reflectometer driving apparatus that can more easily and accurately implement driving of an OIS by changing a posture of a reflectometer or the like by using an operation characteristic of the.
  • OIS reflector drive device using the wire of the present invention for achieving the above object is a shape memory alloy (SMA) wire is provided with two or more at different positions; A reflectometer installed in the support frame and changing the path of the light introduced through the opening to enter the lens; A base frame to which the SMA wire is coupled; An elastic body provided between the support frame and the base frame to elastically support the support frame; And it may be configured to include a circuit board for supplying a current to the SMA wire.
  • SMA shape memory alloy
  • the SMA wire of the present invention may have a bent shape so that one end and the other end is located in the same direction, in this case, the support frame of the present invention includes a coupling portion to which the bent portion of the SMA wire is coupled Can be configured.
  • the SMA wire of the present invention is preferably configured to be provided in four positions corresponding to each other based on the vertical and horizontal directions.
  • the base frame and the support frame may further include a pivot support located in the center portion facing each other, in this case the pivot support of the present invention is formed in the shape of a sphere desirable.
  • the elastic body of the present invention may be provided in the center portion of the support frame and the base frame, in this case, the pivot support of the present invention may be provided in the hollow portion of the center of the elastic body.
  • OIS reflector driving apparatus using a wire is provided with two or more SMA wire at different positions, the reflectometer for changing the path of the light introduced through the opening to enter the lens; A base frame to which the SMA wire is coupled; An elastic body provided between the counter clock and the base frame to elastically support the reflectometer; And it may include a circuit board for supplying a current to the SMA wire.
  • the uniaxial driving or biaxial driving for the image stabilization is performed in the reflectometer, but the posture or position of the reflectometer is changed using the operating characteristics of the shape memory alloy wire.
  • the reflectometer is configured to be physically supported by the pivot support and the elastic body, thereby creating an effect capable of more accurately and accurately inducing image stabilization according to the operating characteristics of the shape memory alloy wire. Can be.
  • the present invention can minimize or simplify the coupling structure between the parts or components to perform the assembly process more quickly and accurately can lower the defective rate and further improve the manufacturing efficiency.
  • FIG. 1 is a view showing the overall appearance of a drive device and an actuator to which the drive device is applied according to an embodiment of the present invention
  • FIG. 2 and 3 is an exploded coupling view showing a detailed configuration of a drive device according to an embodiment of the present invention
  • FIG. 4 is a view showing a detailed configuration of the support frame and the base frame according to an embodiment of the present invention
  • FIG. 5 is a view for explaining the operating relationship of the Y-axis OIS of the present invention implemented through the rotational movement of the reflectometer
  • FIG. 6 is a view for explaining the operating relationship of the X-axis OIS of the present invention implemented through the rotational movement of the reflectometer.
  • FIG. 1 is a view showing the overall appearance of an OIS reflector drive device 100 (hereinafter referred to as a 'drive device') and an actuator 1000 to which the drive device is applied using a wire of a preferred embodiment of the present invention. .
  • the driving device 100 of the present invention may be implemented as a single device, as well as a lens driving module including a unit for performing axial driving of either the AF driving or the OIS driving of the lens (zoom lens) 210. It may be implemented as a part of one actuator 1000 in a form coupled to the upper portion of the 200.
  • the driving device 100 of the present invention may perform OIS driving in two directions (X-axis and Y-axis) perpendicular to the optical axis.
  • the lens driving module 200 performs only AF driving. It can also be configured.
  • the lens 210 may be not only a single lens, but also a plurality of lenses, a lens group, or a zoom lens in which an optical member such as a prism and a mirror may be included therein.
  • the lens 210 may have a shape extending in the vertical length direction (Z-axis direction).
  • the light path of the subject is not directly introduced into the lens 210, but the light path is changed through the reflectometer (120 of FIG. 2) provided in the driving device 100 of the present invention (refraction, reflection). Etc.) and then flows into the lens 210.
  • the path of light coming from the outer world is Z1
  • the path of light entering Z1 is reflected or reflected by the reflectometer 120.
  • Z is referred to as the optical axis to the optical axis direction.
  • an image pickup device such as a CCD or a CMOS, may be provided below the lens 210 based on the optical axis direction to convert the light signal into an electrical signal.
  • the filter may be provided together.
  • the present invention avoids the conventional OIS method of moving the lens itself in two directions perpendicular to the optical axis Z, that is, in the X-axis direction (first direction) and Y-axis direction (second direction). And an OIS for at least one of the first direction and the second direction to be implemented in the reflectometer 120 for changing the path of light.
  • the driving apparatus 100 may additionally include a lens mounting space 10.
  • a lens having an optical characteristic different from that of the zoom lens 210 may be mounted.
  • the lens mounting space 10 may be implemented without a shape.
  • FIGS. 2 and 3 are exploded coupling diagram showing the detailed configuration of the drive device 100 according to an embodiment of the present invention.
  • the driving device 100 of the present invention includes a support frame 110, a reflectometer 120, a base frame 130, an elastic body 140, a circuit board 150, and an opening. It may be configured to include a housing 160, a shape memory alloy (SMA) wire 170 and the pivot support 180 is provided with (161).
  • SMA shape memory alloy
  • the axis corresponding to the vertical axis direction of the lens 210 is defined as an optical axis (Z axis), and two axes on a plane perpendicular to the optical axis (Z axis) are X. It is defined by axis and Y axis.
  • the reflectometer 120 of the present invention receives the path of the incoming light.
  • the light is introduced into the lens 210 by changing the direction Z (refraction or reflection).
  • the reflectometer 120 may be one selected from a mirror or a prism, or a combination thereof, and may be implemented as various members that may change light introduced from the outside into the optical axis direction.
  • the present invention is configured such that the light of the subject is introduced into the lens 210 after the path is refracted by the reflectometer 120, so that the lens 210 itself does not need to be installed in the thickness direction of the mobile terminal. Therefore, even when the zoom lens is mounted on the portable terminal, the thickness of the portable terminal may not be increased, thereby minimizing the size of the portable terminal.
  • the support frame 110 of the present invention is a configuration in which the reflectometer 120 is installed, the shape memory alloy (SMA) wire 170 is provided.
  • SMA shape memory alloy
  • the position or posture of the support frame 110 is changed by the driving characteristics of the SMA wire 170, the position or posture of the reflectometer 120 installed in the support frame 110 is changed and accordingly the lens ( The path of the light flowing into the side 210 is changed or corrected to implement driving of the OIS.
  • Base frame 130 of the present invention is a configuration that the SMA wire 170 is coupled, the elastic body 140 is connected to the support frame 110.
  • the base frame 130 of the present invention elastically supports the reflector 120 mounted on the support frame 110, that is, the support frame 110, and physically according to shrinkage, extension, etc. of the SMA wire 170. The change is transmitted to the support frame 110.
  • the circuit board 150 of the present invention is electrically connected to an end portion of the SMA wire 170 described above and performs a function of supplying current to the SMA wire 170.
  • the shape memory alloy wire 170 is configured to change the posture or the position of the support frame 110 with respect to the base frame 130.
  • the length of the shape memory alloy wire contracts due to a thermal change generated when an appropriate size current is applied. Corresponds to the wire with characteristics.
  • SMA wire 170 may be a titanium-nickel alloy or a copper-zinc-aluminum alloy (20 to 25% zinc, 4 to 6% aluminum) and the like composed of titanium and nickel in a 1: 1 ratio.
  • the elastic body 140 is partially contracted (compressed) to an appropriate size, and the support frame 110 and the base frame ( 130).
  • the SMA wire 170 Since the SMA wire 170 has a characteristic of shrinking when a current is applied and restoring to its original length when the current supply is interrupted, when the SMA wire 170 is installed on only one side of the support frame 110 in a negative (-) direction or The support frame 110 moves in only one of the positive (+) directions.
  • the SMA wires 170 may be provided in two or more different positions, but the opposite directions may be positioned relative to the center of the support frame 110. Do.
  • the circuit board 150 supplies current to the SMA wire 170 through the coupling hole 151.
  • the circuit board 150 has the same end as the other end of the SMA wire 170 in order to more effectively implement the current application and the closed circuit configuration. It is preferable to configure to be located in the direction.
  • the SMA wire 170 of the present invention is preferably configured to have a bent shape in the center, the support frame 110, the coupling portion 111 is coupled to the bent portion of the SMA wire 170 4) is preferably provided.
  • the Hall sensor 155 provided at a position corresponding to the sensing magnet 115 provided in the support frame 110 is a position of the sensing magnet 115 using a hall effect, that is, a reflectometer
  • the position of the sensor 120 is sensed, and a driver driver (not shown) uses the sensed position value to feedback control the appropriate current to be applied to the SMA wire 170, so that shaking of the hand shake is corrected.
  • the hall sensor 155 and the sensing magnet 115 are configured to sense the position of the reflectometer 120, and include a sensor for sensing a position using a light signal according to an embodiment of the reflectometer 120.
  • a sensor for sensing a position using a light signal according to an embodiment of the reflectometer 120.
  • various types of sensors that can sense the position can replace the Hall sensor.
  • the support frame 110 or the housing 160 is further provided with stoppers 113 and 163 to guide or restrict the movement of the support frame 110 by the contraction, extension, etc. of the SMA wire 170. desirable.
  • the elastic body 140 of the present invention is provided at the center portion of the support frame 110 and the base frame 130 facing each other, and may be implemented as a single spring such as a spiral shape. It can also be implemented in multiple ways with Spring.
  • the present invention may further include a pivot support 180 positioned at a center portion of the base frame 130 and the support frame 110 facing each other.
  • the pivot support 180 is configured to provide a reference position at which the attitude of the support frame 110 is changed with respect to the base frame 130, and the pivot support 180 includes the support frame 110.
  • the posture can be induced to be changed by contraction and extension of the SMA wire 170 while maintaining a state in which the SMA wire 170 is in contact with each other.
  • the hole 132 that constrains the movement of the pivot support 180 may include a base frame 130 or a support frame (eg, a shape in which a portion of the pivot support 180 is accommodated so that the pivot support 180 does not escape to the outside). It is preferably provided to 110).
  • the pivot support 180 may be implemented in various shapes such as a pillar shape and a horn shape, but may be implemented in the shape of a ball to provide a minimum frictional force by point-contact and rolling itself. Most preferred.
  • the base frame 130 elastically supports the support frame 110 as well as to improve the efficiency of posture or position control of the support frame 110.
  • the center frame 130 of the base frame 130, the pivot support 180 is preferably configured to be provided in the hollow portion of the elastic body 140.
  • the reflectometer 120 may form a shape freely by injection, etc.
  • the configuration and shape necessary for itself is realized, so that the reflectometer 120 itself is elastically supported by the base frame 130 and the SMA wire 170 is connected to the reflectometer 120 itself to configure the reflectometer ( 120) It is a matter of course that the embodiment that controls itself or the position itself is possible.
  • FIG. 4 is a diagram illustrating a detailed configuration of the support frame 110 and the base frame 130 according to an embodiment of the present invention.
  • two or more SMA wires 170 are provided.
  • These four SMA wires 170 are all connected by the support frame 110 and the coupling portion 111, etc., the support frame 110 is elastically supported by the elastic body 140 and at the same time implemented in the shape of a ball (ball)
  • the pivot point 180 is supported by the reference point of the posture change.
  • the SMA wire 170 is implemented as four (170-1a, 170-1b, 170-2a, 170-2b) at positions corresponding or symmetrical with respect to the horizontal and vertical directions, the SMA wire is applied with current.
  • Combination selection of 170 enables more precise implementation of OIS driving in the X- and Y-axis directions.
  • the base frame 130 of the present invention includes one or more wire coupling portions 131, and a portion of the SMA wire 170 may be coupled by the wire coupling portions 131. have.
  • FIG. 5 is a view for explaining the operating relationship of the Y-axis OIS of the present invention implemented through the rotational movement of the reflectometer.
  • the path of the light flowing into the image pickup device varies according to the posture or angle of the reflectometer. As illustrated in FIG. 5B, when no current is applied to the SMA wire 170, the light signal flows to a predetermined reference position.
  • the SMA wires 170-1a and 170-2a of the SMA wires 170 are contracted by a length that is functionally proportional to the magnitude of the applied current.
  • the posture or position of the support frame 110, that is, the reflectometer 120 is changed in a direction corresponding to a clockwise direction (see FIG. 5) by the contraction.
  • FIG. 6 is a view for explaining the operating relationship of the X-axis OIS of the present invention implemented through the rotational movement of the reflectometer.
  • the SMA wires 170-1a and 170-1b of the SMA wire 170 are functional to the magnitude of the applied current.
  • the contraction is proportional to the length, and by this contraction, the support frame 110, that is, the reflectometer 120, changes its posture or position in a direction corresponding to the clockwise direction (see FIG. 6).
  • the current is applied only to the SMA wires 170-2a and 170-2b and the other SMA wires 170-1a and 170-1b are not applied as shown in FIG. 6 (c). Otherwise, the SMA wires 170-2a and 170-2b to which the current is applied are contracted by a length that is functionally proportional to the magnitude of the applied current, and by this contraction, the support frame 110, that is, the reflectometer 120 Its posture or position changes in a direction corresponding to the counterclockwise direction (see FIG. 6).
  • 5 and 6 are only diagrams independently explaining the Y-axis direction correction movement and the X-axis direction correction movement, respectively, to explain the basic operation relationship of the present invention, the actual OIS drive using the wire according to the present invention, each axis direction Of course, it is implemented to adaptively respond to the actual shaking by applying a combination of driving by.

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

Abstract

Un appareil pour commander un réflecteur pour une stabilisation optique de l'image (OIS) à l'aide d'un fil selon la présente invention comprend : un cadre de support dans lequel deux ou plusieurs alliage à mémoire de forme (AMF) des fils sont disposés à différentes positions; un réflecteur installé dans le cadre de support et changeant le trajet de lumière entrant à travers une ouverture de façon à permettre à la lumière d'être incidente sur une lentille; un cadre de base auquel les fils AMF sont couplés; un corps élastique disposé entre le cadre de support et le cadre de base de façon à supporter élastiquement le cadre de support; et une carte de circuit imprimé pour fournir du courant aux fils AMF.
PCT/KR2017/012460 2017-01-23 2017-11-06 Appareil de commande de réflecteur pour une stabilisation optique de l'image (ois) à l'aide d'un fil WO2018135732A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170010594A KR102226523B1 (ko) 2017-01-23 2017-01-23 와이어를 이용한 ois용 반사계 구동장치
KR10-2017-0010594 2017-01-23

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WO2018135732A1 true WO2018135732A1 (fr) 2018-07-26

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WO (1) WO2018135732A1 (fr)

Cited By (4)

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Publication number Priority date Publication date Assignee Title
WO2020243859A1 (fr) * 2019-06-01 2020-12-10 瑞声光学解决方案私人有限公司 Ensemble lentille de mise au point automatique et son procédé de mise au point automatique
GB2574974B (en) * 2017-03-02 2022-11-16 Cambridge Mechatronics Ltd Shape memory alloy actuator assembly
EP4249969A3 (fr) * 2018-12-27 2024-01-10 Tdk Taiwan Corp. Actionneur pour un élément optique
EP4102267A4 (fr) * 2020-02-06 2024-03-06 LG Innotek Co., Ltd. Actionneur à prisme

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KR102125086B1 (ko) * 2018-08-28 2020-06-19 삼성전기주식회사 카메라 모듈
KR102428596B1 (ko) 2020-11-16 2022-08-03 삼성전기주식회사 광로변경모듈 및 이를 구비하는 카메라 모듈
US12072549B2 (en) 2021-04-28 2024-08-27 Samsung Electro-Mechanics Co., Ltd. Reflective module assembly and camera module comprising the same
WO2023249284A1 (fr) * 2022-06-20 2023-12-28 엘지이노텍 주식회사 Dispositif d'entraînement d'élément réfléchissant, dispositif de caméra et instrument optique

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GB2574974B (en) * 2017-03-02 2022-11-16 Cambridge Mechatronics Ltd Shape memory alloy actuator assembly
US11953701B2 (en) 2017-03-02 2024-04-09 Cambridge Mechatronics Limited Shape memory alloy actuator assembly for optical image stabilisation
EP4249969A3 (fr) * 2018-12-27 2024-01-10 Tdk Taiwan Corp. Actionneur pour un élément optique
WO2020243859A1 (fr) * 2019-06-01 2020-12-10 瑞声光学解决方案私人有限公司 Ensemble lentille de mise au point automatique et son procédé de mise au point automatique
EP4102267A4 (fr) * 2020-02-06 2024-03-06 LG Innotek Co., Ltd. Actionneur à prisme

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