WO2013172001A1 - Actionneur de lentille - Google Patents

Actionneur de lentille Download PDF

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Publication number
WO2013172001A1
WO2013172001A1 PCT/JP2013/002978 JP2013002978W WO2013172001A1 WO 2013172001 A1 WO2013172001 A1 WO 2013172001A1 JP 2013002978 W JP2013002978 W JP 2013002978W WO 2013172001 A1 WO2013172001 A1 WO 2013172001A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil
ois
wiring board
lens actuator
movable unit
Prior art date
Application number
PCT/JP2013/002978
Other languages
English (en)
Japanese (ja)
Inventor
生嶋　君弥
田中　秀和
Original Assignee
パナソニック株式会社
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
Priority claimed from JP2012112164A external-priority patent/JP2015143722A/ja
Priority claimed from JP2012116195A external-priority patent/JP2015143726A/ja
Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Publication of WO2013172001A1 publication Critical patent/WO2013172001A1/fr

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Classifications

    • 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
    • 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
    • G03B3/10—Power-operated focusing
    • 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
    • G03B2205/0007—Movement of one or more optical elements for control of motion blur
    • G03B2205/0015—Movement of one or more optical elements for control of motion blur by displacing one or more optical elements normal to the optical axis
    • 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
    • G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils

Definitions

  • the present invention relates to a lens actuator mainly used for a camera or a mobile phone.
  • the lens actuator 20 includes a movable unit 1, coil holders 2A to 2D, a lower cover 3, four wires 4, and an upper cover 5. Then, when camera shake or the like occurs, the movable unit 1 swings and suppresses the disturbance of the image and the image.
  • the movable unit 1 includes a magnet holder 11, an autofocus unit 12 in which a lens moves up and down, and an imaging body 13.
  • the autofocus unit 12 is housed inside the magnet holder 11.
  • восем ⁇ magnets 14 are fixed to the front and rear, left and right inner surfaces of the autofocus unit 12 in two vertical rows. Further, four magnets 15 slightly larger than the magnets 14 are fixed to the front, rear, left and right outer surfaces of the magnet holder 11.
  • the autofocus unit 12 is provided with a circular hole 12A in which a lens is fixed.
  • a lens holder 19 for holding a lens is provided in the autofocus unit 12, and an autofocus coil (hereinafter referred to as an AF coil) 16 is wound around the outer periphery of the lens holder 19 in two upper and lower stages.
  • the AF coil 16 faces the magnet 14. When a current flows through the AF coil 16, an electromagnetic force is generated between the AF coil 16 and the magnet 14, and the lens holder 19 moves up and down with respect to the magnet holder 11.
  • the imaging element 17 is disposed on the upper surface of the imaging body 13.
  • the imaging device 17 is a semiconductor device such as a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal Oxide Semiconductor) image sensor.
  • the image sensor 17 is disposed below the center of the circular hole 12A, and the image or image captured by the image sensor 17 is focused by moving the lens holder 19 up and down.
  • the wire 4 is erected at the four corners of the lower cover 3.
  • the wires 4 are connected to the four corners of the upper surface of the magnet holder 11.
  • the movable unit 1 is swingably held on the lower cover 3.
  • coil holders 2A to 2D are arranged on the front, rear, left and right of the movable unit 1, and an OIS (Optical Image Stabilization) coil 18 is arranged in a state of facing the magnet 15.
  • the lens actuator 20 can perform shake correction control (for example, Patent Document 1).
  • the present invention is a lens actuator that can stably supply current to an OIS coil.
  • the lens actuator according to the present invention includes a movable unit, a plurality of wires, a plurality of OIS coils, a holding unit, a wiring board, and a base.
  • the movable unit has a magnet.
  • One ends of the plurality of wires are connected to the movable unit.
  • Several OIS coils are arrange
  • a plurality of OIS coils are fixed to the holding portion. At least one end of a plurality of OIS coils is connected to the wiring board.
  • the base is disposed on the opposite side of the movable unit with respect to the wiring board, and has a pedestal portion and a plurality of electrodes fixed to the pedestal portion.
  • the plurality of electrodes are respectively connected to at least one of the plurality of wires, and each have a connection portion connected to the wiring board.
  • the plurality of wires and the plurality of electrodes constitute an energization path for supplying power from the wiring board to the movable unit.
  • FIG. 1 is an exploded perspective view of a lens actuator according to Embodiment 1 of the present invention.
  • FIG. 2 is a sectional view of the lens actuator shown in FIG.
  • FIG. 3 is a detailed exploded perspective view of the lens actuator shown in FIG.
  • FIG. 4 is a perspective view of a base in the lens actuator shown in FIG.
  • FIG. 5 is a perspective view of electrodes in the lens actuator shown in FIG.
  • FIG. 6 is a cross-sectional view of the main part of the lens actuator shown in FIG.
  • FIG. 7 is an exploded perspective view of the lens actuator according to the second embodiment of the present invention.
  • FIG. 8 is a cross-sectional view of the lens actuator shown in FIG.
  • FIG. 9 is a detailed exploded perspective view of the lens actuator shown in FIG. FIG.
  • FIG. 10 is an exploded perspective view of a coil unit used in the lens actuator shown in FIG.
  • FIG. 11 is a perspective view of a base in the lens actuator shown in FIG.
  • FIG. 12 is a perspective view of electrodes in the lens actuator shown in FIG.
  • FIG. 13 is a perspective view of a main part of the lens actuator shown in FIG.
  • FIG. 14 is a perspective view in which the coil body used in the lens actuator according to the second embodiment of the present invention is half-rotated in the vertical direction.
  • FIG. 15 is a perspective view showing a state in which the coil body and the flexible printed wiring board shown in FIG. 14 are combined.
  • FIG. 16 is an exploded perspective view of the lens actuator according to the third embodiment of the present invention.
  • FIG. 11 is a perspective view of a base in the lens actuator shown in FIG.
  • FIG. 12 is a perspective view of electrodes in the lens actuator shown in FIG.
  • FIG. 13 is a perspective view of a main part of the lens actuator shown in FIG.
  • FIG. 17 is a perspective view of a coil body used in the lens actuator shown in FIG. 18 is a perspective view of a flexible printed wiring board used in the lens actuator shown in FIG.
  • FIG. 19 is a perspective sectional view of a conventional lens actuator. 20 is an exploded perspective view of the lens actuator shown in FIG.
  • FIG. 1 and 2 are an exploded perspective view and a sectional view of a lens actuator 100 according to Embodiment 1 of the present invention.
  • the lens actuator 100 includes a movable unit 31, a coil unit 32, wires 33A to 33D, and an upper cover.
  • the width in the left-right direction is, for example, 5 mm to 20 mm
  • the depth in the front-rear direction is, for example, 5 mm to 20 mm
  • the height in the vertical direction is, for example, 2 mm to 10 mm.
  • the width in the left-right direction and the depth in the front-rear direction are approximately the same size. These dimensions are the same for the lens actuators in the second and third embodiments.
  • FIG. 3 is a detailed exploded perspective view of the lens actuator 100.
  • the movable unit 31 includes a lens holder 41, a magnet holder 42, a lower spring 43, a pair of upper springs 44, a lower plate 45, and magnets 46A to 46D.
  • the lens holder 41 is housed inside the side wall 42A of the magnet holder 42.
  • the lens holder 41 includes a carrier 51 and an autofocus coil (hereinafter referred to as an AF coil) 52 disposed on the outer periphery of the carrier 51.
  • the carrier 51 has a rectangular cylindrical shape and is provided with a circular hole 51A in the center.
  • the carrier 51 is made of an insulating resin such as glass-filled polycarbonate or liquid crystal polymer.
  • the diameter of the circular hole 51A may or may not be constant in the optical axis direction of the lens that is the vertical direction (Z-axis direction).
  • a shape such as a screw for fixing the lens may be provided on the inner wall of the circular hole 51A.
  • the AF coil 52 is formed by being wound around the carrier 51 around the optical axis direction of the lens.
  • the magnet holder 42 has a rectangular cylindrical shape, is composed of four side walls 42A provided on the front, rear, left and right sides, and is formed of an insulating resin such as polycarbonate containing glass.
  • the magnets 46A to 46D are fixed to the inside of the side wall 42A with an adhesive (not shown) or the like, and face the AF coil 52.
  • the magnetic poles on the inner side surfaces of the magnets 46A to 46D are the same.
  • the inner surfaces of the magnets 46A to 46D are S poles and the outer surfaces are N poles.
  • neodymium magnets which are rare earth magnets mainly composed of neodymium, iron and boron can be used.
  • the lower spring 43 includes an outer peripheral portion 43A, an inner peripheral portion 43B, and a plurality of spring portions 43C that connect the outer peripheral portion 43A and the inner peripheral portion 43B.
  • each of the upper springs 44 has an outer peripheral portion 44A, an inner peripheral portion 44B, and a plurality of spring portions 44C that connect the outer peripheral portion 44A and the inner peripheral portion 44B.
  • Holes 44 ⁇ / b> D are provided in the vicinity of the four corners in the combined shape of the two upper springs 44.
  • the lower spring 43 and the upper spring 44 are metal leaf springs.
  • the pair of upper springs 44 are connected to both ends of the coil wire constituting the AF coil 52, respectively.
  • the AF coil 52 can be energized.
  • the electronic circuit and the AF coil 52 are electrically connected via the flexible printed wiring board 72, the electrodes 92 and 93, any two or more of the wires 33A to 33D, and the upper spring 44.
  • a substantially circular circular hole 45A is provided at the center of the lower plate 45, and four square holes 45B are provided around the circular hole 45A.
  • a space is also provided between the outer peripheral portion 43A and the inner peripheral portion 43B.
  • the magnets 46A to 46D are inserted so as to penetrate the square hole 45B and this space, and as shown in FIG. 2, the lower surfaces of the magnets 46A to 46D are exposed from the square hole 45B.
  • the outer peripheral portion 44A of the upper spring 44 is fixed to the upper surface of the magnet holder 42, and the lower plate 45 is fixed to the lower surface of the magnet holder 42 with the outer peripheral portion 43A of the lower spring 43 interposed therebetween. Further, the inner peripheral portion 43B and the inner peripheral portion 44B are fixed to the lens holder 41.
  • the lens holder 41 moves up and down with respect to the magnet holder 42. . Then, the lens holder 41 stops at a position where the weight of the lens holder 41 and the spring force and electromagnetic force of the lower spring 43 and upper spring 44 are balanced. Further, when no current flows through the AF coil 52, the lens holder 41 returns to a predetermined position with respect to the magnet holder.
  • the coil unit 32 includes a coil body 71, a flexible printed wiring board 72, a magnetic detection element 73, and a base 74.
  • the coil body 71 includes a holding unit 81 and an OIS (Optical Image Stabilization) coil 82.
  • the holding part 81 is, for example, a glass epoxy board, a paper epoxy board, a polyimide board, or the like.
  • a circular hole 81 ⁇ / b> A is provided at the center of the holding portion 81.
  • the OIS coil 82 is formed on the upper surface of the holding portion 81 in a predetermined pattern, and is arranged in the front-rear and left-right directions with respect to the circular hole 81A.
  • the OIS coil 82 includes a long diameter coil 82A and a short diameter coil 82B.
  • the longest width of the long diameter coil 82A is 80% or more of the diameter of the circular hole 81A.
  • the longest width of the short diameter coil 82B is not less than 20% and not more than 50% of the diameter of the circular hole 81A.
  • One long-diameter coil 82A is arranged in each of the negative direction of the X axis and the positive direction of the Y axis with respect to the circular hole 81A.
  • Two short-diameter coils 82B are arranged in each of the positive direction of the X axis and the negative direction of the Y axis with respect to the circular hole 81A.
  • a gap 81B is provided with a predetermined width between two short-diameter coils 82B arranged in the same direction.
  • the OIS coil 82 and the AF coil 52 are formed of a metal wire such as copper and have a diameter in the range of 40 ⁇ m to 60 ⁇ m, for example. Further, the surface is covered with an insulator such as polyimide for insulation.
  • the flexible printed wiring board 72 which is an example of a wiring board
  • wirings are arranged in a predetermined pattern.
  • a substantially circular circular hole 72 ⁇ / b> A is provided in the center of the flexible printed wiring board 72.
  • terminals 72 ⁇ / b> B connected to internal wiring are provided at the four corners of the flexible printed wiring board 72.
  • a hole 72C is formed in the center of the terminal 72B.
  • a rigid substrate such as a glass epoxy substrate, a paper epoxy substrate, or a polyimide substrate may be used.
  • the magnetic detection element 73 which is an example of a position detection element, detects the position of the movable unit 31 based on a change in magnetism.
  • the magnetic detection element 73 is a Hall element, for example. By using the Hall element as the magnetic detection element 73, the magnetic field generated by the magnets 46A to 46D can be detected.
  • the magnetic detection element 73 is arranged on the lower surface of the flexible printed wiring board 72, below the circular hole 72A, below the central gap 81B in the positive direction of the X axis, and below the central gap 81B in the negative direction of the Y axis. ing.
  • an element for detecting a change in capacitance, a photo reflector using infrared reflection, or the like may be used as the position detection element.
  • the magnetic detection element 73 is arranged below the gap 81B, so that even when a current flows through the short diameter coil 82B, the magnetic detection element 73 is hardly affected by the electromagnetic field generated in the short diameter coil 82B.
  • FIG. 4 is a perspective view showing the configuration of the base 74
  • FIG. 5 is a perspective view of the electrodes 92 and 93.
  • the base 74 includes a pedestal 91 and electrodes 92 and 93.
  • the pedestal portion 91 has a substantially rectangular plate shape, and is provided with cutout portions 91A at the four corners and a circular hole 91B at the center.
  • the ends of the electrode 92 are bent upward to form connection portions 92A and 92B, and holes 92C and 92D are formed slightly inside the electrode 92 from the connection portions 92A and 92B, respectively.
  • end portions of the electrode 93 are bent upward to form connection portions 93A and 93B, and holes 93C and 93D are formed slightly inward of the electrode 93 from the connection portions 93A and 93B, respectively.
  • the electrodes 92 and 93 are arranged in a part of the pedestal portion 91 so that the connection portions 92A, 92B, 93A and 93B and the holes 92C, 92D, 93C and 93D are exposed from the notch portion 91A.
  • the electrodes 92 and 93 are preferably integrated with the pedestal 91 by insert molding.
  • the flexible printed wiring board 72 is stacked above the base 74, and the coil body 71 is stacked on the flexible printed wiring board 72.
  • An OIS coil 82 is connected to the upper side of the flexible printed wiring board 72, and electrodes 92 and 93 are connected to the lower side.
  • the connecting portions 92A, 92B, 93A, 93B and the terminals 72B are connected by solder or conductive adhesive or the like.
  • the coil unit 32 includes a plurality of OIS coils 82 arranged at positions where electromagnetic force is generated between the magnets 46A to 46D, a holding portion 81 to which the OIS coils 82 are fixed, and end portions of the OIS coil 82. And a flexible printed wiring board 72 connected thereto. As a result, the lens actuator 100 can stably supply a current to the OIS coil 82.
  • the wires 33A to 33D connect the movable unit 31 and the coil unit 32. That is, the first ends of the wires 33A to 33D are connected to the movable unit 31, and the second ends are connected to the coil unit 32.
  • the wires 33A to 33D are connected to the movable unit 31 at the portion of the hole 44D by solder or conductive adhesive. Further, the wires 33A to 33D are connected to the coil unit 32 through holes 92C, 92D, 93C, and 93D, respectively. That is, the wires 33A to 33D and the electrodes 92 and 93 are connected by solder or conductive adhesive, and the wires 33A to 33D and the upper spring 44 are also connected by solder or conductive adhesive.
  • FIG. 6 is a cross-sectional view of the main part of the lens actuator 100, showing a connection state by the wire 33B.
  • the electrode 92 is connected to the terminal 72B of the flexible printed wiring board 72 at the connection portion 92B, and is connected to the wire 33B through the hole 92D.
  • the wire 33B passes through the hole 72C, the wire 33B is not directly fixed to the flexible printed wiring board 72. Thereby, the wire 33B is fixed by the hole 44D and the hole 92D, and the portion between the hole 44D and the hole 92D can be bent.
  • the wire 33B is shown as a representative, the configuration of FIG. 6 is the same for the other wires 33A, 33C, and 33D.
  • the effective length can be increased, the swing width of the movable unit 31 can be increased, and durability against a drop impact can be obtained.
  • the wires 33A to 33D are changed even if the amount of the solder or the conductive adhesive is changed.
  • the effective length of does not change. Therefore, mechanical characteristics can be stabilized.
  • the current flowing through the AF coil 52 of the movable unit 31 is supplied from the flexible printed wiring board 72 via the electrode 92 or 93 and the wires 33A to 33D. Further, the current flowing through the OIS coil 82 is also supplied from the flexible printed wiring board 72.
  • a lens (not shown) is held in the circular hole 51A of the lens holder 41, and an imaging element (not shown) such as a CCD image sensor or a CMOS image sensor is disposed below.
  • an imaging element such as a CCD image sensor or a CMOS image sensor is disposed below.
  • the AF coil 52 and the OIS coil 82 are connected to the electronic circuit (not shown) of the device via the flexible printed wiring board 72.
  • the wires 33A to 33D are electrically connected to the electronic circuit, and the remaining two need not be electrically connected.
  • the wires 33B and 33C connected to the holes 92D and 93C are connected to the electronic circuit.
  • the lens actuator 100 configured as described above, for example, when a shutter push button (not shown) for electronic equipment is lightly pressed, a voltage is applied from the electronic circuit and a current flows through the AF coil 52. Then, the lens holder 41 and the lens held in the circular hole 51A of the lens holder 41 move in the vertical direction, and autofocus control is performed to automatically focus on the video or image. That is, the video or image captured by the lens actuator 100 may be a still image or a moving image.
  • the electronic circuit detects the vibration by an angular velocity sensor (not shown) or the like separately provided in the electronic device. . Then, the current that the electronic circuit passes through the OIS coil 82 is controlled to move the movable unit 31 in the front-rear or left-right direction, and shake correction control is performed.
  • the upper spring 44 and the electrodes 92 and 93 are made of an elastic metal. Therefore, it has stable elasticity and excellent mechanical properties such as durability. For this reason, the movable unit 31 can be supported mechanically stably, and shake correction control can be performed stably.
  • the bottom surfaces of the exposed portions of the electrodes 92 and 93 located around the holes 92C, 92D, 93C, and 93D of the electrodes 92 and 93 may be sealed with an adhesive or the like. This prevents dust from entering and more stably supports the wires 33A to 33D.
  • the flexible printed wiring board 72 connected to the OIS coil 82 and the magnetic detection element 73 and the electrodes 92 and 93 supporting the wires 33A to 33D are provided separately. Therefore, the design freedom of the position and structure of the flexible printed wiring board 72 and the electrodes 92 and 93 can be increased.
  • the OIS coil 82 connected to the flexible printed wiring board 72 is disposed close to the magnets 46A to 46D. Then, the distance between the upper spring 44 to which the wires 33A to 33D are connected and the electrodes 92 and 93 is increased. In this way, the effective length of the wires 33A to 33D can be increased. From this, the electromagnetic force for operating the movable unit 31 can be increased. In addition, the flexibility of the wires 33A to 33D can be increased. Therefore, the movable range of the movable unit 31 can be increased to improve the effect of camera shake correction control. Furthermore, the drop impact and durability can be increased by increasing the flexibility of the wires 33A to 33D.
  • the flexible printed wiring board 72 is disposed on the electrodes 92 and 93 and the electrodes 92 and 93 are disposed on the periphery of the base 74.
  • the circular hole 91 ⁇ / b> B of the pedestal portion 91 is configured in a two-step or tapered shape so that the upper end diameter is smaller than the lower end diameter.
  • the maximum width of the diameter of the circular hole 91B can be made larger than the maximum width of the diameter of the circular hole 72A. Therefore, it is possible to increase the space in which the image sensor and the like are arranged and improve the optical performance of a camera system or the like in which the lens actuator 100 is used.
  • the autofocus mechanism that moves the lens in the optical axis direction by autofocus control is not necessarily configured by the AF coil 52 and the magnets 46A to 46D.
  • the autofocus mechanism may use a shape memory alloy, a piezo element, or an electrostatic actuator. That is, it is sufficient that power can be supplied to the movable unit 31 via any two or more of the wires 33A to 33D.
  • the pair of upper springs 44 are respectively connected to both ends of the coil wire constituting the AF coil 52.
  • power is supplied from the wires 33A to 33D to the movable unit 31 via the upper spring 44.
  • the upper spring 44 is not necessarily used as the energization path. In that case, the upper spring may be integrally formed.
  • the base 74 includes the pedestal portion 91 and the electrodes 92 and 93 fixed to the pedestal portion 91.
  • Wires 33A to 33D are connected to the electrodes 92 and 93.
  • the electrodes 92 and 93 have connection portions 92A, 92B, 93A, and 93B that are connected to the flexible printed wiring board 72 that is a wiring board.
  • the wires 33A to 33D and the electrodes 92 and 93 constitute an energization path for supplying power from the flexible printed wiring board 72 to the movable unit 31.
  • the flexible printed wiring board 72 and the wires 33A to 33D are electrically and stably connected via the electrodes 92 and 93. As a result, a current can be stably supplied to the wires 33A to 33D.
  • the electrodes 92 and 93 are insert-molded in the pedestal portion 91, and the connection portions 92A, 92B, 93A and 93B are exposed from the pedestal portion 91. Therefore, the electrodes 92 and 93 are firmly fixed to the pedestal portion 91, and current can be stably supplied to the wires 33A to 33D.
  • FIG. 9 is a detailed exploded perspective view of the lens actuator 200.
  • the lens actuator 200 includes a movable unit 131, a coil unit 132, wires 33A to 33D, and an upper cover 34.
  • the movable unit 131 includes a pair of upper springs 144, a magnet holder 142, magnets 46A to 46D, a lens holder 41, a lower spring 143, and a lower plate 145.
  • each of the upper springs 144 includes an outer peripheral portion 144A, an inner peripheral portion 144B, and a plurality of spring portions 144C that connect the outer peripheral portion 144A and the inner peripheral portion 144B.
  • Protrusions 144E protruding in four directions are provided in the vicinity of the four corners in the shape of the combination of the two upper springs 144, and holes 144D are provided in the respective protrusions 144E.
  • the movable unit 131 has a magnet holder 142 instead of the magnet holder 42.
  • the magnet holder 142 is provided with a hole 142A at the center and is formed of an insulating resin such as a glass-filled polycarbonate with a square plate shape.
  • the lens holder 41 is inserted into the hole 142A of the magnet holder 142, and the AF coil 52 and the magnets 46A to 46D face each other.
  • the magnets 46A to 46D pass through the lower spring 43 and the lower plate 45, but the lower spring 143 and the lower plate 145 do not have holes through which the magnets 46A to 46D pass.
  • the magnets 46 A to 46 D are mounted on the magnet holder 142 above the lower spring 143 and the lower plate 145.
  • the lower spring 143 includes an outer peripheral portion 143A, an inner peripheral portion 143B, and a plurality of spring portions 143C that connect the outer peripheral portion 143A and the inner peripheral portion 143B.
  • a substantially circular circular hole 145A is provided at the center of the lower plate 145.
  • the lower plate 145 is disposed so that the center of the circular hole 145A is positioned below the center of the circular hole 51A.
  • the other configuration of the movable unit 131 is the same as that of the movable unit 31.
  • FIG. 10 is an exploded perspective view of the coil unit 132.
  • the coil unit 132 includes a coil body 171, a flexible printed wiring board 172, a magnetic detection element 73, and a base 174.
  • the difference between the second embodiment and the first embodiment is that the coil unit 132 mainly includes an OIS coil 182, and the OIS coil 182 faces the outer surface of the movable unit 131 and the direction orthogonal to the optical axis direction is wound. This is the point in the direction of the central axis of rotation.
  • the coil body 171 includes a holding portion 181 and OIS coils 182 (182A to 182D).
  • the holding portion 181 has a rectangular box shape with an open top surface, is provided with a circular hole 181A in the center, and has coil holding plates 181B on the front, rear, left and right side surfaces.
  • An OIS coil 182 is disposed on each of the coil holding plates 181B.
  • a wiring is arranged in a predetermined pattern inside a flexible printed wiring board 172 which is an example of a wiring board.
  • the flexible printed wiring board 172 is provided with a circular hole 172A.
  • terminals 172B connected to internal wiring are provided at two locations on the lower surface of the flexible printed wiring board 172.
  • the coil unit 132 includes a plurality of OIS coils 182 arranged at positions where electromagnetic force is generated between the magnets 46A to 46D, and a holding unit 181 to which the OIS coil 182 is fixed. And a flexible printed wiring board 172 to which an end of the OIS coil 182 is connected.
  • the first ends of the wires 33A to 33D are connected to the movable unit 131, and the second ends are connected to the coil unit 132.
  • the magnetic detection element 73 is an element that detects the position of the movable unit 131.
  • the magnetic detection element 73 is disposed on the lower surface of the flexible printed wiring board 172 at the center of the end in the positive direction of the X axis and the negative direction of the Y axis with respect to the circular hole 172A.
  • FIG. 11 is a perspective view showing the configuration of the base 174
  • FIG. 12 is a perspective view of the electrodes 192 and 193.
  • the base 174 has a pedestal 191 and electrodes 192 and 193.
  • the pedestal portion 191 has a substantially rectangular plate shape, and is provided with holes 191A at the four corners and a circular hole 191B at the center.
  • the electrode 192 has a connecting portion 192A bent upward, and a hole 192B is provided in the vicinity of each of the left corners.
  • the electrode 193 has a connection portion 193A bent upward, and a hole 193B is provided in the vicinity of each of the right corners.
  • the electrodes 192 and 193 are arranged in a part of the pedestal portion 191 so that the holes 192B and 193B are exposed in the hole 191A and the connection portions 192A and 193A are exposed from the side surface of the pedestal portion 191. Yes.
  • the electrodes 192 and 193 are preferably integrated with the pedestal 191 by insert molding.
  • the flexible printed wiring board 172 is overlaid on the base 174, and the coil body 171 is overlaid on the flexible printed wiring board 172.
  • the OIS coil 182 and the electrodes 192 and 193 are connected to the flexible printed wiring board 172.
  • the wires 33A to 33D connect the movable unit 131 and the coil unit 132.
  • the wires 33A to 33D are connected to the upper spring 144 and the hole 144D in the movable unit 131.
  • the wires 33A to 33D and the electrodes 192 and 193 of the coil unit 132 are connected through holes 192B and 193B, respectively.
  • the wires 33A to 33D and the electrodes 192 and 193 are connected by soldering, and the wires 33A to 33D and the upper spring 144 are also connected by soldering.
  • FIG. 13 is a perspective view showing a connection state between the base 174 and the flexible printed wiring board 172.
  • the electrode 192 is connected to the terminal 172B at the connection portion 192A, and is connected to the wire 33A through the hole 192B.
  • the wire 33 ⁇ / b> A is connected to the flexible printed wiring board 172 via the electrode 192.
  • the wire 33D and the flexible printed wiring board 172 may be connected via the electrode 192.
  • the electrode 193 is also connected to the other terminal 172B at the connection portion 193A and connected to the wire 33B through the hole 193B.
  • the wire 33B is connected to the flexible printed wiring board 172 via the electrode 193.
  • the wire 33 ⁇ / b> C and the flexible printed wiring board 172 may be connected via the electrode 193.
  • a lens (not shown) is held in the movable unit 131, and an image pickup device (not shown) such as a CCD image sensor or a CMOS image sensor is arranged below, and the camera And electronic devices such as mobile phones.
  • an image pickup device such as a CCD image sensor or a CMOS image sensor is arranged below, and the camera And electronic devices such as mobile phones.
  • the lens held in the movable unit 131 moves up and down, and autofocus control is performed to focus an image or image. Done automatically.
  • the vibration is detected by an electronic circuit by an angular velocity sensor (not shown) or the like separately provided in the electronic device. Controls the current flowing through the OIS coil 182 to move the movable unit 131 in the front-rear or left-right direction, and shake correction control is performed.
  • the OIS coil 182 is wound around the direction orthogonal to the optical axis of the lens and is disposed to face the movable unit 131, the OIS coil is disposed between the movable unit 131 and the flexible printed wiring board 172. This is unnecessary, and the lens actuator 200 can be made thinner.
  • a rigid substrate such as a glass epoxy substrate or a paper epoxy substrate may be used instead of the flexible printed wiring board 172.
  • FIG. 14 is a perspective view of the coil body 171 half rotated in the vertical direction.
  • a coil holding plate 181B which is a side plate, is provided on four sides of the holding portion 181.
  • a groove portion 181C is provided inside each coil holding plate 181B.
  • eight projecting portions 181D are provided in the direction in which the holding portion 181 contacts the flexible printed wiring board 172. That is, the holding portion 181 includes a main body portion 181M including the coil holding plate 181B, and a protrusion 181D that protrudes from the main body portion 181M toward the flexible printed wiring board 172.
  • the coil wires constituting the OIS coils 182A to 182D are wound around the groove 181C, and are wound around the protrusion 181D near the groove 181C around which both ends of the OIS coils 182A to 182D are wound.
  • the protrusion 181D in the vicinity of the groove 181C around which the OIS coil 182A is wound is the protrusions 811 and 812
  • the first end of the coil wire of the OIS coil 182A is wound around the protrusion 811, and then the groove 181C. Wound around.
  • the second end is wound around the protrusion 812. That is, a part of the coil wire that continues to the end of the OIS coil 182A is wound around the protrusions 811 and 812.
  • the protrusion 181D is disposed on a plane that is substantially orthogonal to the main surface of the coil holding plate 181B that constitutes the plane on which the OIS coil 182A is disposed in the holding part 181.
  • the angle at which these two surfaces intersect is preferably, for example, 80 degrees or more and 110 degrees or less. If it is this range, when winding a coil wire around the groove part 181C and the projection part 181D, the space which the nozzle which guide
  • the coil area of the OIS coil 182A can be increased, and the driving force for shake correction control can be increased.
  • the driving force for shake correction control can be improved while the electrical connection of the OIS coil 182 is stable, the accuracy of shake correction control can be improved.
  • FIG. 15 is a perspective view of the flexible printed wiring board 172 fixed to the coil body 171 and viewed obliquely from below.
  • the coil body 171 is provided with eight protrusions 181D
  • the flexible printed wiring board 172 is provided with eight holes 172C around the circular hole 172A.
  • protrusion part 181D protrudes from each hole 172C.
  • a connection terminal 172D is disposed around each hole 172C.
  • the connection terminal 172D is provided on the opposite side of the surface of the flexible printed wiring board 172 that contacts the main body portion 181M of the holding portion 181.
  • the ends of the coil wires extending from the protrusions 181D around which both ends of the OIS coils 182A to 182D are wound are fixed in a state of being electrically connected to the connection terminals 172D by soldering or the like.
  • the protrusion 181D is made of metal, the end of the coil wire is connected to the protrusion 181D, and the protrusion 181D is fixed to the connection terminal 172D in an electrically conductive state by soldering or the like. Good.
  • connection terminal 172D is connected to the wiring inside the flexible printed wiring board 172, and current is supplied to the OIS coils 182A to 182D via the flexible printed wiring board 172.
  • the holding portion 181 is provided with the protrusion 181D, and the protrusion 181D is passed through the flexible printed wiring board 172 to fix the flexible printed wiring board 172 and the holding portion 181.
  • the flexible printed wiring board 172 and the holding portion 181 are more strongly fixed, it is possible to supply current more stably to the OIS coils 182A to 182D.
  • the lens actuator 200 includes the OIS coils 182A to 182D, the holding portion 181 and the flexible printed wiring board 172.
  • the OIS coils 182A to 182D generate electromagnetic force with the magnets 46A to 46D of the movable unit.
  • OIS coils 182A to 182D are fixed to the holding portion 181.
  • the flexible printed wiring board 172 is fixed to the holding portion 181 and has a connection terminal 172D to which at least one end of the OIS coils 182A to 182D is connected. As a result, the lens actuator 200 can stably supply current to the OIS coils 182A to 182D.
  • FIG. 16 is an exploded perspective view of the lens actuator 300 according to the third embodiment of the present invention.
  • the lens actuator 300 includes a movable unit 231, a coil unit 232, wires 33A to 33D, an upper cover 34, and a lower plate 245.
  • the movable unit 231 is disposed inside the coil unit 232, and the movable unit 231 and the coil unit 232 are connected by wires 33A to 33D.
  • a lower plate 245 is disposed below the combined movable unit 231 and coil unit 232, and the upper cover 34 covers the upper plate 34 from above.
  • the movable unit 231 includes a lens holder 141, an AF coil (not shown) wound around the lens holder 141, and magnets 146A to 146D. Then, the lens holder 141 moves up and down by the electromagnetic force generated between the AF coil and the magnets 146A to 146D, and autofocus control is performed.
  • the magnets 146A to 146D are magnetized with different magnetic poles in two upper and lower stages. For example, the outer surfaces of the magnets 146A to 146D are magnetized with an N pole on the upper stage and an S pole on the lower stage, and the inner surface is magnetized with an S pole on the upper stage and an N pole on the lower stage.
  • the coil unit 232 includes a coil body 271, a flexible printed wiring board 272, and a magnetic detection element 73. Next, the coil body 271 will be described with reference to FIG. FIG. 17 is a perspective view of the coil body 271.
  • the coil body 271 includes a holding portion 281, OIS coils 182A to 182D, and crossover wires 291A and 291B.
  • the connecting wire 291A connects the OIS coil 182A and the OIS coil 182C
  • the connecting wire 291B connects the OIS coil 182B and the OIS coil 182D. It is preferable that the OIS coil 182A, the OIS coil 182C, and the crossover wire 291A are configured by a single coil wire, and the OIS coil 182B, the OIS coil 182D, and the crossover wire 291B are also configured by a single coil wire.
  • the holding portion 281 includes a main body portion 281M including the coil holding plate 181B, and protrusions 281A to 281H protruding from the main body portion 281M toward the flexible printed wiring board 272.
  • the protrusions 281A to 281H are used for winding the end of the coil wire or bending the coil wire.
  • the coil wires forming the OIS coil 182A and the OIS coil 182C are wound by the following path. First, one end of the coil wire is fixed to the protrusion 281A and wound around one of the coil holding plates 181B to form the OIS coil 182A. Then, the coil wire is routed so as to be suspended from the protruding portion 281B to the protruding portion 281D and from the protruding portion 281D to the protruding portion 281F. Then, the OIS coil 182C is formed by being wound around a coil holding plate 181B at a position facing the OIS coil 182A. Furthermore, after the OIS coil 182C is formed, the other end of the coil wire is fixed to the protrusion 281E.
  • the coil wires forming the OIS coil 182B and the OIS coil 182D are wound by the following path.
  • one end of the coil wire is fixed to the protruding portion 281C and wound around one of the coil holding plates 181B to form the OIS coil 182B.
  • the coil wire is routed so as to be suspended from the protrusion 281D to the protrusion 281B and from the protrusion 281B to the protrusion 281H.
  • the OIS coil 182D is formed by being wound around a coil holding plate 181B at a position facing the OIS coil 182B.
  • the other end of the coil wire is fixed to the protrusion 281G.
  • the production efficiency of the lens actuator 300 is improved by configuring the OIS coils 182A to 182D with two coil wires.
  • FIG. 18 is a perspective view of the flexible printed wiring board 272 on which the magnetic detection element 73 is arranged.
  • the flexible printed wiring board 272 is bent a plurality of times, and is composed of an upper surface substrate 272A and three side surface substrates 272B.
  • the magnetic detection element 73 is disposed inside the adjacent side substrate 272B.
  • connection terminal 272C is provided at each corner of the upper substrate 272A, and a hole 272D is provided in the connection terminal 272C.
  • a plurality of wirings 272E connected to the connection terminals 272C and the magnetic detection elements 73 are disposed on the upper surface of the upper substrate 272A.
  • the side substrate 272B is also provided with a plurality of wirings 272F. Note that the wiring 272E is formed by a line thinner than the wiring 272F.
  • the second ends of the wires 33A to 33D are connected to the flexible printed wiring board 272.
  • the thus configured flexible printed wiring board 272 is arranged on the upper surface of the coil body 271, and projecting portions 281A, 281C, 281E, 281G to which the coil wires are fixed are inserted into the holes 272D and protruded. Then, the coil wire wound around the protrusions 281A, 281C, 281E, and 281G is fixed to the connection terminal 272C by soldering or the like. As a result, current can be supplied to the OIS coils 182A to 182D via the flexible printed wiring board 272.
  • the flexible printed wiring board 272 is disposed so as to cover the coil body 271.
  • the connecting wire 291A is connected between the opposing OIS coil 182A and the OIS coil 182C, and the connecting wire 291B is connected between the facing OIS coil 182B and the OIS coil 182D.
  • the coil unit 232 includes OIS coils 182A to 182D arranged at positions where electromagnetic force is generated between the magnets 146A to 146D, a holding unit 281 to which the OIS coils 182A to 182D are fixed, and the OIS coils 182A to 182A to 182A. And a flexible printed wiring board 272 to which one end of 182D is connected.
  • the flexible printed wiring board 272 has a plurality of connection terminals 272C connected to one end of each of the OIS coils 182A to 182D, and is fixed to the holding portion 281.
  • the holding portion 281 includes a main body portion 281M to which the OIS coils 182A to 182D are fixed, and protrusions 281A to 281H protruding from the main body portion 281M in a direction in contact with the flexible printed wiring board 272, and the protrusion portions 281A, 281C, and 281E. , 281G penetrate the flexible printed wiring board 272.
  • a part of the coil wire that continues to one end of the OIS coils 182A to 182D is wound around the protrusions 281A, 281C, 281E, and 281G, and the connection terminal 272C is the main body portion 281M of the holding portion 281 of the flexible printed wiring board 272. It is provided on the opposite side to the surface in contact with.
  • Respective planes on which the OIS coils 182A to 182D are arranged are orthogonal to planes on which the protrusions 281A to 281H are arranged.
  • the magnetic field generated by the OIS coils 182A to 182D causes the wiring 272E of the flexible printed wiring board 272, etc. May cause noise.
  • the above-mentioned noise can be reduced by using the crossover wires 291A and 291B. Therefore, a signal transmitted from the magnetic detection element 73 via the wiring 272E is less susceptible to noise, and the lens actuator 300 can be controlled more stably.
  • the magnetic detection element 73 is preferably located in front of the lower magnetic poles of the magnets 146A to 146D when the movable unit 231 and the coil unit 232 are combined. Thereby, the magnetic detection element 73 can detect the magnetic field efficiently, and the detection accuracy of the position of the movable unit 231 is improved.
  • a lens is held in the movable unit 231, and an imaging device (not shown) such as a CCD image sensor or a CMOS image sensor is disposed below, so that a camera, a mobile phone, or the like is arranged. Mounted on electronic equipment.
  • the lens held in the movable unit 231 moves up and down, and autofocus control is performed to focus the image or image. Matching is done automatically.
  • an electronic circuit is connected by an angular velocity sensor (not shown) or the like provided separately in the electronic device. To detect.
  • the electronic circuit controls the current flowing through the OIS coils 182A to 182D to move the movable unit 231 in the front-rear or left-right direction, and shake correction control is performed.
  • the OIS coil 182A that is the first OIS coil and the OIS coil 182C that is the second OIS coil are connected by the crossover wire 291A.
  • the influence of noise on the wiring 272E of the flexible printed wiring board 272 is suppressed.
  • the OIS coils 182A and 182C and the crossover wire 291A are formed by a single coil wire, the production efficiency of the lens actuator 300 is improved in addition to the above-described effects.
  • a configuration using the crossover lines 291A and 291B may be applied to the first and second embodiments.
  • the lens actuator according to the present invention can stably supply current to the OIS coil.
  • This lens actuator is useful mainly for lens operation of a camera or a mobile phone.

Landscapes

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

Abstract

La présente invention porte sur un actionneur de lentille qui comporte : une unité mobile qui comprend des aimants ; des fils ayant chacun une extrémité reliée à l'unité mobile ; des bobines OIS ; une section de maintien à laquelle les bobines OIS sont fixées ; une carte de câblage ; et une base. Les bobines OIS sont réparties à des positions au niveau desquelles les bobines OIS génèrent une force électromotrice en coopération avec les aimants. Au moins une extrémité de chacune des bobines OIS est reliée à la carte de câblage. La base est disposée sur le côté opposé de la carte de câblage depuis l'unité mobile et comprend une partie socle et des électrodes qui sont fixées à la partie socle. Les électrodes sont reliées individuellement à au moins l'un des fils et comprennent respectivement des sections de liaison reliées à la carte de câblage.
PCT/JP2013/002978 2012-05-16 2013-05-09 Actionneur de lentille WO2013172001A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2012-112164 2012-05-16
JP2012112164A JP2015143722A (ja) 2012-05-16 2012-05-16 レンズアクチュエータ
JP2012116195A JP2015143726A (ja) 2012-05-22 2012-05-22 レンズアクチュエータ
JP2012-116195 2012-05-22

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WO2013172001A1 true WO2013172001A1 (fr) 2013-11-21

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WO (1) WO2013172001A1 (fr)

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JP2015125397A (ja) * 2013-12-27 2015-07-06 日本電産コパル株式会社 レンズ駆動装置
CN104820269A (zh) * 2014-02-01 2015-08-05 日本电产科宝株式会社 镜头驱动装置
JP2015191213A (ja) * 2014-03-28 2015-11-02 日本電産コパル株式会社 レンズ駆動装置
EP3045949A1 (fr) * 2015-01-16 2016-07-20 LG Innotek Co., Ltd. Dispositif de déplacement de lentille, module de caméra et appareil optique
CN105938287A (zh) * 2015-03-02 2016-09-14 三星电机株式会社 相机模块
CN106199895A (zh) * 2015-05-26 2016-12-07 新思考电机有限公司 多层线圈、透镜驱动装置、摄像头装置和电子设备
JP2017003888A (ja) * 2015-06-12 2017-01-05 日本電産コパル株式会社 レンズ駆動装置並びにこれを備える撮像装置及び電子機器
JP2017021221A (ja) * 2015-07-10 2017-01-26 シャープ株式会社 レンズ駆動装置
JP2017021270A (ja) * 2015-07-14 2017-01-26 アルプス電気株式会社 レンズ駆動装置
JP2017021093A (ja) * 2015-07-08 2017-01-26 日本電産サンキョー株式会社 コイルユニットおよび撮影用光学装置
JP2018173585A (ja) * 2017-03-31 2018-11-08 日本電産コパル株式会社 モバイル用電磁駆動装置
CN110226122A (zh) * 2016-11-29 2019-09-10 三美电机株式会社 透镜驱动装置、摄像机模块及摄像机搭载装置
WO2020244466A1 (fr) * 2019-06-01 2020-12-10 诚瑞光学(常州)股份有限公司 Module de prisme de lentille
CN112946969A (zh) * 2019-11-25 2021-06-11 新思考电机有限公司 光学部件驱动装置、照相机装置以及电子设备
WO2021117374A1 (fr) * 2019-12-12 2021-06-17 ミツミ電機株式会社 Dispositif d'entraînement de lentille, module de caméra et dispositif équipé d'une caméra
JP2022067105A (ja) * 2019-12-12 2022-05-02 ミツミ電機株式会社 レンズ駆動装置、カメラモジュール、及びカメラ搭載装置

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WO2013024726A1 (fr) * 2011-08-12 2013-02-21 シャープ株式会社 Module de caméra

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JP2006039075A (ja) * 2004-07-26 2006-02-09 Nikon Corp カメラ
JP2009198948A (ja) * 2008-02-25 2009-09-03 Alps Electric Co Ltd レンズ駆動装置及びカメラ装置
JP2010078842A (ja) * 2008-09-25 2010-04-08 Mitsumi Electric Co Ltd カメラの手振れ補正装置
JP2011128583A (ja) * 2009-11-17 2011-06-30 Tdk Taiwan Corp レンズ駆動装置
JP2011247909A (ja) * 2010-05-21 2011-12-08 Tdk Corp レンズ駆動装置
JP2012037549A (ja) * 2010-08-03 2012-02-23 Sharp Corp カメラモジュール
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Cited By (25)

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Publication number Priority date Publication date Assignee Title
JP2015125397A (ja) * 2013-12-27 2015-07-06 日本電産コパル株式会社 レンズ駆動装置
CN104820269A (zh) * 2014-02-01 2015-08-05 日本电产科宝株式会社 镜头驱动装置
JP2015145931A (ja) * 2014-02-01 2015-08-13 日本電産コパル株式会社 レンズ駆動装置
JP2015191213A (ja) * 2014-03-28 2015-11-02 日本電産コパル株式会社 レンズ駆動装置
US11099350B2 (en) 2015-01-16 2021-08-24 Lg Innotek Co., Ltd. Lens driving device, camera module and optical apparatus
EP3045949A1 (fr) * 2015-01-16 2016-07-20 LG Innotek Co., Ltd. Dispositif de déplacement de lentille, module de caméra et appareil optique
EP3674767A1 (fr) * 2015-01-16 2020-07-01 Lg Innotek Co. Ltd Dispositif de déplacement de lentille, module de caméra et appareil optique
US10520699B2 (en) 2015-01-16 2019-12-31 Lg Innotek Co., Ltd. Lens driving device, camera module and optical apparatus
CN105938287A (zh) * 2015-03-02 2016-09-14 三星电机株式会社 相机模块
CN106199895A (zh) * 2015-05-26 2016-12-07 新思考电机有限公司 多层线圈、透镜驱动装置、摄像头装置和电子设备
JP2017003888A (ja) * 2015-06-12 2017-01-05 日本電産コパル株式会社 レンズ駆動装置並びにこれを備える撮像装置及び電子機器
JP2017021093A (ja) * 2015-07-08 2017-01-26 日本電産サンキョー株式会社 コイルユニットおよび撮影用光学装置
JP2017021221A (ja) * 2015-07-10 2017-01-26 シャープ株式会社 レンズ駆動装置
JP2017021270A (ja) * 2015-07-14 2017-01-26 アルプス電気株式会社 レンズ駆動装置
CN110226122A (zh) * 2016-11-29 2019-09-10 三美电机株式会社 透镜驱动装置、摄像机模块及摄像机搭载装置
JP2018173585A (ja) * 2017-03-31 2018-11-08 日本電産コパル株式会社 モバイル用電磁駆動装置
WO2020244466A1 (fr) * 2019-06-01 2020-12-10 诚瑞光学(常州)股份有限公司 Module de prisme de lentille
CN112946969A (zh) * 2019-11-25 2021-06-11 新思考电机有限公司 光学部件驱动装置、照相机装置以及电子设备
CN112946969B (zh) * 2019-11-25 2022-12-06 新思考电机有限公司 光学部件驱动装置、照相机装置以及电子设备
WO2021117374A1 (fr) * 2019-12-12 2021-06-17 ミツミ電機株式会社 Dispositif d'entraînement de lentille, module de caméra et dispositif équipé d'une caméra
JP2021092726A (ja) * 2019-12-12 2021-06-17 ミツミ電機株式会社 レンズ駆動装置、カメラモジュール、及びカメラ搭載装置
JP7057516B2 (ja) 2019-12-12 2022-04-20 ミツミ電機株式会社 レンズ駆動装置、カメラモジュール、及びカメラ搭載装置
JP2022067105A (ja) * 2019-12-12 2022-05-02 ミツミ電機株式会社 レンズ駆動装置、カメラモジュール、及びカメラ搭載装置
JP7075029B2 (ja) 2019-12-12 2022-05-25 ミツミ電機株式会社 レンズ駆動装置、カメラモジュール、及びカメラ搭載装置
US11880127B2 (en) 2019-12-12 2024-01-23 Mitsumi Electric Co., Ltd. Lens driving apparatus, camera module, and camera-mounted apparatus

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