WO2010058639A1 - Dispositif de commande de lentille et module de caméra dans lequel est monté le dispositif de commande de lentille - Google Patents

Dispositif de commande de lentille et module de caméra dans lequel est monté le dispositif de commande de lentille Download PDF

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Publication number
WO2010058639A1
WO2010058639A1 PCT/JP2009/064497 JP2009064497W WO2010058639A1 WO 2010058639 A1 WO2010058639 A1 WO 2010058639A1 JP 2009064497 W JP2009064497 W JP 2009064497W WO 2010058639 A1 WO2010058639 A1 WO 2010058639A1
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WO
WIPO (PCT)
Prior art keywords
holder
driving device
lens driving
lens
magnetic plate
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Application number
PCT/JP2009/064497
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English (en)
Japanese (ja)
Inventor
三生 中島
博司 山下
裕麻 青井
哲 太田
Original Assignee
三洋電機株式会社
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Application filed by 三洋電機株式会社 filed Critical 三洋電機株式会社
Publication of WO2010058639A1 publication Critical patent/WO2010058639A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism

Definitions

  • the present invention is a lens driving device comprising a holder that holds a lens and is movable in the direction of the optical axis of the lens, and a plurality of magnets that surround the lens in the radial direction and are spaced apart from each other and fixed to the holder. And a camera module equipped with the lens driving device.
  • a camera mounted on a mobile phone has been increased in the number of pixels and has become an essential function. Therefore, in order to perform autofocus of the camera, a lens driving device that moves the lens in the direction of the optical axis of the lens (hereinafter referred to as “optical axis direction”) is used in the camera.
  • optical axis direction a lens driving device that moves the lens in the direction of the optical axis of the lens
  • a voice coil type structure as in Patent Document 1 is adopted as a structure for driving the lens of the lens driving device.
  • This voice coil type structure is generally known to be able to reduce the size of the lens driving device because the structure can be simplified as compared with a structure using a stepping motor.
  • the coil is mounted on the holder side that holds the lens, the magnet is mounted on the base side, and the holder is moved in the lens optical axis direction by the electromagnetic driving force generated by applying current to the coil. Has moved to. Further, the holder is supported by a spring member, and the spring member is shared for power supply to the coil so that the wiring is not drawn from the holder.
  • This guide member is formed in a columnar shape, and guides the holder by being inserted into a through hole provided in the holder.
  • the present invention has been made in view of the above problems, and its object is to To provide a lens driving device that suppresses the occurrence of rattling in the radial direction of the holder, and a camera module equipped with this lens driving device.
  • the invention described in claim 1 is characterized in that a lens is held and a holder that is movable in the direction of the optical axis of the lens, and the lens is surrounded in a radial direction and spaced apart from each other.
  • the lens driving device further includes biasing means for pressing the holder in one radial direction to press-contact the holder and the guide member.
  • the holder when the holder moves in the direction of the optical axis by the biasing means, the holder slides with the shaft. Therefore, it is possible to eliminate the gap in the direction in which the holder is urged out of the gap between the outer peripheral surface of the guide member and the inner peripheral surface constituting the through hole of the holder, and the holder has a radial play. Can be prevented from occurring.
  • a magnetic plate is disposed at a position facing the magnet in the radial direction, and the urging means includes the magnet and the magnetic plate.
  • the holder can maintain the position in the direction of the optical axis by the magnetic force between the magnetic plate and the magnet.
  • biasing means is comprised with a magnet and a magnetic board, a magnetic board plays the role which maintains the position of the direction of the optical axis of a holder, and the role which suppresses generation
  • the holder in the plan view in the direction of the optical axis, is formed in a polygonal shape, and the guide member is on a diagonal line of the holder.
  • the gist is that a plurality of the magnetic plates are arranged only on one side of the center line with the diagonal line as the center line.
  • the attractive force of the magnet to the magnetic plate is generated only on one side of the diagonal line, so that the holder can be more reliably biased in one direction in the radial direction. Can do.
  • the gist is that the direction in which the holder is urged by the resultant force of the magnetic plate and the magnet facing in the radial direction is a direction perpendicular to the diagonal line.
  • the force applied to the guide member by the holder is biased, the movement of the holder in the direction of the optical axis becomes unstable. In the worst case, the holder moves in the direction of the optical axis with only one guide member. turn into. In that respect, in the present invention, the resultant force of the attractive force between the magnetic plate and the magnet is applied in a direction perpendicular to the diagonal line, whereby the force applied to the plurality of guide members by the holder can be made substantially equal. As a result, the holder can be smoothly moved in the direction of the optical axis.
  • the holder is provided with a plurality of through holes through which the plurality of guide members can be inserted.
  • the gist is that one through hole is formed in an elongated hole shape having a major axis in the direction along the diagonal line.
  • the gap between the outer peripheral surface of the guide member and the inner peripheral surface of the through hole is small.
  • the distance connecting the plurality of guide members and the distance connecting the plurality of through holes of the holder may be slightly different due to processing errors and assembly errors. For this reason, if the gap between the outer peripheral surface of the guide member and the inner peripheral surface of the through hole is too small, the guide member may not be inserted into the through hole.
  • the gap between the outer peripheral surface of the guide member and the inner peripheral surface of the through hole in the direction along the diagonal can be increased.
  • the guide member can be inserted into the through hole.
  • the gap between the outer peripheral surface of the guide member and the inner peripheral surface of the through hole can be reduced with respect to the direction perpendicular to the diagonal line, the radial shaking of the holder can be suppressed.
  • the guide member can be inserted into the through hole, the holder can smoothly move with respect to the guide member.
  • the lens driving device holds the coil and an outer frame of the lens driving device.
  • the gist is provided with a base to be configured, and the base is provided with a magnetic plate positioning portion for determining the radial position of the magnetic plate.
  • the magnetic plate positioning portion is provided on the base, the size of the radial gap between the magnetic plate and the magnet can be set with high accuracy. Therefore, for example, the distances between the plurality of magnets and the magnetic plates facing the magnets can be made constant. As a result, since the magnetic forces between the magnets and the magnetic plate can be made substantially equal to each other, it is possible to suppress the occurrence of bias in the force applied to the guide member by the holder.
  • the invention described in claim 7 is a camera module, and is summarized in that the lens driving device according to any one of claims 1 to 6 is mounted.
  • the lens driving device can be suitably mounted on the camera module.
  • the lens drive device which suppressed generation
  • the lens driving device according to the present invention is embodied as a lens driving device used for autofocus of a camera mounted on a mobile phone
  • optical axis direction the direction along the optical axis of the lens
  • radial direction the radial direction of the lens
  • the direction surrounding the lens from the radial direction is referred to as “circumferential direction”.
  • the base 30 side is defined as “lower side”
  • the case 40 side is defined as “upper side”.
  • the side toward the optical axis is defined as “inside”
  • the side away from the optical axis is defined as “outside”.
  • the whole structure of the lens drive device 1 is demonstrated.
  • the lens holder RH is omitted.
  • the lens driving device 1 is provided with a movable body 1a that can move in the optical axis direction, a driving force applied to the moving body 1a, and a fixed that is fixed to a device on which the lens driving device 1 is mounted. It is comprised by the body 1b.
  • the lens driving device 1 performs autofocusing of the camera by moving the lens in the optical axis direction as the moving body 1a moves in the optical axis direction.
  • the lens driving device 1 according to the present embodiment has about 8. in plan view in the optical axis direction. It is formed in a 5 mm square, and the height of the lens driving device 1 in the optical axis direction is about 3 mm.
  • the moving body 1a includes a lens, a lens holder RH that holds the lens, a holder 10 that holds the lens holder RH, and a plurality of magnets 20 that are fixed to the holder 10.
  • the four magnets 20 of this embodiment are being fixed to the holder 10 via the fixed distance in the circumferential direction mutually.
  • the magnet 20 is a neodymium magnet (Ne-Fe-B).
  • the magnet 20 of this embodiment uses a neodymium sintered magnet formed in a plate shape.
  • the holder 10 is formed in an octagonal shape in plan view in the optical axis direction by injection molding a resin material.
  • the magnet 20 Is provided with a holding portion 12 that is recessed inward in the radial direction from the side surface 10a of the holder 10 and that opens on the upper side in the optical axis direction.
  • the radial position of the outer surface 20a which is the outer surface in the radial direction of the magnet 20, and the radial position of the side surface 10a of the holder 10 are formed to be equal to each other.
  • a shaft 50 (FIG. 1) is provided between the magnets 20 adjacent in the circumferential direction.
  • Through-holes 13 and 14 are provided to enable insertion of the reference holes.
  • the through hole 13 is provided in a circular shape, and the through hole 14 is provided in a long hole shape.
  • the through-hole 14 is formed by making the direction along the diagonal L1 which connected each center of the through-hole 13 and the through-hole 14 into a major axis, and making the direction orthogonal to the diagonal L1 into a minor axis.
  • the fixed body 1 b includes a base 3 that constitutes an outer frame of the lens driving device 1. 0 and the case 40, a shaft 50 that is fixed to the base 30 and guides the movement of the holder 10 in the optical axis direction, and a coil 60 that forms a magnetic field by applying an electric current.
  • a rectangular plate-like magnetic plate 70 formed of a magnetic steel plate is fixed to the base 30 outside the coil 60 in the radial direction.
  • the base 30 is integrally provided with a resin material by injection molding.
  • the base 30 is provided with a base 31 constituting the lower surface of the outer frame of the lens driving device 1 and a support column 32 extending from the base 31 along the optical axis direction.
  • the base 31 is a plan view in the optical axis direction. Formed into a square.
  • pillar part 32 is provided in the four corners of the base 31, respectively.
  • An opening 33 that is a circular through hole is formed at the center of the base 31.
  • two magnetic plates 70 are fixed at two positions on the periphery of the base 30.
  • the case 40 constitutes a side surface and an upper surface of the outer frame of the lens driving device 1.
  • the case 40 is attached to the base 30 so as to surround the coil 60 from the outside in the radial direction. Further, on the upper surface of the case 40, two through holes 41 into which the shaft 50 is inserted, and the moving body 1a. And an opening 42 through which can be inserted. Further, a cutout portion 43 in which the magnetic plate 70 is disposed is provided on the side surface of the case 40.
  • the shaft 50 that is a guide member is fixed to the base portion 31 of the base 30 and is inserted into the through hole 41 of the case 40 so as to be held along the optical axis direction.
  • the holder 10 is inserted into the shaft 50.
  • the holder 10 is the shaft 5 By making it slidable with respect to zero, it becomes possible to move along the shaft 50. That is, the moving body 1a is guided by the shaft 50 and moves in the optical axis direction.
  • the coil 60 is wound around the four support portions of the base 30.
  • the coil 60 includes a first coil 61 that is wound in a predetermined direction and a second coil 62 that is wound in a direction opposite to the winding direction of the first coil 61. These first coil 61 and second coil When a current is applied to the coil 62, a magnetic field is generated around each of the first coil 61 and the second coil 62. The magnetic field and the magnet 20 generate a force that moves the moving body 1a in the optical axis direction.
  • a stepped portion 3 in which a case 40 is fitted to the base portion 31 of the base 30. 4 is provided.
  • the step portion 34 is formed in a substantially quadrangular shape.
  • the magnetic board 70 is provided among the square sides which comprise the step part 34.
  • the magnetic plate positioning part 35 for determining the radial position of the magnetic plate 70 is provided on the two sides where the magnetic plate 70 is disposed.
  • the magnetic plate positioning portion 35 is recessed inward in the radial direction from the side surface 34a of the step portion 34, and is formed in a concave shape that opens to the outer side in the radial direction and the upper side in the optical axis direction.
  • a magnetic plate positioning portion 44 that determines the radial position of the magnetic plate 70 is provided on the upper portion 43 a in the optical axis direction constituting the cutout portion 43 of the case 40. ing.
  • the magnetic plate positioning portion 44 is formed in a concave shape that is recessed radially inward from the upper portion 43 a of the case 40.
  • the radial position is determined, and the lower portion of the magnetic plate 70 in the optical axis direction contacts the magnetic plate positioning portion 35.
  • the radial position is determined. Accordingly, since the magnetic plate positioning portions 35 and 44 are in contact with both ends of the magnetic plate 70 in the optical axis direction, the magnetic plate 70 is prevented from being inclined with respect to the optical axis.
  • the base portion 31 of the base 30 is provided with a shaft positioning portion 36 that is a guide member positioning portion that determines the radial position of the shaft 50.
  • the shaft positioning portion 36 is formed in a bottomed hole shape for fixing the shaft 50.
  • the step portion 34, the magnetic plate positioning portion 35, and the shaft positioning portion 36 are formed on the base 3 It is molded integrally when injection molding 0.
  • the shaft 50 fixed to the shaft positioning part 36 of the base 30 of the fixed body 1b is inserted in the through holes 13 and 14 of the holder 10 of the movable body 1a.
  • the magnetic plate 70 is disposed only on one side of the center line with the diagonal line L1 formed by the through holes 13 and 14 as the center line.
  • the magnetic plate 70 is attached to the magnetic plate positioning portion 35 provided on the two sides of the step portion 34 on one side of the diagonal line L1 in the base portion 31 of the base 30.
  • the two magnetic plates 70 are respectively arranged at the center positions of the magnets 20 that are opposed to the magnetic plates 70 in the radial direction.
  • the direction of the attractive force F ⁇ b> 2 to the outside in the radial direction of the magnet 20 generated by the magnet 20 that is opposed to the radial direction of the magnet 20 is orthogonal.
  • the direction of the resultant force F3 between the attractive force F1 and the attractive force F2 is the diagonal line L1.
  • the inner peripheral surface constituting the through holes 13 and 14 of the holder 10 and the shaft 50 are always kept in contact with each other. That is, the two magnets 20 and the two magnetic plates 70 facing the magnets 20 in the radial direction allow the movable body 1a (holder 10) to be perpendicular to the diagonal line L1 that is one direction in the radial direction.
  • the urging means for urging is configured. By this biasing means, the through hole 1 of the holder 10 3 and 14 and the shaft 50 are maintained in pressure contact. And When the moving body 1a moves in the optical axis direction, the inner peripheral surface constituting the through holes 13 and 14 of the holder 10 and the shaft 50 slide, whereby the moving body 1a is guided by the shaft 50.
  • a one-dot chain line in FIG. 5 indicates the optical axis direction.
  • the moving body 1a is located at the home position. Specifically, the lower surface of the holder 10 of the moving body 1 a is in contact with the upper surface of the base portion 31 of the base 30. Mobile body 1a Is in the home position, no current is applied to the coil 60.
  • the moving body 1a moves to the position shown in FIG. 5B. Specifically, when a current is applied to the first coil 61 and the second coil 62, a magnetic field is generated around each of the first coil 61 and the second coil 62. A magnetic circuit is formed by the magnetic field and the magnet 20, and a force for moving the moving body 1a upward in the optical axis direction is generated. Then, the moving body 1a moves from the home position shown in FIG. 5A toward the upper side in the optical axis direction to the position shown in FIG. 5B.
  • the lens is moved to the on-focus position while moving the moving body 1a upward and downward in the optical axis direction.
  • the moving body 1a is biased in the direction of the resultant force F3 by the magnetic force generated between the two magnetic plates 70 and the magnets 20 facing the magnetic plates 70 in the radial direction. Is done.
  • the through holes 13 and 14 of the holder 10 and the shaft 50 inserted into the through holes 13 and 14 are brought into pressure contact. For this reason, even when the moving body 1a is moved in the vertical direction, a frictional drag acts on the gravity.
  • the moving body 1a is maintained at the on-focus position.
  • the filter 2 and the image sensor 3 are arranged on the base 30 side of the lens driving device 1. That is, the filter 2 and the image sensor 3 are disposed below the base 30 in the optical axis direction.
  • the Hall element 4 is disposed as a position detection element. Based on the signal from the Hall element 4, the position of the moving body 1a is detected.
  • a CPU Central Processing Unit
  • CP U5 processes the signal input from the image sensor 3 to obtain the contrast value of the captured image. Then, the position of the moving body 1a having the best contrast value is acquired as the on-focus position.
  • the CPU 5 drives the moving body 1a toward the on-focus position.
  • C The PU 5 monitors the signal from the hall element 4 and drives the moving body 1a until the signal from the hall element 4 is in a state corresponding to the on-focus position. Thereby, the moving body 1a is positioned at the on-focus position.
  • the lens driving device 1 of the present embodiment According to the lens driving device 1 of the present embodiment, the following effects can be obtained.
  • the holder 10 and the shaft 50 can be maintained in pressure contact with each other by biasing the holder 10 in one radial direction by the biasing means. Therefore, when the moving body 1a moves in the optical axis direction, the holder 10 slides on the shaft 50. Therefore, in the movement of the moving body 1a, the occurrence of rattling in the radial direction of the moving body 1a, particularly the holder 10, is suppressed. can do.
  • the holder 10 is maintained in pressure contact with the shaft 50 by the urging means, so that an external impact is applied to the lens driving device 1. Even so, it is possible to suppress the occurrence of rattling in the radial direction of the moving body 1a, particularly the holder 10.
  • the two magnets 20 adjacent to each other in the circumferential direction and the magnets 20 are biasing means. And two magnetic plates 70 opposed in the radial direction.
  • the magnet 20 The magnetic plate 70 also serves to maintain the movable body 1a in the optical axis direction and to urge the movable body 1a in one radial direction. Therefore, it is not necessary to prepare a separate member for configuring the urging means, so that the configuration of the lens driving device 1 can be simplified.
  • the two magnetic plates 70 constituting the urging means are diagonal lines L1 connecting the two through holes 13 and 14 provided in the holder 10 (diagonal lines connecting the two shafts 50).
  • the center line is arranged only on one side of the center line. According to this configuration, the magnet 2 Since the attractive force with respect to the magnetic plate 70 of 0 is generated only on one side of the diagonal line L1, the holder 10 can be more reliably biased in one radial direction.
  • the shaft 50 can support the holder 10 stably by making the force applied to the shaft 50 by the holder 10 substantially equal.
  • the holder 10 can be prevented from rotating in the circumferential direction in the gap between the outer peripheral surface of the shaft 50 and the inner peripheral surfaces of the through holes 13 and 14. Therefore, the gap between the outer surface of the magnet and the coil in the radial direction can be kept constant in the direction along the outer surface of the magnet.
  • the radial gap between the magnet 20 and the coil 60 can be set small, and the magnetic efficiency can be improved and the lens drive device 1 can be reduced in the radial direction.
  • the distance connecting the individual shafts 50 and the distance connecting the through holes 13 and 14 include the processing error of the shaft positioning portion 36 of the base 30, the assembly error when fixing the shaft 50 to the shaft positioning portion 36, the holder Due to the processing error of the ten through-holes 13 and 14, the above-mentioned distances may differ from each other. Therefore, when the size of the gap between the outer peripheral surface of the shaft 50 and the inner peripheral surfaces of the through holes 13 and 14 is excessively reduced, the shaft 50 may not be inserted into the through holes 13 and 14.
  • the through hole 14 is formed in a long hole shape along the diagonal line L1, the gap between the outer peripheral surface of the shaft 50 and the inner peripheral surface of the through hole 14 in the direction along the diagonal line L1.
  • the gap can be formed large. Therefore, even if there is a difference in the distance, the shaft 50 can be inserted into the through holes 13 and 14 respectively. As a result, the lens driving device 1 can be easily manufactured.
  • the shaft 50 can be inserted into the through holes 13 and 14, the holder 10 can move smoothly with respect to the shaft 50.
  • the outer peripheral surface of the shaft 50 and the through hole 14 are perpendicular to the diagonal line L1. Since the gap with the inner peripheral surface of the holder 10 is formed small, it is possible to suppress the shakiness of the holder 10 in the radial direction. In particular, since the direction perpendicular to the diagonal L1 is the same as the direction of the resultant force F3 of the attractive forces F1 and F2 of the magnet 20 with respect to the magnetic plate 70, the resultant force F3 indicates that the holder 10 moves excessively in the radial direction. Can be suppressed.
  • the magnetic force due to these distances can be reduced.
  • the difference can be reduced.
  • the optical axis of the lens can be prevented from tilting with respect to the image sensor 3.
  • the base plate 31 of the base 30 is provided with a magnetic plate positioning portion 35 that determines the radial position of the magnetic plate 70.
  • the size of the radial distance between the two magnetic plates 70 and the two magnets 20 can be set with high accuracy. Therefore, the radial gap between the magnetic plate 70 and the magnet 20 can be made equal to each other. As a result, the magnetic forces between the magnetic plate 70 and the magnet 20 can be made equal to each other, so that the bias applied to the shaft 50 by the holder 10 can be suppressed.
  • the shaft positioning portion 36 that determines the position of the shaft 50 is provided in the base portion 31 of the base 30, the radial position of the magnet 20 with respect to the coil 60 can be set with high accuracy. Therefore, the magnetic forces between the coil 60 and the four magnets 20 can be made equal to each other.
  • the magnetic plate positioning portion 35 and the shaft positioning portion 36 are integrally provided when the base 30 is injection molded, the magnetic plate positioning portion 35 and the shaft positioning portion 3 are provided. Compared with the case where 6 is provided by additional machining, the manufacturing process of the base 30 can be simplified, and the position accuracy of the shaft positioning portion 36 with respect to the magnetic plate positioning portion 35 can be improved. Therefore, the position of the magnetic plate 70 relative to the magnet 20 and the coil 6 Since the position of the magnet 20 with respect to 0 can be set with higher accuracy, the two magnets 20 and 2 The magnetic forces between the magnetic plates 70 can be made equal to each other more reliably, and the magnetic forces between the four magnets 20 and the coils 60 can be made more reliable to be equal to each other.
  • the lens driving device 1 is mounted on a camera module of a mobile phone.
  • An external impact may be applied to the lens driving device 1.
  • the external impact is greatly applied to the movable body 1a movable in the optical axis direction.
  • rattling of the magnet 20 with respect to the holder 10 may occur due to a force applied to the joint portion between the holder 10 and the magnet 20.
  • the moving body 1a is urged in one radial direction by the two magnets 20 and the two magnetic plates 70, the holder 1 due to an external impact is provided. It is possible to suppress the occurrence of rattling in the radial direction of zero. Therefore, it is preferable to mount the lens driving device 1 of the present embodiment on the portable device.
  • the lens drive device 1 of this embodiment although applied to the camera module mounted in a mobile telephone, the application range of this invention is not limited to this.
  • the present invention may be applied to a camera module mounted on another portable device.
  • the number of the magnetic plates 70 is not limited to this. Since it is sufficient that the moving body 1a can be urged in one radial direction by the magnetic plate 70 and the magnet 20, for example, an L-shaped magnetic plate 80 may be used as shown in FIG. Here, the areas of the portions of the magnetic plate 80 facing the two magnets 20 are preferably equal. With this configuration, the magnetic forces between the magnet 20 and the magnetic plate 80 facing the magnet 20 in the radial direction can be made equal to each other.
  • the end portion 81 of the magnetic plate 80 is positioned at the substantially central portion of the magnet 20. The position of is not limited to this.
  • the magnetic plate 80 is formed on the outer surface 20a of the magnet 20. The position of the end 81 may be set so as to face the entire surface.
  • the through holes 13 and 14 of the holder 10 are
  • the shape of the through holes 13 and 14 is not limited to this.
  • the through holes 13 and 14 may be recessed from the side surface of the holder 10 in the radial direction and open at both sides of the upper end surface and the lower end surface of the holder 10 in the optical axis direction.
  • the magnetic plate 70 is arranged only on one side of the diagonal line L1, but the arrangement of the magnetic plate 70 is not limited to this.
  • the magnetic plates 70 may be disposed on both sides of the diagonal line L1. In this case, it is desirable to form the magnetic plate 70 on one side of the diagonal line L1 smaller than the magnetic plate 70 on the other side of the diagonal line L1. Thereby, since the magnetic force between the magnet 20 and the magnetic plate 70 is biased, the moving body 1a can be biased to one side of the diagonal line L1.
  • the magnetic force between the magnet 20 and the magnetic plate 70 is used as the biasing means for biasing the moving body 1a in one radial direction.
  • the biasing means for biasing the moving body 1a in one radial direction.
  • a configuration in which the magnetic force of the two magnets 20 is larger than the magnetic force of the other two magnets may be used.
  • biases the side surface of the holder 10 to one direction of radial direction by other urging means, such as a spring, may be sufficient.
  • A) The perspective view which shows the disassembled perspective structure of a fixing body about the lens drive device of the embodiment.
  • the schematic diagram which shows the structure of the camera module carrying the lens drive device of the embodiment.
  • the top view which showed the arrangement

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Abstract

L'invention porte sur un dispositif de commande de lentille, dans lequel une apparition de jeu radial d'un support est supprimée. L'invention porte également sur un module de caméra dans lequel est monté le dispositif de commande de lentille. Un dispositif de commande de lentille comporte un support (10) destiné à supporter une lentille et capable de se déplacer dans la direction de l'axe optique de la lentille, des aimants (20) destinés à entourer la lentille dans une direction radiale et fixés au support (10) de façon à être séparés les uns des autres, des bobines entourant extérieurement les aimants (20), et des arbres (50) pour guider le déplacement du support (10) dans la direction de l'axe optique et limiter le déplacement du support (10) dans les directions radiales. Dans le dispositif de commande de lentille, un corps mobile (1a) est poussé dans l'une des directions radiales par les aimants (20) et des plaques magnétiques (7).
PCT/JP2009/064497 2008-11-18 2009-08-19 Dispositif de commande de lentille et module de caméra dans lequel est monté le dispositif de commande de lentille WO2010058639A1 (fr)

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JP2008294834A JP2012027043A (ja) 2008-11-18 2008-11-18 レンズ駆動装置及びレンズ駆動装置を搭載したカメラモジュール
JP2008-294834 2008-11-18

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WO2010058639A1 true WO2010058639A1 (fr) 2010-05-27

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011024805A1 (fr) * 2009-08-25 2011-03-03 三洋電機株式会社 Dispositif de commande de lentille et module d'appareil photographique le comportant
JP2013148699A (ja) * 2012-01-19 2013-08-01 Nidec Sankyo Corp レンズ駆動装置
WO2017104090A1 (fr) * 2015-12-18 2017-06-22 オリンパス株式会社 Unité optique et endoscope

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JP2003050343A (ja) * 2002-07-26 2003-02-21 Olympus Optical Co Ltd 光学素子駆動装置
JP2003338069A (ja) * 2002-05-21 2003-11-28 Toshiba Corp 光ヘッド装置
JP2005352233A (ja) * 2004-06-11 2005-12-22 Shicoh Eng Co Ltd レンズ駆動装置
JP2006091207A (ja) * 2004-09-22 2006-04-06 Nidec Sankyo Corp レンズ駆動装置

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Publication number Priority date Publication date Assignee Title
JP2003338069A (ja) * 2002-05-21 2003-11-28 Toshiba Corp 光ヘッド装置
JP2003050343A (ja) * 2002-07-26 2003-02-21 Olympus Optical Co Ltd 光学素子駆動装置
JP2005352233A (ja) * 2004-06-11 2005-12-22 Shicoh Eng Co Ltd レンズ駆動装置
JP2006091207A (ja) * 2004-09-22 2006-04-06 Nidec Sankyo Corp レンズ駆動装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011024805A1 (fr) * 2009-08-25 2011-03-03 三洋電機株式会社 Dispositif de commande de lentille et module d'appareil photographique le comportant
JP2013148699A (ja) * 2012-01-19 2013-08-01 Nidec Sankyo Corp レンズ駆動装置
WO2017104090A1 (fr) * 2015-12-18 2017-06-22 オリンパス株式会社 Unité optique et endoscope
JPWO2017104090A1 (ja) * 2015-12-18 2018-10-04 オリンパス株式会社 光学ユニット及び内視鏡
US11280994B2 (en) 2015-12-18 2022-03-22 Olympus Corporation Optical unit and endoscope

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