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公开(公告)号：US11146731B2
公开(公告)日：2021-10-12
申请号：US16831708
申请日：2020-03-26
Applicant: FUJIFILM Corporation
Inventor： Kouhei Awazu , Yasuhiro Miwa
Abstract: There are provided an image shake correction device capable of improving correction accuracy of image shake by improving position detection accuracy of a movable member, and an imaging device including the image shake correction. An image shake correction device 3 includes a support member 1 that supports a movable member 2 to be movable in a plurality of directions along a flat surface, drive coils C1 to C3 fixed to the movable member 2, Hall elements H1 to H3 fixed to the movable member 2, drive magnets Mv1 to Mv3 fixed to the support member 1, and position detection magnets Mh1 to Mh3. In a case where two adjacent magnets of all the magnets including the drive magnets Mv1 to Mv3 and the position detection magnets Mh1 to Mh3 are focused as viewed in a direction Z perpendicular to the flat surface, the same poles of the two magnets face each other.
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公开(公告)号：US11064121B2
公开(公告)日：2021-07-13
申请号：US16831252
申请日：2020-03-26
Applicant: FUJIFILM Corporation
Inventor： Kouhei Awazu , Yasuhiro Miwa , Hajime Fukushima
Abstract: An image shake correction device includes: a movable member; a support member that supports the movable member to be movable in a plurality of directions along a flat surface; a circuit board that is fixed to the movable member; an imager that is mounted on the circuit board; a plurality of position detectors that is fixed to a rear surface of the circuit board opposite to a surface of the circuit board on which the imager is mounted to detect a position of the movable member in a movement direction of the movable member; magnetic force generators that face the plurality of position detectors respectively and are fixed to the support member; and adjustment members that adjust distances between the magnetic force generators and the support member.
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公开(公告)号：US11962904B2
公开(公告)日：2024-04-16
申请号：US17479488
申请日：2021-09-20
Applicant: FUJIFILM Corporation
Inventor： Kouhei Awazu , Yasuhiro Miwa , Takuro Abe
CPC classification number: H04N23/687 , G02B27/646 , G01R33/072 , G01R33/091 , G03B5/02 , G03B2205/0007
Abstract: A first image blur correction device includes an imaging-element holding-member to which an imaging-element is fixed, a housing that supports the imaging-element holding-member to be movable in a direction X perpendicular to an optical axis of a lens device, and a first drive mechanism that generates thrust of moving the imaging-element holding-member in the direction X. The first drive mechanism includes a first magnet that is fixed to the housing and in which a direction connecting both magnetic poles is parallel to the direction X, and a first coil that is fixed to the imaging-element holding-member to face the first magnet. In a state where the imaging-element holding-member is at a reference position where the optical axis of the lens device coincides with a center of the imaging-element, a position of a first magnet center in the direction X and a first coil central axis deviate from each other.
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4.发明授权公开(公告)号：US10895756B2
公开(公告)日：2021-01-19
申请号：US16912676
申请日：2020-06-25
Applicant: FUJIFILM Corporation
Inventor： Kohei Awazu , Yasuhiro Miwa
Abstract: Data sets DS4 to DS6 each consisting of plural linear functions obtained by approximating an output characteristic of a Y-axis rotation position detection Hall element H2 and a data set DS2 consisting of plural linear functions obtained by approximating an output characteristic of an and the X-axis position detection Hall element H1 are stored for each of plural positions in a direction X in a ROM of a memory. A system controller detects a position of a movable member in the direction X based on the data set DS2 and an output signal of the X-axis position detection Hall element H1, then selects the data set corresponding to the position among the data sets DS4 to DS6, and detects a position of the movable member in a direction Y based on the selected data set and an output signal of the Y-axis rotation position detection Hall element H2.
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