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公开(公告)号：US20250013126A1
公开(公告)日：2025-01-09
申请号：US18896536
申请日：2024-09-25
Applicant: FUJIFILM Corporation
Inventor： Yasuhiro MORI , Hajime FUKUSHIMA
IPC: G03B17/14 , G03B5/00 , H02K41/035 , H04N23/54
Abstract: Provided is a lens barrel with which it is possible to suppress the influence of a disturbance magnetic field on a magnetic sensor. A coil that surrounds an outer periphery of a lens frame, magnetic force applying members that are disposed at a plurality of positions around the lens frame, and a magnetic sensor that detects an amount of movement of the lens frame are provided. In a plane orthogonal to an optical axis, the magnetic force applying members that are disposed on both sides adjacent to the magnetic sensor are disposed in postures in which a first angle (θ1, θ2) formed between a first straight line (L1) and a second straight line (L2) is smaller than 45°, the first straight line (L1) being a straight line passing through the magnetic sensor and the optical axis and the second straight line (L2) being a straight line orthogonal to surfaces of a first yoke and a second yoke of the magnetic force applying member that face each other.
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公开(公告)号：US20210088805A1
公开(公告)日：2021-03-25
申请号：US17116873
申请日：2020-12-09
Applicant: FUJIFILM Corporation
Inventor： Kouhei AWAZU , Hajime FUKUSHIMA
Abstract: An image shake correction device includes: a movable member; an imager that is fixed to the movable member; a support member that supports the movable member to be movable; and two movement restrictors that restrict a movement range of the movable member, each of the two movement restrictors includes a recess portion or a through-hole and an insertion member as defined herein, a shape of the recess portion or the through-hole is as defined herein, and a second diagonal line overlaps an extension line of a first diagonal line and the center of the light receiving surface overlaps a line connecting the first diagonal line and the second diagonal line as defined herein.
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公开(公告)号：US20230341702A1
公开(公告)日：2023-10-26
申请号：US18342866
申请日：2023-06-28
Applicant: FUJIFILM Corporation
Inventor： Kouhei AWAZU , Hajime FUKUSHIMA
CPC classification number: G02B27/646 , G03B5/00 , H04N23/687
Abstract: An image shake correction device includes: a movable member; an imager that is fixed to the movable member; a support member that supports the movable member to be movable in a direction along a circumferential direction of a circle whose center is a center of a light receiving surface of the imager; and two movement restrictors that restrict a movement range of the movable member, each of the two movement restrictors includes a recess portion or a through-hole and an insertion member as defined herein, a shape of the recess portion or the through-hole is as defined herein, and a second diagonal line overlaps an extension line of a first diagonal line and the center of the light receiving surface overlaps a line connecting the first diagonal line and the second diagonal line as defined herein.
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公开(公告)号：US20200225507A1
公开(公告)日：2020-07-16
申请号：US16831690
申请日：2020-03-26
Applicant: FUJIFILM Corporation
Inventor： Kouhei AWAZU , Hajime FUKUSHIMA
Abstract: An image shake correction device includes: a movable member; an imager that is fixed to the movable member; a support member that supports the movable member to be movable in a direction along a circumferential direction of a circle whose center is a center of a light receiving surface of the imager; and two movement restrictors that restrict a movement range of the movable member, each of the two movement restrictors includes a recess portion or a through-hole and an insertion member as defined herein, a shape of the recess portion or the through-hole is as defined herein, and a second diagonal line overlaps an extension line of a first diagonal line and the center of the light receiving surface overlaps a line connecting the first diagonal line and the second diagonal line as defined herein.
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公开(公告)号：US20180267328A1
公开(公告)日：2018-09-20
申请号：US15987127
申请日：2018-05-23
Applicant: FUJIFILM Corporation
Inventor： Hajime FUKUSHIMA
Abstract: An image shake correction device includes: a base member; a lens frame that holds an image shake correction lens, and is mounted on the base member so as to be movable in a first direction and a second direction perpendicular to the first direction within a plane perpendicular to an optical axis of the image shake correction lens; a plurality of expandable and contractible mooring members that moors the lens frame to the base member such that the lens frame is able to move in the first direction and the second direction; a bracket that is supported by the base member so as to be swingable around a first axis parallel to the first direction; and a driving unit that drives the lens frame in the first direction and the second direction, as defined herein.
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Patent Agency Ranking
公开(公告)号：US20230126917A1
公开(公告)日：2023-04-27
申请号：US18146862
申请日：2022-12-27
Applicant: FUJIFILM Corporation
Inventor： Yasuhiro MORI , Hajime FUKUSHIMA
IPC: G03B17/14 , H02K41/035 , H04N23/54 , G03B5/00
Abstract: Provided is a lens barrel with which it is possible to suppress the influence of a disturbance magnetic field on a magnetic sensor. A coil that surrounds an outer periphery of a lens frame, magnetic force applying members that are disposed at a plurality of positions around the lens frame, and a magnetic sensor that detects an amount of movement of the lens frame are provided. In a plane orthogonal to an optical axis, the magnetic force applying members that are disposed on both sides adjacent to the magnetic sensor are disposed in postures in which a first angle (θ1, θ2) formed between a first straight line (L1) and a second straight line (L2) is smaller than 45°, the first straight line (L1) being a straight line passing through the magnetic sensor and the optical axis and the second straight line (L2) being a straight line orthogonal to surfaces of a first yoke and a second yoke of the magnetic force applying member that face each other.
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公开(公告)号：US20210149210A1
公开(公告)日：2021-05-20
申请号：US17158443
申请日：2021-01-26
Applicant: FUJIFILM Corporation
Inventor： Hajime FUKUSHIMA , Shinji OTSUKA , Kouhei AWAZU
Abstract: An image shake correction device includes a movement restrictor that restricts movement of a movable member in directions X, Y, θ, and Z. The movement restrictor includes a movement prevention member that is fixed to a base of a support member and prevents the movable member from moving in the direction Z while sandwiching the movable member in cooperation with the support member, a hole portion formed in the support member, and an insertion member that is formed in the movable member and is inserted into the hole portion. A wide width portion of the insertion member has a size that overlaps with the base of the support member even in a state in which an abutting portion of the insertion member is positioned in any position in the hole portion.
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公开(公告)号：US20240329359A1
公开(公告)日：2024-10-03
申请号：US18603115
申请日：2024-03-12
Applicant: FUJIFILM Corporation
Inventor： Yasuhiro MORI , Hajime FUKUSHIMA
IPC: G02B7/08
CPC classification number: G02B7/08
Abstract: A lens device includes a lens barrel, a lens frame that is supported to be movable with respect to the lens barrel in an optical axis direction, a drive mechanism that moves the lens frame, a first permanent magnet member that is provided on the lens frame, a second permanent magnet member that is provided at a first end part of the lens barrel in the optical axis direction, and a third permanent magnet member that is provided at a second end part of the lens barrel in the optical axis direction.
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公开(公告)号：US20200329185A1
公开(公告)日：2020-10-15
申请号：US16912683
申请日：2020-06-25
Applicant: FUJIFILM Corporation
Inventor： Hajime FUKUSHIMA , Shinji OTSUKA
IPC: H04N5/232
Abstract: An image shake correction device (3) includes a movable member (2), a support member (1) including a movement prevention member (1B, 1C) for preventing the movable member (2) from being lifted, and a movement restriction unit that restricts a movement range of the movable member (2). The movement restriction unit includes a hole portion (11a) formed in the support member (1) and an insertion member (28a) inserted into the hole portion (11a) formed in the movable member (2). The insertion member (28a) has an abutting portion (283a) that moves in the hole portion (11a) in directions X, Y, and θ with the movement of the movable member (2), and a wide width portion (281a) which is wider than the abutting portion (283a).
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公开(公告)号：US20200228711A1
公开(公告)日：2020-07-16
申请号：US16831573
申请日：2020-03-26
Applicant: FUJIFILM Corporation
Inventor： Kouhei AWAZU , Hajime FUKUSHIMA
Abstract: An image shake correction device includes: a movable member; a support member that supports the movable member to be movable in three directions along a flat surface; an imager that is fixed to the movable member; and a first elastic member, a second elastic member, and a third elastic member as defined herein, the three directions are a first direction, a second direction and a third direction as defined herein, the movable member includes a first movable side locking portion, a second movable side locking portion and a third movable side locking portion as defined herein, the support member includes a first support side locking portion, a second support side locking portion and a third support side locking portion as defined herein, and each of first to third extension lines overlaps the center of the light receiving surface as defined herein.
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