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公开(公告)号：US10162247B2
公开(公告)日：2018-12-25
申请号：US15890756
申请日：2018-02-07
Applicant: CANON KABUSHIKI KAISHA
Inventor： Jumpei Ishibiki , Hironori Imai
Abstract: A shutter device (113, 113a) includes a shutter plate (1) where an opening is formed, a light shielding member (2, 3) movable reciprocally between a closed state where the opening is closed and an open state where the opening is open, a motor (19), a drive member (11, 12, 111, 112) including a cam engaging portion (11b, 12b, 111b, 112b), rotatable in conjunction with the light shielding member, and a cam member (15-1, 15-2, 114, 115) that is to be driven by the motor to rotate, the cam member engages with the cam engaging portion, and includes a first cam surface (15ic, 114i, 115g) and a second cam surface (15hc, 114g, 115i), the first cam surface drives the drive member to move the light shielding member to the closed state, the second cam surface drives the drive member to move it to the open state.
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公开(公告)号：US11825198B2
公开(公告)日：2023-11-21
申请号：US17666370
申请日：2022-02-07
Applicant: CANON KABUSHIKI KAISHA
Inventor： Jumpei Ishibiki , Tatsuya Otoshi
CPC classification number: H04N23/687 , G02B27/646 , G03B5/04 , H01F7/081 , H04N23/50 , H04N23/6812 , G03B2205/0015 , G03B2205/0069
Abstract: A drive device that reduces a returning force to return to the center when moving a movable unit with respect to a fixed unit and suppresses a load of an actuator driving the movable unit is provided. The drive device includes a fixed unit, a movable unit that is disposed so as to be capable of relatively moving in a predetermined range within a plane with respect to the fixed unit, a plurality of rolling members that are disposed between the fixed unit and the movable unit, an actuator configured to drive the movable unit, and an urging unit configured to urge the movable unit to the fixed unit via the rolling members. The urging unit includes a magnet and a magnetic body. One of the magnet and the magnetic body is held by the movable unit, and another of the magnet and the magnetic body is held by the fixed unit. A range, in which the magnet can move when the actuator is driven to move the movable unit, does not protrude from an end of the magnetic body when viewed from a direction orthogonal to the plane.
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公开(公告)号：US10386699B2
公开(公告)日：2019-08-20
申请号：US15864277
申请日：2018-01-08
Applicant: CANON KABUSHIKI KAISHA
Inventor： Masahiro Takayama , Kazuya Karibe , Jumpei Ishibiki
Abstract: A shutter apparatus includes a shutter base plate having an opening, a light shield movable between a closed state for closing the opening and an open state for opening the opening, a cam member rotatable in a first angle range, a second angle range, and a third angle range between the first angle range and the second angle range, the cam member that rotates in the third angle range rotating the light shield, a motor configured to drive the cam member, a forcing member configured to force the cam member so as to rotate the cam member from the first angle range to the third angle range, and a restricting member configured to restrict the forcing member from forcing the cam member in at least part of the first angle range.
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公开(公告)号：US20230007177A1
公开(公告)日：2023-01-05
申请号：US17851257
申请日：2022-06-28
Applicant: CANON KABUSHIKI KAISHA
Inventor： Jumpei Ishibiki
IPC: H04N5/232
Abstract: A driving device that has a movable part which is translationally and rotationally movable within a plane with respect to a fixed part and is capable of properly restricting the translational movement and the rotational movement of the movable part while preventing the movable part from protruding outward. The driving device includes an actuator that drives the movable part, a first restricting unit configured to restrict translational movement of the movable part, and a second restricting unit configured to restrict rotational movement of the movable part. The second restricting unit is arranged at a location more remote from a center of rotation of the movable part with respect to the fixed part than the first restricting unit.
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5.发明授权公开(公告)号：US11108969B2
公开(公告)日：2021-08-31
申请号：US16680860
申请日：2019-11-12
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kaishi Ohashi , Jumpei Ishibiki , Masanori Sakai
Abstract: A shutter apparatus includes a shutter base plate having an opening, a light shielding member movable to provide a closed state for closing the opening and an open state for opening the opening, and at least one processor or circuit configured to perform operations of a control unit configured to control the light shielding member configured to reciprocate relative to the opening so as to move the light shielding member in a first direction for a forward exposure and in a second direction opposite to the first direction for a return exposure. The control unit varies an exposure correction amount of the light shielding member between the forward exposure and the return exposure.
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Patent Agency Ranking
公开(公告)号：US10539857B2
公开(公告)日：2020-01-21
申请号：US16019698
申请日：2018-06-27
Applicant: CANON KABUSHIKI KAISHA
Inventor： Jumpei Ishibiki , Chikara Aoshima
Abstract: A shutter apparatus includes a shutter base having an opening, a light shield configured to reciprocate between a closed state that closes the opening and an open state that opens the opening, a motor, a cam member configured to move the light shield when the cam member is rotated by the motor, and a restricting member configured to contact the cam member and to restrict the cam member from rotating in a first direction and in a second direction different from the first direction, the restricting member being rotatable and including a rotary damper engaged with the cam member. The restricting member is located at different positions in a rotating direction between when the restricting member restricts the cam member from rotating in the first direction and when the restricting member restricts the cam member from rotating in the second direction.
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公开(公告)号：US11825199B2
公开(公告)日：2023-11-21
申请号：US17851257
申请日：2022-06-28
Applicant: CANON KABUSHIKI KAISHA
Inventor： Jumpei Ishibiki
CPC classification number: H04N23/687 , H04N23/50 , H04N23/54
Abstract: A driving device that has a movable part which is translationally and rotationally movable within a plane with respect to a fixed part and is capable of properly restricting the translational movement and the rotational movement of the movable part while preventing the movable part from protruding outward. The driving device includes an actuator that drives the movable part, a first restricting unit configured to restrict translational movement of the movable part, and a second restricting unit configured to restrict rotational movement of the movable part. The second restricting unit is arranged at a location more remote from a center of rotation of the movable part with respect to the fixed part than the first restricting unit.
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公开(公告)号：US20220264013A1
公开(公告)日：2022-08-18
申请号：US17666370
申请日：2022-02-07
Applicant: CANON KABUSHIKI KAISHA
Inventor： Jumpei Ishibiki , Tatsuya Otoshi
Abstract: A drive device that reduces a returning force to return to the center when moving a movable unit with respect to a fixed unit and suppresses a load of an actuator driving the movable unit is provided. The drive device includes a fixed unit, a movable unit that is disposed so as to be capable of relatively moving in a predetermined range within a plane with respect to the fixed unit, a plurality of rolling members that are disposed between the fixed unit and the movable unit, an actuator configured to drive the movable unit, and an urging unit configured to urge the movable unit to the fixed unit via the rolling members. The urging unit includes a magnet and a magnetic body. One of the magnet and the magnetic body is held by the movable unit, and another of the magnet and the magnetic body is held by the fixed unit. A range, in which the magnet can move when the actuator is driven to move the movable unit, does not protrude from an end of the magnetic body when viewed from a direction orthogonal to the plane.
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9.发明申请公开(公告)号：US20200162654A1
公开(公告)日：2020-05-21
申请号：US16680860
申请日：2019-11-12
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kaishi Ohashi , Jumpei Ishibiki , Masanori Sakai
Abstract: A shutter apparatus includes a shutter base plate having an opening, a light shielding member movable to provide a closed state for closing the opening and an open state for opening the opening, and at least one processor or circuit configured to perform operations of a control unit configured to control the light shielding member configured to reciprocate relative to the opening so as to move the light shielding member in a first direction for a forward exposure and in a second direction opposite to the first direction for a return exposure. The control unit varies an exposure correction amount of the light shielding member between the forward exposure and the return exposure.
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公开(公告)号：US20190004398A1
公开(公告)日：2019-01-03
申请号：US16019698
申请日：2018-06-27
Applicant: CANON KABUSHIKI KAISHA
Inventor： Jumpei Ishibiki , Chikara Aoshima
Abstract: A shutter apparatus includes a shutter base having an opening, a light shield configured to reciprocate between a closed state that closes the opening and an open state that opens the opening, a motor, a cam member configured to move the light shield when the cam member is rotated by the motor, and a restricting member configured to contact the cam member and to restrict the cam member from rotating in a first direction and in a second direction different from the first direction, the restricting member being rotatable and including a rotary damper engaged with the cam member. The restricting member is located at different positions in a rotating direction between when the restricting member restricts the cam member from rotating in the first direction and when the restricting member restricts the cam member from rotating in the second direction.
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