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公开(公告)号：US10816875B2
公开(公告)日：2020-10-27
申请号：US16322546
申请日：2017-05-26
发明人： Kenzo Imai , Kazuo Shikama , Longji Bai , Nobuaki Watanabe , Shozo Iwato
摘要： To enable adjustment of a lens frame (lens barrel) independently, and also to enable a reduction in thickness along the optical axial direction. A blade driving device having a driving member for moving on a plane; a frame for containing the driving member; a thin blade supporting unit that protrudes to the outside, along the direction of movement of the driving member, from a portion of the thickness of the frame, and that has an opening, around the optical axis, along the direction of thickness of the frame; and a blade member that is supported on the blade supporting unit, and that is moved by the driving member, to advance into the opening; wherein the outer peripheral edge of the frame has a recessed portion at the position at which the blade supporting unit protrudes.
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公开(公告)号：US10754226B2
公开(公告)日：2020-08-25
申请号：US16471208
申请日：2017-11-24
发明人： Shozo Iwato , Koji Sawanobori , Kazuo Shikama , Kenzo Imai , Nobuaki Watanabe
IPC分类号： G03B9/36
摘要： A blade driving device comprising: a driving member; one or more blade members that are caused to undergo sliding motion by the driving member; a blade supporting unit for supporting the blade member slidably; and a frame for containing the driving member and a portion of the blade supporting unit, wherein the blade supporting unit comprises a blade chamber for containing a blade member between opposing thin plate members, along with an insertion portion that has an opening and that protrudes from a frame, wherein the opposing thin plate members are integrated together at least the tip end of the insertion portion.
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公开(公告)号：US10788731B2
公开(公告)日：2020-09-29
申请号：US16322422
申请日：2017-05-26
发明人： Kazuo Shikama , Shozo Iwato , Kenzo Imai , Longji Bai , Nobuaki Watanabe
摘要： Because a thin blade is disposed in a space that has a thickness in the optical axial direction, which contains a coil and a magnet, when the blade is driven the blade tends to become unstable, making smooth operation of the thin blade difficult. A blade driving device has a driving member; a frame that is provided with a driving frame chamber that contains the driving member; a blade supporting unit that has an opening and that structures a blade chamber that is separate from the driving frame chamber; and a blade member that is contained in the blade chamber, and that is moved by the driving member to advance into the opening.
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公开(公告)号：US11886108B2
公开(公告)日：2024-01-30
申请号：US17955548
申请日：2022-09-29
发明人： Kenzo Imai
IPC分类号： G03B9/10
CPC分类号： G03B9/10
摘要： A blade driving device is smaller and has fewer components. A blade driving device includes a base including a support shaft extending frontward, a cover having an opening, a blade located in a blade chamber defined between the base and the cover, and an actuator that moves the blade between a closing position to cover the opening and an opening position to uncover the opening. The cover covers a front of the base. The actuator includes a lever connected to the blade. The lever includes a lever body rotatable about the support shaft in the base, a connector connecting the lever body and the blade, and a protrusion protruding from the lever body frontward beyond the blade and facing the cover.
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公开(公告)号：US11611687B2
公开(公告)日：2023-03-21
申请号：US17402614
申请日：2021-08-16
发明人： Ryosuke Ushio , Kenzo Imai , Koji Sawanobori , Nobuaki Watanabe
摘要： A thin blade open-close device is incorporated in a limited space. A blade open-close device includes a base located on a module board including a lens unit, a partition located opposite to the module board from the base, and a cover plate located opposite to the base from the partition. The partition and the cover plate each have an opening aligned with an optical axis of the lens unit. The blade open-close device includes a blade movable in X-direction in a blade chamber defined between the cover plate and the partition, an actuator that moves the blade between a closing position to cover the openings and an opening position to uncover the openings, and a terminal plate extending in Z-direction. The terminal plate electrically connected to the actuator includes connectors at its end adjacent to the module board to be electrically connected to contacts on the module board.
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公开(公告)号：US10942421B2
公开(公告)日：2021-03-09
申请号：US16718118
申请日：2019-12-17
发明人： Kenzo Imai , Daisuke Kakemizu , Taizo Takiguchi
摘要： A blade driving device includes a blade for covering an opening for an imaging device operable through motor driving and a user manual operation. A blade driving device includes a base with an opening for an imaging device, a movable member movable relative to the base in X-direction and including a slider held on the base and movable in X-direction, a blade connected to the slider, and a knob on a side of the base opposite to the slider and operable to move the blade, a motor that moves the movable member in X-direction until the blade covers or uncovers the opening in the base, and a lead screw and a driving member that transmit rotation of the motor to the slider in the movable member to move the movable member.
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公开(公告)号：US11979653B2
公开(公告)日：2024-05-07
申请号：US17299784
申请日：2019-12-06
发明人： Kenzo Imai , Nobuaki Watanabe , Daisuke Kakemizu
摘要： An imaging device includes an image sensor, a blade operable to switch between a closed state to at least partially block light incident on the image sensor and an open state to allow light to be incident on the image sensor, a blade driver that drives the blade, a blade controller that controls the blade driver, an authentication processor that performs authentication based on a result of imaging performed by the image sensor, and an operation detector that detects an operation. The blade controller controls the blade driver to place the blade in the open state in response to a predetermined operation detected by the operation detector and to place the blade in the closed state in response to a predetermined time passing in the open state of the blade and no success in the authentication performed by the authentication processor.
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公开(公告)号：US11480850B2
公开(公告)日：2022-10-25
申请号：US16470528
申请日：2017-11-24
发明人： Shozo Iwato , Koji Sawanobori , Kazuo Shikama , Kenzo Imai , Nobuaki Watanabe
摘要： An optical unit has a lens frame that has a slit in a cylinder, and a blade driving device, comprising an insertion portion for insertion into the slit, wherein an opening, provided in the insertion portion, is disposed between lenses in a lens frame, wherein: the blade driving device comprises a frame that has a recessed lens frame storing portion with the insertion portion protruding; a cylinder of the lens frame comprises a pair of supporting faces that are perpendicular to the optical axis of the lens; and the lens frame storing portion of the frame has contact surfaces that contact each of a pair of supporting faces.
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公开(公告)号：US11143935B2
公开(公告)日：2021-10-12
申请号：US16699426
申请日：2019-11-29
发明人： Kenzo Imai , Nobuaki Watanabe , Daisuke Kakemizu
摘要： A technique prevents leakage of private images and/or images unintended by a user from an imaging device connected to a network, without a troublesome manual operation of opening and closing a cover. A blade operating device includes a blade that opens and closes an optical path of an imaging device connectable to a network, a blade driver that opens and closes the blade, and a controller that controls the blade driver. The controller controls the blade driver to close the blade when the imaging device is turned off.
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公开(公告)号：US11082594B2
公开(公告)日：2021-08-03
申请号：US16699433
申请日：2019-11-29
发明人： Kenzo Imai , Nobuaki Watanabe , Daisuke Kakemizu
摘要： An imaging device used in, for example, a smartphone controls a blade to avoid remaining open after unauthorized external access or a drop impact. The imaging device includes an image sensor, a blade operable to switch between a closed state in which the blade at least partially blocks light incident on the image sensor and an open state in which light is incident on the image sensor, a blade driver that drives the blade, and a blade controller that controls the blade driver. The blade controller determines whether the blade is in the closed state in a non-imaging mode in which imaging is off, and when determining that the blade is in the open state, the blade controller controls the blade driver to close the blade.
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