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公开(公告)号：US10585334B2
公开(公告)日：2020-03-10
申请号：US16256169
申请日：2019-01-24
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshiro Ichihara
Abstract: An illumination apparatus includes a light source portion including a light emitter and a reflector configured to reflect light from the light emitter, a mover configured to move at least one of the light emitter and the reflector so that a relative distance between the light emitter and the reflector varies in order to change a light distribution angle of the light source portion, and a controller configured to control a position of at least one of the light emitter and the reflector via the mover based on a light emission amount of the light emitter.
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公开(公告)号：US20190235352A1
公开(公告)日：2019-08-01
申请号：US16256169
申请日：2019-01-24
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshiro Ichihara
Abstract: An illumination apparatus includes a light source portion including a light emitter and a reflector configured to reflect light from the light emitter, a mover configured to move at least one of the light emitter and the reflector so that a relative distance between the light emitter and the reflector varies in order to change a light distribution angle of the light source portion, and a controller configured to control a position of at least one of the light emitter and the reflector via the mover based on a light emission amount of the light emitter.
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公开(公告)号：US10097768B2
公开(公告)日：2018-10-09
申请号：US15412186
申请日：2017-01-23
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshiro Ichihara
IPC: H04N5/235
Abstract: A light emission control device capable of performing driving for changing an irradiating direction in correct timing during automatic bounce control. The light emission control device controls a light emission unit that irradiates light to an object. The posture information of at least one of an image pickup apparatus and the light emission unit is detected. For bounce shooting, there is selected one of a first mode for controlling the direction of irradiating the light according to distances from the image pickup apparatus to the object and the reflection object and a second mode for manually controlling the irradiating direction. In a case where the second mode has been selected, when a first operating portion is operated, the irradiating direction is controlled according to the detected posture information.
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公开(公告)号：US09686473B2
公开(公告)日：2017-06-20
申请号：US15166054
申请日：2016-05-26
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshiro Ichihara
CPC classification number: H04N5/2352 , G03B7/16 , G03B15/05 , G03B2206/00 , G03B2215/05 , G03B2215/0521 , G03B2215/056 , H04N5/2256 , H04N5/2354
Abstract: A camera system includes a lighting device comprising a movable unit including a flash unit, an imaging apparatus, a setting unit, an operation unit, and a control unit. The setting unit sets an irradiation position which is to be irradiated with light from the flash unit. The operation unit accepts an operation for starting photographing preparation operation. The control unit performs driving control of the movable unit. When the operation unit accepts an operation for starting photographing preparation operation, the control unit performs driving control of the movable unit for irradiating the set irradiation position with light from the flash unit. When the operation unit does not accept an operation for starting photographing preparation operation, the control unit does not perform driving control of the movable unit for irradiating the set irradiation position with light from the flash unit.
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公开(公告)号：US20200264493A1
公开(公告)日：2020-08-20
申请号：US16789958
申请日：2020-02-13
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshiro Ichihara
Abstract: A lighting device capable of suppressing an excessive temperature rise of a light emission section even when a fan is incapable of normal rotation. The light emission section emits light for illuminating an object. The fan cools the light emission section. A motor driving section drives the fan for rotation. A strobe microcomputer determines whether or not the motor driving section is abnormal, and controls a light emission interval of the light emission section in continuous light emission, based a result of the determination.
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Patent Agency Ranking
公开(公告)号：US20170351160A1
公开(公告)日：2017-12-07
申请号：US15608559
申请日：2017-05-30
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshiro Ichihara
CPC classification number: G03B7/16 , G03B15/05 , G03B2215/0521 , G03B2215/0528 , H04N5/2256 , H04N5/2354
Abstract: A technique that prevents a movable unit of a strobe device including a light emission section from unexpectedly interfering with an obstacle during rotation thereof. The movable unit is supported in a manner rotatable with respect to a device body about a first axis in a vertical direction, and rotatable about a second axis in a lateral direction. In bounce flash shooting, the movable unit irradiates light from the light emission section toward a ceiling to cause reflected light from the ceiling to be irradiated to an object. The movable unit is rotated such that the light emission section is oriented in the optimum irradiating direction. Whether to drive the movable unit in the lateral direction is determined based on a result of determining whether a rotational angle of the movable unit driven in the vertical direction exceeds a predetermined angle.
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公开(公告)号：US10958839B2
公开(公告)日：2021-03-23
申请号：US16753653
申请日：2018-10-02
Inventor： Takuma Kikuchi , Yoshiro Ichihara
Abstract: An object of the present invention is to provide a lighting device capable of properly performing a bounce motion and photography in the event of an unexpected motion. The lighting device of the present invention is a lighting device including a control unit that provides an instruction of an auto-bounce motion. When detecting an auto-bounce motion in S303, the control unit releases the brake of a motor for driving a light-emitting part and performs auto-bounce control in S304. When detecting that the bounce angle of the light-emitting part in the auto-bounce motion reaches a target position and the motor enters a stop period in S303, the control unit automatically switches to the application of an intermittently repeated regenerative brake to the motor. This can suppress a movement of the light-emitting part even in an accidental motion and perform a proper bounce motion with an easy manual operation.
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8.发明授权Camera system, imaging apparatus, lighting device capable of automatically changing the irradiation direction, and control method 有权相机系统，成像装置，能够自动改变照射方向的照明装置和控制方法公开(公告)号：US09380217B2
公开(公告)日：2016-06-28
申请号：US14312466
申请日：2014-06-23
Applicant: CANON KABUSHIKI KAISHA
Inventor： Yoshiro Ichihara
CPC classification number: H04N5/2352 , G03B7/16 , G03B15/05 , G03B2206/00 , G03B2215/05 , G03B2215/0521 , G03B2215/056 , H04N5/2256 , H04N5/2354
Abstract: A camera system includes a lighting device and an imaging apparatus. The lighting device includes a movable unit including a flash unit, a detection unit to detect information indicating the position of the movable unit, and a transmission unit to transmit position information based on information detected by the detection unit to the imaging apparatus. The imaging apparatus includes a calculation unit to calculate amount of light emission of the flash unit, a correction unit to perform correction of the amount of the light emission calculated by the calculation unit, and a reception unit to receive the position information from the lighting device. According to the position information received by the reception unit, the correction unit switches whether to perform correction of the amount of the light emission calculated by the calculation unit.
Abstract translation: 相机系统包括照明装置和成像装置。 照明装置包括可移动单元，其包括闪光单元，用于检测指示可移动单元的位置的信息的检测单元，以及基于由检测单元检测的信息将成像装置发送位置信息的发送单元。 成像装置包括计算单元，用于计算闪光单元的发光量;校正单元，用于执行由计算单元计算的发光量的校正;以及接收单元，用于从照明设备接收位置信息 。 根据由接收单元接收的位置信息，校正单元切换是否执行由计算单元计算出的发光量的校正。
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公开(公告)号：US20160072995A1
公开(公告)日：2016-03-10
申请号：US14848174
申请日：2015-09-08
Applicant: CANON KABUSHIKI KAISHA
Inventor： Teruyuki Kojima , Yoshiro Ichihara
CPC classification number: H04N5/2256 , G03B7/17 , G03B13/36 , G03B15/05 , G03B2206/00 , G03B2215/0521 , H04N5/23209 , H04N5/2354 , H04N2101/00
Abstract: To enable light emission shooting according to the condition of an imaging apparatus, an imaging system, which includes an illumination device capable of automatically driving a movable portion including a light emission unit to change a radiation direction of the light emission unit and an imaging apparatus, includes an acquisition unit configured to acquire information classifying a lens unit attached to the imaging apparatus, and a control unit configured to control the radiation direction of the light emission unit based on the information classifying the lens unit acquired by the acquisition unit.
Abstract translation: 为了根据成像装置的条件实现发光拍摄，包括能够自动驱动包括发光单元的可移动部分以改变发光单元的辐射方向的照明装置和成像装置的成像系统， 包括：获取单元，被配置为获取分类附接到所述成像装置的透镜单元的信息;以及控制单元，被配置为基于对由所述获取单元获取的所述透镜单元进行分类的信息来控制所述发光单元的辐射方向。
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公开(公告)号：US11979170B2
公开(公告)日：2024-05-07
申请号：US17725135
申请日：2022-04-20
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ryuta Suzuki , Yoshiro Ichihara
CPC classification number: H03M13/096 , H04L1/0061 , H04L1/08 , G06F11/1004
Abstract: An accessory and an electronic device enabling retransmission of data from the electronic device to the accessory when a checksum error occurs in the accessory. An accessory controller of the accessory determines whether or not a checksum received from the camera and a first checksum calculated from data received from the camera match. In a case where the checksums match, the accessory controller calculates a second checksum, whereas in a case where the checksums do not match, the accessory controller calculates a third checksum. The accessory controller transmits the second checksum or the third checksum to the camera according to a result of the determination.
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