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公开(公告)号：US10571785B2
公开(公告)日：2020-02-25
申请号：US16070942
申请日：2017-01-13
发明人： Noriaki Chikamoto , Hiroyuki Furui , Akira Nemura
摘要： Provided is a lens alignment adjustment device capable of suitably correcting an angle accuracy of an optical axis of a lens unit with respect to a projector main body. A lens alignment adjustment device is provided to a projector to retain a projection lens, and is capable of adjusting inclination of an optical axis of the projection lens with respect to the projector. The lens alignment adjustment device includes: a base plate which is retained in a predetermined posture with respect to the projector; and a lens fixing plate to which the projection lens is fixed. The lens fixing plate is rockably coupled to the base plate through intermediation of a first center pin orthogonal to an optical axis of the projection lens. First adjusting means for setting an inclination angle of the lens fixing plate with respect to the base plate about the first center pin is provided.
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公开(公告)号：US20190033696A1
公开(公告)日：2019-01-31
申请号：US16070942
申请日：2017-01-13
发明人： Noriaki Chikamoto , Hiroyuki Furui , Akira Nemura
摘要： Provided is a lens alignment adjustment device capable of suitably correcting an angle accuracy of an optical axis of a lens unit with respect to a projector main body. A lens alignment adjustment device is provided to a projector to retain a projection lens, and is capable of adjusting inclination of an optical axis of the projection lens with respect to the projector. The lens alignment adjustment device includes: a base plate which is retained in a predetermined posture with respect to the projector; and a lens fixing plate to which the projection lens is fixed. The lens fixing plate is rockably coupled to the base plate through intermediation of a first center pin orthogonal to an optical axis of the projection lens. First adjusting means for setting an inclination angle of the lens fixing plate with respect to the base plate about the first center pin is provided.
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公开(公告)号：US10146111B2
公开(公告)日：2018-12-04
申请号：US15655120
申请日：2017-07-20
摘要： A light adjuster includes: a first light shield and a second light shield disposed across a central axis of an emitted light beam; a drive section; a movement mechanism configured to move the first light shield and the second light shield using a driving force; a board; and a cover member combined with the board, in which the movement mechanism includes: a pinion gear; and a first gear and a second gear configured to be rotated in conjunction with a rotation of the pinion gear, the first light shield is attached to the first gear, the second light shield is attached to the second gear, and the cover member supports the first gear and the second gear so that the first gear and the second gear are rotatable, and is combined with the board to cover the pinion gear, the first gear and the second gear.
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公开(公告)号：US10989992B2
公开(公告)日：2021-04-27
申请号：US16798542
申请日：2020-02-24
发明人： Akira Nemura , Yutaka Arakawa , Tomohisa Iwazaki
摘要： An adjusting mechanism for adjusting a position of a display panel includes a first plate including a placing portion on which the display panel is placed, a second plate on which the first plate is placed, the second plate disposed on the opposite side of a display panel side with respect to the first plate, a third plate on which the second plate is placed, the third plate disposed on an opposite side of a first plate side with respect to the second plate, a first position adjusting actuator configured to move the first plate in a direction along a Z axis, a θx direction, and a θy direction, a second position adjusting actuator configured to move the second plate in a direction along an X axis and a θz direction, and a third position adjusting actuator configured to move the third plate in a direction along the Y axis.
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5.发明授权Projector with a lens shift mechanism configured to move a projection lens 有权具有配置成移动投影透镜的透镜移位机构的投影仪公开(公告)号：US09154755B2
公开(公告)日：2015-10-06
申请号：US14031627
申请日：2013-09-19
发明人： Akira Nemura
CPC分类号： G03B21/142 , G03B21/22 , H04N9/317
摘要： A lens shift mechanism includes a movable portion configured to support a projection lens and movable in two directions orthogonal to each other in a plane orthogonal to an optical axis; first and second operating units configured to generate drive forces for moving the movable portion in the two directions, respectively, first and second rotating portions to which the drive forces generated by the first and second operating units are transmitted, and a lock mechanism configured to be capable of switching between a locked state in which the two operating units are locked and an unlocked state in which the two rotating portions are rotatable, and the lock mechanism includes first and second locking members configured to lock the first and second rotating portions respectively and a lever mechanism configured to move the two locking members.
摘要翻译： 透镜移位机构包括可移动部分，其被配置为支撑投影透镜并且可以在与光轴正交的平面中彼此正交的两个方向上移动; 第一和第二操作单元，被配置为分别产生用于沿两个方向移动可动部分的驱动力，第一和第二旋转部分由第一和第二操作单元产生的驱动力被传递到该第一和第二旋转部分;锁定机构， 能够在两个操作单元被锁定的锁定状态和两个旋转部可旋转的解锁状态之间切换，并且锁定机构包括分别锁定第一和第二旋转部的第一和第二锁定构件，以及 杠杆机构构造成移动两个锁定构件。
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公开(公告)号：US10460424B2
公开(公告)日：2019-10-29
申请号：US15663215
申请日：2017-07-28
发明人： Shuji Narimatsu , Takateru Mori , Akira Nemura , Hiroyuki Furui
IPC分类号： G09G5/02 , G06T5/00 , G03B21/14 , G06T11/40 , G09G3/00 , G09G5/00 , G03B21/26 , H04N9/31 , G03B21/28 , G03B21/54
摘要： A projector includes a light source, a light modulator that has an image drawing region where an image is drawable and modulates light emitted from the light source by using an image drawn in the image drawing region, and a projection system that includes a projection lens and projects image light modulated by the light modulator. The projector further includes a lens shift mechanism that moves the projection lens and a control section that controls the image drawing performed by the light modulator, and the control section provides, based on the position of the projection lens, the image drawing region of the light modulator with a suppression region where the amount of the image light is suppressed.
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公开(公告)号：US09933695B2
公开(公告)日：2018-04-03
申请号：US15407608
申请日：2017-01-17
发明人： Hirofumi Okubo , Kazunori Maeta , Akira Nemura
IPC分类号： G03B21/14 , G01B11/00 , G03B21/20 , G02B26/06 , H04N9/31 , G01B11/26 , G01B11/27 , G02B7/00 , G02B27/28
CPC分类号： G03B21/2073 , G01B11/26 , G01B11/272 , G02B7/00 , G02B26/06 , G02B27/283 , G03B21/204 , G03B2205/0053 , H04N9/3105 , H04N9/3158 , H04N9/3167 , H04N9/3194
摘要： A position detection device includes: a sensor that includes a light emission unit and a light reception unit receiving light emitted from the light emission unit; a driving unit; a gear (transmission gear) that is disposed at a position facing the sensor and is rotated by power from the driving unit; and a control unit that drives the driving unit based on an amount of light received by the light reception unit and detected by the sensor.
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公开(公告)号：US20140092370A1
公开(公告)日：2014-04-03
申请号：US14031627
申请日：2013-09-19
发明人： Akira Nemura
IPC分类号： G03B21/14
CPC分类号： G03B21/142 , G03B21/22 , H04N9/317
摘要： A lens shift mechanism includes a movable portion configured to support a projection lens and movable in two directions orthogonal to each other in a plane orthogonal to an optical axis; first and second operating units configured to generate drive forces for moving the movable portion in the two directions, respectively, first and second rotating portions to which the drive forces generated by the first and second operating units are transmitted, and a lock mechanism configured to be capable of switching between a locked state in which the two operating units are locked and an unlocked state in which the two rotating portions are rotatable, and the lock mechanism includes first and second locking members configured to lock the first and second rotating portions respectively and a lever mechanism configured to move the two locking members.
摘要翻译： 透镜移位机构包括可移动部分，其被配置为支撑投影透镜并且可以在与光轴正交的平面中彼此正交的两个方向上移动; 第一和第二操作单元，被配置为分别产生用于沿两个方向移动可动部分的驱动力，第一和第二旋转部分由第一和第二操作单元产生的驱动力被传递到该第一和第二旋转部分;锁定机构， 能够在两个操作单元被锁定的锁定状态和两个旋转部可旋转的解锁状态之间切换，并且锁定机构包括分别锁定第一和第二旋转部的第一和第二锁定构件，以及 杠杆机构构造成移动两个锁定构件。
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公开(公告)号：US11537032B2
公开(公告)日：2022-12-27
申请号：US16683334
申请日：2019-11-14
发明人： Shinichi Wakabayashi , Akira Nemura , Takao Hirakura , Daisuke Yanagihara , Nozomi Fujishige , Kazunori Maeta
摘要： An optical path shifting device includes: a holding frame holding a rectangular glass plate; a support part supporting the holding frame in a swingable state; an actuator causing the holding frame to swing; a magnetic sensor detecting a position of the holding frame; and a thermistor detecting a temperature of the magnetic sensor. A drive signal processing circuit includes: an amplifier amplifying a reference signal to generate a drive signal and supplying the drive signal to the actuator; and a signal processing unit inputting the reference signal and an amplifier gain to the amplifier. The signal processing unit performs gain adjustment processing to correct an amplitude value found from an output from the magnetic sensor, based on an output from the thermistor, and to adjust the amplifier gain, based on a corrected value.
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公开(公告)号：US11131428B2
公开(公告)日：2021-09-28
申请号：US16798498
申请日：2020-02-24
发明人： Akira Nemura , Tomohisa Iwazaki , Yutaka Arakawa
摘要： An adjusting mechanism includes a movable plate having a substantially rectangular shape and including a long side and a short side, a position adjusting actuator configured to come into contact with and press the movable plate, a reference plate on which the movable plate is placed, and an elastic member coupling the movable plate and the reference plate, the elastic member being elastically deformable in a direction along an X axis. The position adjusting actuator adjusts a position of the movable plate with respect to the reference plate when the position adjusting actuator presses the movable plate in the direction along the X axis and moves the movable plate in the direction along the X axis and a θz direction.
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