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公开(公告)号：US20220357643A1
公开(公告)日：2022-11-10
申请号：US17871723
申请日：2022-07-22
申请人： FUJIFILM Corporation
发明人： Yasuto KURODA
摘要： A first holding member holds a first optical system and a first mirror, and has a first junction surface. A second holding member holds a second optical system and a second mirror, and has a second junction surface. A junction portion is configured such that, in a state where the first junction surface and the second junction surface are aligned with each other, the second holding member is capable of being shifted in a direction of both the junction surfaces and rotated around an optical axis, and makes it possible to perform optical axis alignment. An emission-side optical axis of the first optical system and an incidence-side optical axis of the second optical system are aligned with each other, and thus a U-shaped optical path is formed by the first and second optical systems.
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公开(公告)号：US20210208490A1
公开(公告)日：2021-07-08
申请号：US17206228
申请日：2021-03-19
申请人： FUJIFILM Corporation
发明人： Hitoshi SHIMIZU , Yasuyuki MIYATA , Yasuto KURODA
摘要： A projection device includes a drive housing that includes a protruding portion protruding from a central portion, a projection lens that includes a first rotation mechanism, and fans that draw in or discharge gas; the central portion includes a first A side surface that is provided in a first A direction X1 corresponding to one side in a first direction X and a second A side surface that is provided in a first B direction X2 corresponding to the other side in the first direction X; the protruding portion includes a first B side surface in the first A direction X1 and includes a second B side surface, which faces the projection lens, in the first B direction; and the fans face the second A side surface and the second B side surface.
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公开(公告)号：US20190101816A1
公开(公告)日：2019-04-04
申请号：US16193979
申请日：2018-11-16
申请人： FUJIFILM Corporation
发明人： Yasuto KURODA
摘要： A first holding member holds a first optical system and a first mirror, and has a first junction surface. A second holding member holds a second optical system and a second mirror, and has a second junction surface. A junction portion is configured such that, in a state where the first junction surface and the second junction surface are aligned with each other, the second holding member is capable of being shifted in a direction of both the junction surfaces and rotated around an optical axis, and makes it possible to perform optical axis alignment. An emission-side optical axis of the first optical system and an incidence-side optical axis of the second optical system are aligned with each other, and thus a U-shaped optical path is formed by the first and second optical systems.
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公开(公告)号：US20190025679A1
公开(公告)日：2019-01-24
申请号：US16140553
申请日：2018-09-25
申请人： FUJIFILM Corporation
发明人： Yasuto KURODA
CPC分类号： G03B21/142 , G02B7/021 , G02B7/022 , G02B7/023 , G02B7/182 , G02B27/0955 , G03B21/2066 , G03B21/28 , H04N9/3141
摘要： A projector includes a projection lens, a projector body, and an angle adjustment unit. In the projection lens, a U-shaped optical path is formed of optical axes CL1 to CL3. A lens barrel is a U-shaped barrel. The angle adjustment unit includes a fitting portion, a mounting flange, a fixing unit, a mount ring, and bearings. The projection lens is supported so as to be rotationally movable around the optical axis CL1. The fixing unit includes a mounting hole, a fixing screw, and a screw hole. The mounting hole is formed in the shape of an arc. The fixing screw is screwed with the screw hole through the mounting hole, so that the lens barrel is fixed to a housing.
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公开(公告)号：US20210255528A1
公开(公告)日：2021-08-19
申请号：US17244244
申请日：2021-04-29
申请人： FUJIFILM Corporation
摘要： A projection lens that is mounted on a housing of a projection device including an electro-optical element includes a first holding unit which is connected to the housing and through which light parallel to a first optical axis serving as an optical axis corresponding to luminous flux incident from the housing passes, a second holding unit through which light parallel to a second optical axis obtained from bending of the light parallel to the first optical axis passes and which is rotated with respect to the first holding unit in a rotatable range less than 360°, a first rotation control unit that controls rotation of the second holding unit, and a first electric drive unit. The first rotation control unit is provided on a first outer peripheral surface of one of the first holding unit and the second holding unit. The first electric drive unit is provided on a second outer peripheral surface of the other of the first holding unit and the second holding unit. The first rotation control unit and the first electric drive unit are in a relationship where the first rotation control unit and the first electric drive unit overlap with each other in an extending direction of the first optical axis, and the first rotation control unit and the first electric drive unit are spaced apart from each other in the rotatable range.
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公开(公告)号：US20210124164A1
公开(公告)日：2021-04-29
申请号：US17143751
申请日：2021-01-07
申请人： FUJIFILM Corporation
发明人： Yasuto KURODA
摘要： A projection apparatus includes: a fixed body that contains a light source and a light modulation element for spatially modulating light from the light source based on image data; a movable body that includes a reflecting member for reflecting light emitted from the fixed body, is rotatably supported by the fixed body around a rotation axis parallel to an incidence direction of the light onto the reflecting member, and is movable with respect to the fixed body; a fixed body side electrode; a movable body side electrode; a driving unit; and an optical member that is provided at the movable body and driven by the driving unit, and the fixed body includes a driving controller that controls the driving unit in a case where the movable body side electrode is electrically conducted with the fixed body side electrode.
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公开(公告)号：US20200050096A1
公开(公告)日：2020-02-13
申请号：US16660453
申请日：2019-10-22
申请人： FUJIFILM Corporation
发明人： Yasuto KURODA
摘要： A first holding member holds a first optical system and a first mirror, and has a first junction surface. A second holding member holds a second optical system and a second mirror, and has a second junction surface. A junction portion is configured such that, in a state where the first junction surface and the second junction surface are aligned with each other, the second holding member is capable of being shifted in a direction of both the junction surfaces and rotated around an optical axis, and makes it possible to perform optical axis alignment. An emission-side optical axis of the first optical system and an incidence-side optical axis of the second optical system are aligned with each other, and thus a U-shaped optical path is formed by the first and second optical systems.
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公开(公告)号：US20180217489A1
公开(公告)日：2018-08-02
申请号：US15938093
申请日：2018-03-28
申请人： FUJIFILM Corporation
发明人： Yasuto KURODA
CPC分类号： G03B21/28 , G02B7/02 , G02B7/021 , G02B13/16 , G02B27/0955 , G03B21/00 , G03B21/14 , G03B21/147
摘要： A first holding member holds a first optical system and a first mirror, and has a first junction surface. A second holding member holds a second optical system and a second mirror, and has a second junction surface. A junction portion is configured such that, in a state where the first junction surface and the second junction surface are aligned with each other, the second holding member is capable of being shifted in a direction of both the junction surfaces and rotated around an optical axis, and makes it possible to perform optical axis alignment. An emission-side optical axis of the first optical system and an incidence-side optical axis of the second optical system are aligned with each other, and thus a U-shaped optical path is formed by the first and second optical systems.
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公开(公告)号：US20170242213A1
公开(公告)日：2017-08-24
申请号：US15589554
申请日：2017-05-08
申请人： FUJIFILM Corporation
发明人： Yasuto KURODA
CPC分类号： G02B7/028 , G03B21/14 , G03B21/142 , G03B21/145 , G03B21/147 , G03B21/16 , H04N5/74
摘要： A projector includes an image forming panel 14 on which an image is formed, and a projection lens 15 which projects the image of the image forming panel 14. In a projector in which the center of the image forming panel 14 is fixed with being shifted in a direction opposite to a direction in which a central position of the projected image of the image forming panel 14 is deviated with respect to an optical axis L of the projection lens 15, a lens barrel 31 of the projection lens 15 includes heater 33 for heating a lens barrel portion on a side opposite to a direction, in which the image forming panel 14 is shifted, on the image forming panel 14 side from the diaphragm position 32 where an F-Number of the projection lens is determined. Cooler may be provided in place of the heater.
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公开(公告)号：US20210255529A1
公开(公告)日：2021-08-19
申请号：US17244459
申请日：2021-04-29
申请人： FUJIFILM Corporation
摘要： There is provided a projection lens that is mounted on a housing of a projection device including an electro-optical element. The projection lens includes a first holding frame through which light emitted from the housing passes, a second reflective part that refracts an optical axis of light emitted from the first holding frame and includes a pair of side surfaces facing each other, and a second holding frame that holds the second reflective part and includes a pair of first holes provided at positions corresponding to the pair of side surfaces; and each of the pair of side surfaces has a gap between itself and the second holding frame.
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