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公开(公告)号：USD848518S1
公开(公告)日：2019-05-14
申请号：US29573059
申请日：2016-08-02
申请人： FUJIFILM Corporation
设计人： Yasuto Kuroda
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公开(公告)号：US10234751B2
公开(公告)日：2019-03-19
申请号：US15923803
申请日：2018-03-16
申请人： FUJIFILM Corporation
发明人： Yasuto Kuroda
摘要： Within a lens-tube main body, the light-shielding member is fixed to a second lens frame in a second portion opposite to a first portion in which an image forming panel is shifted from an optical axis with the optical axis positioned therebetween. Since the light-shielding member is fixed to the second lens frame in the second portion, heat caused by the unnecessary light is distributed from the first portion to the second portion within the light-shielding member. Accordingly, a local temperature rise is suppressed, and deformation of a lens-tube main body is suppressed. Accordingly, tilt of lenses due to deformation of the lenses does not occur, and deterioration in resolution of the entire image caused by the tilt of the lenses or the occurrence of focus position shift in a diagonal direction due to the occurrence of field curvature is suppressed.
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公开(公告)号：US11592731B2
公开(公告)日：2023-02-28
申请号：US17244716
申请日：2021-04-29
申请人： FUJIFILM Corporation
摘要： A projection lens has a first rotary tube, a first fixed tube at which the first rotary tube is rotatably mounted, a first protrusion portion that is provided at the first rotary tube and that protrudes from the first rotary tube, and a first abutment surface that is provided at the first fixed tube and that abuts upon the first protrusion portion. The projection lens includes a first engaging portion at which the first protrusion portion and the first abutment surface include first engaging portions that face each other in a direction of a first incidence-side optical axis and a first pressing portion that presses the first protrusion portion against the first abutment surface.
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公开(公告)号：US11520224B2
公开(公告)日：2022-12-06
申请号：US17244200
申请日：2021-04-29
申请人： FUJIFILM Corporation
IPC分类号： G03B21/30
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 comprises an optical system through which light passes, a second holding unit through which light parallel to a second optical axis passes and which is moved rotationally with respect to the housing, a third holding unit through which light parallel to a third optical axis obtained from bending of the second optical axis passes and which is moved rotationally with respect to the second holding unit, an electric drive unit that electrically controls rotational movement of the second holding unit with respect to the housing, rotational movement of the third holding unit with respect to the second holding unit, or drive of the optical system, and a cover part that covers the electric drive unit.
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公开(公告)号：USD896875S1
公开(公告)日：2020-09-22
申请号：US29653003
申请日：2018-06-12
申请人： FUJIFILM Corporation
设计人： Yasuto Kuroda
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公开(公告)号：US10719003B2
公开(公告)日：2020-07-21
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：US11448951B2
公开(公告)日：2022-09-20
申请号：US17245660
申请日：2021-04-30
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：US11199694B2
公开(公告)日：2021-12-14
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：USD857783S1
公开(公告)日：2019-08-27
申请号：US29653018
申请日：2018-06-12
申请人： FUJIFILM Corporation
设计人： Yasuto Kuroda
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公开(公告)号：US09936174B2
公开(公告)日：2018-04-03
申请号：US15695483
申请日：2017-09-05
申请人： FUJIFILM Corporation
发明人： Yasuto Kuroda
摘要： In a case where an image forming panel is disposed to be shifted with respect to an optical axis of a projection lens having a lens barrel holding the lens, in the lens barrel, the increase in temperature in a first part on a side to which the image forming panel is shifted is larger than that in a second part on an opposite side. A temperature adjustment section includes a cooling duct, a heating duct, a connecting duct, and blowers 27 and. Air, which is suctioned from an inlet of the cooling duct, is passed through the first part, a light source, and the second part, sequentially by the blowers. The air cools down the first part, and heats the second part. Thereby, the temperature distribution in the circumferential direction of the lens barrel becomes uniform, and deterioration of the projected image is suppressed.
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