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公开(公告)号：US20220299859A1
公开(公告)日：2022-09-22
申请号：US17835228
申请日：2022-06-08
Inventor： Aya KURITA , Michihiro OKUDA
Abstract: The light source device includes a first solid-state light source array emitting a first color light, a second solid-state light source array emitting a second color light, a third solid-state light source array emitting a third color light, and a light combiner for combining the first to third color lights respectively from the first to third solid-state light source arrays into a combined color light, and emitting a light flux of the combined color light in the same direction. The third solid-state light source array requiring the lowest target cooling temperature among the first to third solid-state light source arrays is disposed on a first side, and the first and second solid-state light source arrays are disposed on a second side, with an optical axis of the light flux emitted from the light combiner, as a boundary.
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公开(公告)号：US20170227837A1
公开(公告)日：2017-08-10
申请号：US15297852
申请日：2016-10-19
Inventor： Michihiro OKUDA
CPC classification number: G03B21/208 , G02B5/04 , G02B17/04 , G02B27/0927 , G02B27/0961 , G02B27/141 , G03B21/2013 , G03B21/204
Abstract: A projection image display device includes: laser diodes which emit excitation light; a top-hat diffusing element which diffuses and provides the excitation light with a top-hat intensity distribution; a phosphor which emits light when illuminated by the excitation light diffused by the top-hat diffusing element; an integrator rod which homogenizes the light emitted by the phosphor; DMDs which modulate the light homogenized by the integrator rod; and a projector which projects the light modulated by the DMDs.
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公开(公告)号：US20160223893A1
公开(公告)日：2016-08-04
申请号：US15004087
申请日：2016-01-22
Inventor： Michihiro OKUDA
CPC classification number: G02B27/141 , G02B26/008 , G03B21/2013 , G03B21/204 , G03B21/2066 , G03B33/06 , H04N9/3105 , H04N9/3158 , H04N9/3161
Abstract: A projection display apparatus includes: a laser light source which emits a blue light; a wheel which includes a light emitting body provided on a reflection surface of a substrate, the light emitting body emitting an emission light when the emitting body is irradiated with the blue light; a bandpass filter which is disposed on an optical path on which the emission light of the light emitting body travels; a plurality of optical modulating elements which modulate the blue light and the emission light from the light emitting body; and a projection unit which projects the light modulated by the plurality of optical modulating elements. The bandpass filter allows transmission of part of lights whose wavelength bands are 560 nm to 590 nm in the emission light of the light emitting body, and reflects other lights.
Abstract translation: 投影显示装置包括：发射蓝色光的激光源; 所述车轮包括设置在基板的反射面上的发光体，所述发光体在所述发光体被所述蓝色光照射时发射发光; 带通滤波器，其布置在所述发光体的发射光行进的光路上; 多个光调制元件，其调制来自发光体的蓝光和发射光; 以及投影单元，其投射由所述多个光调制元件调制的光。 带通滤波器允许在发光体的发射光中波长为560nm至590nm的部分光，并且反射其他光。
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公开(公告)号：US20230280643A1
公开(公告)日：2023-09-07
申请号：US18196782
申请日：2023-05-12
Inventor： Takanori YOGO , Michihiro OKUDA
CPC classification number: G03B21/2073 , G02B27/283 , G03B21/2033 , G03B21/2066
Abstract: A light source device includes: a first light source that emits light of first linear polarization; a half mirror that separates emitted light from the first light source into first light traveling to a first optical path and second light traveling to a second optical path; a polarized light combination mirror that combines the first light and the second light; an optical path change element that is disposed on the second optical path and reflects the second light and guides the second light to the polarized light combination mirror; and a retardation plate that is disposed on the second optical path and converts the second light into second linear polarization inclined with respect to the first linear polarization. The optical path change element is disposed such that point images of the first light and point images of the second light on the polarized light combination mirror are alternately arranged.
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Patent Agency Ranking
公开(公告)号：US20220308434A1
公开(公告)日：2022-09-29
申请号：US17838793
申请日：2022-06-13
Inventor： Michihiro OKUDA , Aya KURITA
IPC: G03B21/20
Abstract: A projection display apparatus of the present disclosure includes a solid-state light source array that includes a plurality of solid-state light sources, a first diffuser plate that diffuses light emitted from the solid-state light source array, a light uniformizing element that uniformizes the light diffused by the first diffuser plate, a light modulation element that modulates the light uniformized by the light uniformizing element with an image signal to generate image light, and a projection unit that projects the image light generated by the light modulation element. The first diffuser plate has different diffusion characteristics in a first direction and a second direction perpendicular to the first direction, and allows the light emitted from the solid-state light source array to be transmitted through the first diffuser plate to diffuse the light emitted to have an aspect ratio of an angle distribution that is approximately 1.
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公开(公告)号：US20160223890A1
公开(公告)日：2016-08-04
申请号：US15008187
申请日：2016-01-27
Inventor： Michihiro OKUDA
CPC classification number: G03B21/204 , G02B26/008 , G02B26/0833 , G02B27/141 , G02B27/149 , G03B21/2013 , G03B21/2066
Abstract: A light source apparatus according to the present disclosure includes: a first light source unit which emits a blue light in a first direction; a second light source unit which emits a blue light in a second direction which intersects with the first direction; a split/combining optical element which splits the blue lights emitted from the first light source unit and the second light source unit, into a first optical path and a second optical path; a light emitting body which is provided on the first optical path and emits an emission light in response to an excitation light; and a combining optical element which combines the first optical path and the second optical path into one optical path.
Abstract translation: 根据本公开的光源装置包括：第一光源单元，其沿第一方向发射蓝光; 第二光源单元，其沿与第一方向相交的第二方向发射蓝色光; 将从第一光源单元和第二光源单元发射的蓝色光分成第一光路和第二光路的分割/组合光学元件; 发光体，其设置在所述第一光路上，并且响应于激发光发射发射光; 以及将第一光路和第二光路组合成一个光路的组合光学元件。
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公开(公告)号：US20210191250A1
公开(公告)日：2021-06-24
申请号：US17128873
申请日：2020-12-21
Inventor： Aya KURITA , Michihiro OKUDA
Abstract: The light source device includes a first solid-state light source array emitting a first color light, a second solid-state light source array emitting a second color light, a third solid-state light source array emitting a third color light, and a light combiner for combining the first to third color lights respectively from the first to third solid-state light source arrays into a combined color light, and emitting a light flux of the combined color light in the same direction. The third solid-state light source array requiring the lowest target cooling temperature among the first to third solid-state light source arrays is disposed on a first side, and the first and second solid-state light source arrays are disposed on a second side, with an optical axis of the light flux emitted from the light combiner, as a boundary.
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公开(公告)号：US20170104984A1
公开(公告)日：2017-04-13
申请号：US15284276
申请日：2016-10-03
Inventor： Shigekazu YAMAGISHI , Michihiro OKUDA
CPC classification number: H04N13/31 , H04N9/3102 , H04N9/3111 , H04N9/3155 , H04N9/3161 , H04N9/3164 , H04N9/3167 , H04N9/3188 , H04N13/32 , H04N13/334 , H04N13/337 , H04N13/363 , H04N13/365 , H04N13/398 , H04N2213/001
Abstract: A projection-type image display apparatus of the present disclosure includes a fluorescent substance, a blue-color laser diode excitation optical system, a DMD, a projection optical system, a polarizing plate, and a depolarizing plate. The fluorescent substance has characteristics of emitting predetermined fluorescence in response to excitation light. The blue-color laser diode has a semiconductor laser that emits laser light of a wavelength with which the fluorescent substance is excited. The excitation optical system condenses light from the blue-color laser diode. The DMD is controllable by a signal from an external source. The projection optical system is an optical system that can enlarge and project an image displayed by the DMD. The polarizing plate is disposed on the output side of the projection optical system.
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公开(公告)号：US20160223895A1
公开(公告)日：2016-08-04
申请号：US15008197
申请日：2016-01-27
Inventor： Michihiro OKUDA , Hiroshi KITANO
CPC classification number: G03B21/2066 , G03B21/2033
Abstract: A light source apparatus and a projection display apparatus according to the present disclosure include: a laser light source; and a multiplexing reflection mirror having a first surface on which a partial reflection coating having a predetermined reflectance is formed, and a second surface on which a total reflection coating is formed, the first surface and the second surface being opposite to each other and formed in a parallel flat shape. The multiplexing reflection mirror is disposed so as to incline toward an optical path of an emission light from the laser light source such that the emission light is incident from first surface.
Abstract translation: 根据本公开的光源装置和投影显示装置包括：激光源; 以及多反射镜，其具有形成有反射率的部分反射膜的第一面，形成有全反射涂层的第二表面，所述第一表面和所述第二表面彼此相对并形成在 平行的平面形状。 复用反射镜被设置成朝向来自激光光源的发射光的光路倾斜，使得发射光从第一表面入射。
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