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Patent Agency Ranking
公开(公告)号：US20180149957A1
公开(公告)日：2018-05-31
申请号：US15800076
申请日：2017-11-01
Inventor： Makoto MAEDA
Abstract: A light source system includes an excitation light source, a fluorescent plate that emits fluorescence when exposed to the excitation light from the excitation light source, and a compartment storing the fluorescent plate. The compartment has a heat-receiving section and a heat-dissipation section thermally connected to each other. The heat-receiving section is located opposite a fluorescence light output side of the fluorescent plate, in the compartment. The heat-dissipation section is outside the compartment.
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2.发明申请公开(公告)号：US20210124246A1
公开(公告)日：2021-04-29
申请号：US17141503
申请日：2021-01-05
Inventor： Takashi IKEDA , Makoto MAEDA , Yusaku NISHIKAWA
Abstract: A wavelength conversion element includes a first phosphor region and a second phosphor region. The second phosphor region is disposed in a thickness direction of the first phosphor region and has a phosphor particle with a particle size different from a particle size of a phosphor particle positioned in the first phosphor region.
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公开(公告)号：US20210003912A1
公开(公告)日：2021-01-07
申请号：US17027869
申请日：2020-09-22
Inventor： Makoto MAEDA
Abstract: A light source system includes an excitation light source, a fluorescent plate that emits fluorescence when exposed to the excitation light from the excitation light source, and a compartment storing the fluorescent plate. The compartment has a heat-receiving section and a heat-dissipation section thermally connected to each other. The heat-receiving section is located opposite a fluorescence light output side of the fluorescent plate, in the compartment. The heat-dissipation section is outside the compartment.
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公开(公告)号：US20220141432A1
公开(公告)日：2022-05-05
申请号：US17575132
申请日：2022-01-13
Inventor： Makoto MAEDA , Sosuke OTANI
IPC: H04N9/31
Abstract: This projection display device includes: a light source unit emitting a white light along a first optical axis; a lighting unit provided on a second optical axis, the lighting unit splitting the white light into predetermined color lights and uniformizing an illuminance distribution of the predetermined color lights; an image generator including a display element modulating the predetermined color lights, and a projection lens projecting an image light including the predetermined color lights modulated along a third optical axis; at least one optical path switching unit selectively switching between reflection and transmission of the white light; a light diffuser including a diffusion optical system spreading the white light to a desired illumination area and projecting the spread white light as an illumination light; and a controller causing the at least one optical path switching unit to switch between emission of the image light and emission of the illumination light.
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公开(公告)号：US20170269462A1
公开(公告)日：2017-09-21
申请号：US15453339
申请日：2017-03-08
Inventor： Makoto MAEDA
Abstract: A light source device includes a solid light source, a transmissive fluorescent plate having a phosphor that is excited by excitation light for emitting fluorescent light in a traveling direction of the excitation light, and a color filter plate that cuts a part of a wavelength region of light supplied from the fluorescent plate for trimming the light into desirable color light. The light source device further includes a first reflective film disposed on a light path extending from the fluorescent plate to the color filter plate for reflecting at least a part of the excitation light.
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