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公开(公告)号：US20190064400A1
公开(公告)日：2019-02-28
申请号：US16052158
申请日：2018-08-01
Inventor： TAKAAKI TANAKA
Abstract: The light source device of the projection display apparatus according to the present disclosure includes: solid-state light sources that individually emit blue light, green light, and red light; a plurality of dichroic mirrors that combine the blue light, the green light, and the red light having exited from the solid-state light sources; a first diffusion plate on which the combined light having been combined by the plurality of dichroic mirrors is incident; a dynamic diffusion plate that is disposed at a position at which the combined light having exited from the first diffusion plate converges and starts to diverge.
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公开(公告)号：US20180017856A1
公开(公告)日：2018-01-18
申请号：US15615444
申请日：2017-06-06
Inventor： TAKAAKI TANAKA , MANABU OKUNO
IPC: G03B33/12 , G02F1/1335 , G02B27/28 , G03B21/00 , G02B5/30
Abstract: A first light source device includes: a solid-state light source; a condenser element that collects light from the solid-state light source; a retardation plate that converts linearly polarized light into circularly polarized light; and a reflection plate, wherein the retardation plate is disposed at a point of incidence of collected light and divergent light between the condenser element and the reflection plate. A second light source device includes: a solid-state light source; a retardation plate that changes a polarization direction of light from the solid-state light source to make a ratio of polarization and s-polarization components of the light constant under control; and a dichroic mirror that separates the light from the retardation according to the polarization direction, wherein the retardation plate is disposed at a point of incidence of one of collected light and divergent light between the solid-state light source and the dichroic mirror.
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公开(公告)号：US20160238923A1
公开(公告)日：2016-08-18
申请号：US15006223
申请日：2016-01-26
Inventor： TAKAAKI TANAKA , MICHIHIRO OKUDA
CPC classification number: G03B21/208 , F21V9/08 , G02B26/007 , G02B27/141 , G03B21/008 , G03B21/204 , G03B21/2073 , H04N9/3114 , H04N9/3158 , H04N9/3167
Abstract: The light source apparatus of the present disclosure includes a solid-state light source, a dichroic mirror for reflecting blue excitation light emitted from the solid-state light source, a phase difference plate for receiving the excitation light reflected on the dichroic mirror, a fluorescent plate having a fluorescent region irradiated with the excitation light, which is reflected on the dichroic mirror and transmitted through the phase difference plate, to emit fluorescent light and a reflection region for reflecting the excitation light, and a plurality of condenser lenses that are disposed between the phase difference plate and the fluorescent plate and condense the excitation light and the fluorescent light. Among the plurality of condenser lenses, the condenser lens closest to the fluorescent plate is made of a glass material having a linear expansion coefficient of 32.5×10−7 or less.
Abstract translation: 本公开的光源装置包括固体光源，用于反射从固态光源发射的蓝色激发光的分色镜，用于接收在分色镜上反射的激发光的相差板，荧光 板，其具有被激发光照射的荧光区域，所述荧光区域被分色镜反射并透射通过所述相差板，以发射荧光和反射所述激发光的反射区域;以及多个聚光透镜， 相位差板和荧光板，并将激发光和荧光灯冷凝。 在多个聚光透镜中，最靠近荧光板的聚光透镜由线膨胀系数为32.5×10-7以下的玻璃材料制成。
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Patent Agency Ranking
公开(公告)号：US20190072840A1
公开(公告)日：2019-03-07
申请号：US16058407
申请日：2018-08-08
Inventor： TAKAAKI TANAKA
Abstract: The light source device according to the present disclosure includes: a solid-state light source that emits red light having a luminous flux; a solid-state light source that emits green light having a luminous flux; a solid-state light source that emits blue light having a luminous flux; a dichroic mirror that combines, into combined light, the red light, the green light, and the blue light having exited from the respective solid-state light sources; a dynamic diffusion plate on which the combined light having exited from the dichroic mirror is incident; and a luminous-flux splitting element that splits the luminous flux that having exited from the solid-state light sources for emitting at least one of the red light, the green light, and the blue light.
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公开(公告)号：US20190041735A1
公开(公告)日：2019-02-07
申请号：US16034338
申请日：2018-07-12
Inventor： TAKAAKI TANAKA
Abstract: A light source device has a blue solid-state light source, a red solid-state light source, a first retardation plate, a dichroic mirror, a phosphor plate, a second retardation plate, and a reflector. The first retardation plate causes light from the blue solid-state light source to have a phase difference. The dichroic mirror provides the light from the blue solid-state light source with polarization separation, receiving the light from the blue solid-state light source and light from the red solid-state light source in an identical direction. The phosphor plate emits fluorescence light, excited by one light, separated by the dichroic mirror. The second retardation plate converts, into circular polarization, polarization of the light from the red solid-state light source and other light, separated by the dichroic mirror. The reflector reflects light converted into circular polarization by being passed through the second retardation plate.
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公开(公告)号：US20180335685A1
公开(公告)日：2018-11-22
申请号：US15944451
申请日：2018-04-03
Inventor： MANABU OKUNO , TAKAAKI TANAKA
CPC classification number: G03B21/204 , F21S10/007 , F21V7/22 , F21V13/14 , F21Y2115/30 , G02B5/0816 , G02B27/141 , G02B27/283 , G03B21/2013 , G03B21/2066 , G03B21/2073 , G03B21/208
Abstract: The light source device and the projection display apparatus include a solid-state light source unit, a dichroic mirror, a fluorescent plate, a first wave plate, and a multi-reflection mirror. The solid-state light source unit emits first and second linearly polarized light rays at a predetermined ratio, the first and the second linearly polarized light rays being orthogonal to each other. The dichroic mirror separates the first and the second linearly polarized light rays, and combines blue light with yellow light. The fluorescent plate emits the yellow light to the dichroic mirror when the fluorescent plate is excited by the first linearly polarized light ray separated by the dichroic mirror. The first wave plate converts the second linearly polarized light ray separated by the dichroic mirror, into circularly polarized light. The multi-reflection mirror reflects the circularly polarized light to the dichroic mirror as the blue light.
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公开(公告)号：US20180217486A1
公开(公告)日：2018-08-02
申请号：US15806079
申请日：2017-11-07
Inventor： TAKAAKI TANAKA
CPC classification number: G03B21/2073 , G02B5/3083 , G02B26/008 , G02B27/141 , G02B27/283 , G02B27/286 , G03B21/005 , G03B21/16 , G03B21/2013 , G03B21/204 , G03B21/2066 , G03B21/208 , G03B21/28
Abstract: A light source device according to the present disclosure includes: a plurality of solid-state light source units; a polarization combination mirror for combining polarized lights incident from the plurality of the solid-state light source units; a half-wavelength plate having a strip shape, for converting a polarization azimuth of one of polarized lights coming from the polarization combination mirror; another half-wavelength plate for controlling proportions of intensities of polarization components of the polarized lights incident from the former half-wavelength plate; a dichroic mirror for separating the polarized lights incident from the latter half-wavelength plate; a phosphor plate for emitting light, upon being excited by the polarized light having been separated by the dichroic mirror.
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公开(公告)号：US20160274446A1
公开(公告)日：2016-09-22
申请号：US15058209
申请日：2016-03-02
Inventor： TAKAAKI TANAKA
CPC classification number: G03B21/204 , G03B21/16 , H04N9/3102 , H04N9/3111 , H04N9/3152 , H04N9/3158 , H04N9/317
Abstract: A light source apparatus of the disclosure includes a solid state light source; a substrate that has a phosphor region where a phosphor is formed that emits fluorescent light produced by exciting light supplied from the solid state light source and a color filter region where a color filter is formed inside the phosphor region; and an optical means that leads light from the phosphor region so as to be discharged to a first direction (i.e., a direction in which the exciting light enters) and so as to enter the color filter region from a second direction that is opposite to the first direction.
Abstract translation: 本公开的光源装置包括固态光源; 具有荧光体区域的基板，其中形成有荧光体，其发出由固体光源提供的激光产生的荧光，以及在荧光体区域内形成滤色器的滤色器区域; 以及将来自荧光体区域的光引出到第一方向（即，激发光入射的方向）排出的光学装置，并且从与第二方向相反的第二方向进入滤色器区域 第一个方向
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