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公开(公告)号：US20240310714A1
公开(公告)日：2024-09-19
申请号：US18676051
申请日：2024-05-28
发明人： Chihaya SUGIYAMA
CPC分类号： G03B33/12 , G02B26/008 , G02B27/30 , G03B21/204 , G03B21/2066
摘要： A projection device includes an optical lens and a light source. The optical lens has an incident surface of light, a reflecting surface that has a concave curved surface and internally reflects light that has entered through the incident surface, and an exit surface of light that has been reflected by the reflecting surface. The light source that emits light that enters the optical lens.
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公开(公告)号：US12019364B2
公开(公告)日：2024-06-25
申请号：US18135605
申请日：2023-04-17
发明人： Chihaya Sugiyama
CPC分类号： G03B33/12 , G02B26/008 , G02B27/30 , G03B21/204 , G03B21/2066
摘要： A projection device includes an optical lens and a light source. The optical lens has an incident surface of light, a reflecting surface that has a concave curved surface and internally reflects light that has entered through the incident surface, and an exit surface of light that has been reflected by the reflecting surface. The light source that emits light that enters the optical lens.
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公开(公告)号：US11953818B2
公开(公告)日：2024-04-09
申请号：US18188508
申请日：2023-03-23
发明人： Yuichiro Iwama
CPC分类号： G03B21/204 , G03B21/006 , G03B33/12
摘要： A light source apparatus according to an aspect of the present disclosure includes a light emitter, a light guide member, a support member having a groove, and a position restriction member. The light guide member has a first surface and a second surface located at sides opposite from each other in a first direction, a third surface and a fourth surface located at sides opposite from each other in a second direction, and a fifth surface and a sixth surface located at sides opposite from each other in a third direction. The groove has a support surface facing the fourth surface, a first wall surface facing the fifth surface and separate from the fifth surface, and a second wall surface facing the sixth surface and separate from the sixth surface. The position restriction member includes a first placement section and a second placement section.
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公开(公告)号：US11934088B2
公开(公告)日：2024-03-19
申请号：US17355736
申请日：2021-06-23
申请人： Luminus, Inc.
发明人： Stephane Bellosguardo , Jinhui Zhai , Mark Pugh
CPC分类号： G03B21/204 , G03B21/006 , G03B21/008 , G03B21/2013 , G03B33/12
摘要： Light-emitting systems (e.g., projection systems) that comprise multiple light-emitting diodes (LEDs) are described herein. For example, the systems may include dual (i.e., two) primary red LEDs.
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公开(公告)号：US11914278B2
公开(公告)日：2024-02-27
申请号：US17734530
申请日：2022-05-02
发明人： Norikazu Yamamoto
CPC分类号： G03B33/12 , G03B21/008 , G03B21/204
摘要： A prism block includes a first prism having first, second and third surfaces, a second prism having a fourth surface parallel to the first surface, a fifth surface facing the second surface, and a sixth surface, a third prism having seventh and eight surfaces respectively facing the second and fifth surfaces, and an optical path separation coating disposed between the fifth and eighth surfaces. Illumination light incident on the third surface is reflected by the second surface, and is emitted from the first surface. Projection light incident on the first surface is emitted from the fourth surface. Imaging light incident on the fourth surface is reflected by the optical path separation coating, and is emitted from the sixth surface. A projection axis plane including optical paths of the illumination light and the projection light, and an imaging axis plane including an optical path of the imaging light intersect each other.
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公开(公告)号：US11815796B2
公开(公告)日：2023-11-14
申请号：US17706679
申请日：2022-03-29
发明人： Hidefumi Sakata
CPC分类号： G03B21/204 , G02B26/008 , G03B21/208 , G03B21/2013 , G03B21/2066 , G03B33/12 , H04N9/3161 , H04N9/3164
摘要： A light source apparatus includes a first light source that outputs first excitation light having a first wavelength band, a second light source that outputs second excitation light having a second wavelength band, a third light source that outputs third light having a third wavelength band, a wavelength converter that has a first surface and a second surface and converts the first excitation light and the second excitation light in term of wavelength and emits fourth light having a fourth wavelength band, and a light combiner that combines the third light outputted from the third light source with the fourth light emitted from the wavelength converter to generate illumination light. The first excitation light outputted from the first light source is incident on the first surface of the wavelength converter via the light combiner, and the second excitation light outputted from the second light source is incident on the second surface of the wavelength converter.
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公开(公告)号：US11762272B2
公开(公告)日：2023-09-19
申请号：US17969702
申请日：2022-10-20
申请人： Ricoh Company, Ltd.
CPC分类号： G03B21/208 , G03B21/204 , G03B33/12
摘要： A light-source device includes an excitation light source; a wavelength conversion unit to convert at least some of first color light into second color light; a light mixing element including a rod integrator to mix at least one of the first color light and the second color light from the conversion unit; and an optical element on an optical path of the first color light and having a reflecting surface. A center of the first color light on the reflecting surface intersects with only one of a first light flux of the first color light incident on and a second light flux of the first color light emitted from the conversion unit. An angle formed by a projection straight line of the first color light incident on an incident aperture of the integrator and a predetermined axial line of the incident aperture of the integrator is smaller than 40°.
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公开(公告)号：US20230288793A1
公开(公告)日：2023-09-14
申请号：US18319740
申请日：2023-05-18
发明人： Wei LI , Xiaoqiang GU
CPC分类号： G03B21/204 , G03B33/12
摘要： Provided is a laser optical path system, including: a laser, a beam combiner, a loop guide assembly, and a fluorescence assembly; wherein a light beam emitted by the laser includes a first light beam passing through the first region and irradiating to the fluorescence assembly, wherein the fluorescence assembly generates a fluorescence upon excitation of the first light beam, and the fluorescence is reflected to the second region by the fluorescence assembly, and is further reflected into a direction towards a light outlet by the second region; and the light beam emitted by the laser further includes a second light beam reflected to the loop guide assembly by the first region, wherein the second light beam is further reflected to the first region by the loop guide assembly, passes through the first region, and irradiates to the direction towards the light outlet in synchronization with the fluorescence.
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公开(公告)号：US11754915B2
公开(公告)日：2023-09-12
申请号：US17487101
申请日：2021-09-28
发明人： Yuya Kurata , Hiroshi Yamamoto
CPC分类号： G03B21/2073 , G03B21/204 , G03B21/2013 , G03B21/2053 , G03B33/12
摘要： A light source apparatus includes light sources emitting first and second polarized light, an optical element transmitting one of the polarized light and reflecting the other, a polarization rotator generating polarization rotated light from the first polarized light, a wavelength convertor converting the second polarized light into wavelength converted light, and a controller. The optical element generates emitted light by combining the wavelength converted light and polarization rotated light. The controller acquires respective deterioration amounts of the light sources, and controls, based on respective changes in light emission amounts from the light sources acquired from the deterioration amounts, the light emission amount from at least one of the light sources for making different respective change amounts of the light emission amounts from the light sources, or changing a ratio between respective light emission amounts from the light sources.
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公开(公告)号：US11720012B2
公开(公告)日：2023-08-08
申请号：US17426700
申请日：2020-01-22
发明人： Toshifumi Yasui
CPC分类号： G03B33/12 , G03B21/204
摘要： An optical system of the present disclosure includes: a first optical system that includes a first optical element having a plurality of divided regions having mutually different polarization actions, the first optical element being disposed at a first pupil position in the optical system, and that generates illumination light including a plurality of color light beams in mutually different wavelength bands; a plurality of light valves that each modulates at least one color light beam of the plurality of color light beams included in the illumination light; and a second optical system that includes a second optical element having a plurality of divided regions having mutually different polarization actions, the second optical element being disposed at a second pupil position conjugate to the first pupil position, and on which the plurality of color light beams modulated by the plurality of light valves is incident.
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