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公开(公告)号：US20230140583A1
公开(公告)日：2023-05-04
申请号：US17731200
申请日：2022-04-27
申请人： Qisda Corporation
发明人： Chih-Shiung CHIEN , Ming-Kuen LIN , Yi-Ling LO , Tsung-Hsun WU
摘要： A light source module includes a first light-splitting element, a second light-splitting element, a first light source, a second light source and a third light source. The first light source is configured to emit first light having a first wavelength to the first light-splitting element in a first optical path direction. The second light source is configured to emit second light having the first wavelength to the second light-splitting element in a second optical path direction opposite to the second optical path direction. The third light source is configured to emit third light having a second wavelength in a third optical path direction substantially perpendicular to the first optical path direction. The first light source includes a first reflective layer, the second light source includes a second reflective layer, wherein the first reflective layer and the second reflective layer are configured to reflect light having the first wavelength.
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公开(公告)号：US11640105B2
公开(公告)日：2023-05-02
申请号：US17511530
申请日：2021-10-26
发明人： Chien-Ming Peng , Yen-Po Chang , Mao-Min Fu , Wei-Min Chien
摘要： A projector includes a light source module, a light valve, and a projection lens. The light source module is adapted to provide an illumination light beam and includes a base having first and second side surfaces, first and second color light-emitting units respectively disposed on the first and second side surfaces, and first and second heat dissipation structures respectively connected to the first and second color light-emitting units. The first and second heat dissipation structures are separated from each other and define an accommodation space together. The light valve is located on a transmission path of the illumination light beam and adapted to convert the illumination light beam into an image light beam. The projection lens is located on a transmission path of the image light beam and adapted to project the image light beam.
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公开(公告)号：US11635673B2
公开(公告)日：2023-04-25
申请号：US17160921
申请日：2021-01-28
发明人： Masahiro Ogawa
摘要： A luminescent light emitting device includes a base, a luminescent material layer provided on the base, a heat dissipating rib provided on an outer circumferential side of the luminescent material layer in such a manner as to rise erect from the base, and a collective lens fixed to the heat dissipating rib to seal in the luminescent material layer.
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公开(公告)号：US20230121391A1
公开(公告)日：2023-04-20
申请号：US18085580
申请日：2022-12-21
申请人： Lumus Ltd.
发明人： Yochay DANZIGER , Naamah Levin , Shai Eisenberg
摘要： An image projector includes a spatial light modulator (SLM) with a two dimensional array of pixel elements controllable to modulate a property of light transmitted or reflected by the pixel elements. An illumination arrangement delivers illumination to the SLM. A collimating arrangement collimates illumination from the SLM to generate a collimated image directed to an exit stop. The illumination arrangement is configured to sequentially illuminate regions of the SLM, each corresponding to a multiple pixel elements. A controller synchronously controls the pixel elements and the illumination arrangement so as to project a collimated image with pixel intensities corresponding to a digital image.
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公开(公告)号：US20230117624A1
公开(公告)日：2023-04-20
申请号：US17964929
申请日：2022-10-13
发明人： Tsung-Hsiang Fu
摘要： A wheel manufacturing method, a wheel, and a projection apparatus are provided. The wheel manufacturing method includes the following. First, a substrate is provided. Next, a thermal conductivity film is formed on at least one surface of the substrate; the thermal conductivity film is formed by using cold spray or supersonic laser deposition to contact multiple thermally conductive particles with the substrate, the thermally conductive particles in the thermal conductivity film occupy >95% of a volume of the thermal conductivity film, and the thermal conductivity film has a void rate of
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公开(公告)号：US11630381B2
公开(公告)日：2023-04-18
申请号：US16612725
申请日：2017-07-28
发明人： Zuqiang Guo , Fei Hu , Yi Li
摘要： An excitation light intensity control system, including a lighting part, an imaging part and a control part. The lighting part includes a light source; the imaging part includes a light modulator and a color conversion element; the excitation light emitted from the light source is imported to the light modulator for modulation; the modulated excitation light excites the color conversion element to produce multicolor excited light; the lighting part further includes a light recycling system used for recoupling part of the excitation light emitted from the light modulator to be incident to the light modulator; the control part includes a controller used for receiving original image data and controlling the intensity of the excitation light emitted from the light modulator and/or the light source.
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公开(公告)号：US20230110462A1
公开(公告)日：2023-04-13
申请号：US17965174
申请日：2022-10-13
发明人： Kiyoko TSUJI , Masato TANAKA , Hiroyuki MASUDA
摘要： A phosphor wheel unit includes a phosphor wheel that converts incident light into fluorescent light and emits the fluorescent light, a first heat exchanger having a plurality of fin members that is arranged and an airflow inlet surface through which an airflow generated by rotation of the phosphor wheel partially or entirely flows in, and a regulating member that regulates a direction of the airflow. The direction of the airflow regulated by the regulating member and a direction perpendicular to a rotation shaft of the phosphor wheel form an angle of between 0 degrees and 45 degrees on a surface perpendicular to an extending direction of a base material of the phosphor wheel. The airflow inlet surface is disposed intercepting the direction of the airflow regulated by the regulating member. The first heat exchanger cools a gas forming the airflow and the cooled gas returns to the phosphor wheel.
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公开(公告)号：US20230110183A1
公开(公告)日：2023-04-13
申请号：US17946058
申请日：2022-09-16
申请人： Yohei TAKANO , Makoto HIRAKAWA , Kazuhiro FUJITA , Takashi SASAKI
发明人： Yohei TAKANO , Makoto HIRAKAWA , Kazuhiro FUJITA , Takashi SASAKI
摘要： A light-source device, an image projection apparatus, and a display device. The light-source device includes a light source to emit light, an optical element having a lens array on one side or both sides of which a plurality of lenses are arrayed with distance from each other, the distance between a pair of vertices of an adjacent pair of the plurality of lenses of the optical element being equal to or less than one-quarter of width of light flux of the light incident on the optical element and a wavelength conversion element to convert a wavelength of the light emitted from the light source and passed through the optical element. An image projection apparatus includes the light-source device, a light mixing element to mix the light emitted from the light-source device to uniformize the light and an illumination optical system to emit the light uniformized by the light mixing element.
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公开(公告)号：US11624972B2
公开(公告)日：2023-04-11
申请号：US16610584
申请日：2018-04-27
申请人： DOCTER OPTICS SE
发明人： Sven Fröhlich , Sven B. Kiriczi
IPC分类号： G03B21/20
摘要： The present disclosure relates to a projection display, wherein the projection display comprises a support on which a projector lens array with a plurality of projector lenses is arranged, wherein on a side of the support facing away from the projector lens array, an object structure array with a plurality of object structures is arranged, wherein at least one projector lens is associated with one object structure, such that the projections of the object structures superpose through the projector lenses to form a full image.
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公开(公告)号：US20230100903A1
公开(公告)日：2023-03-30
申请号：US17952636
申请日：2022-09-26
摘要： A phosphor wheel device includes a phosphor wheel, a housing that accommodates the phosphor wheel, and a heat exchanger. A circulating gas flows between the housing and the heat exchanger. The housing includes a circulation fan, a first space in which the circulation fan is disposed, a second space in which gas is sent from the first space by the circulation fan, a third space in which the phosphor wheel is disposed, a first opening giving communication between the heat exchanger and the first space, a second opening giving communication between the first space and the second space, a third opening giving communication between the second space and the third space, and a fourth opening giving communication between the third space and the heat exchanger. The heat exchanger includes a circulation flow path through which circulating gas flows and an outside gas flow path through which outside gas flows.
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