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公开(公告)号：US11789282B2
公开(公告)日：2023-10-17
申请号：US16812386
申请日：2020-03-09
发明人： Yi-Chien Lo
CPC分类号： G02B27/0955 , G02B27/126 , G02B27/283 , G03B21/008 , G03B21/208
摘要： A projection apparatus including an illumination system and a projection imaging system is provided. The illumination system is adapted to emit an illumination beam, and the illumination system includes a light source module and a light shaping module. The light source module is adapted to emit at least one beam. The light shaping module is disposed on the transmission path of the at least one beam. The at least one beam forms an illumination beam after passing through the light shaping module, and the illumination beam has a light imaging matching angle. The light shaping module includes at least one first lens element. The at least one first lens element is disposed on the transmission path of the at least one beam. The projection imaging system is disposed on a transmission path of the illumination beam. The projection apparatus is suitable for eliminating stray light and crosstalk of images.
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公开(公告)号：US11782335B2
公开(公告)日：2023-10-10
申请号：US17983276
申请日：2022-11-08
发明人： Pi-Tsung Hsu
CPC分类号： G03B21/204 , G02B26/008
摘要： A color wheel module includes a driving assembly, a substrate, a first wavelength conversion layer, and a second wavelength conversion layer. The substrate includes an outer periphery disposed around the central axis and a first surface perpendicular to the central axis, and has a first light conversion region located on the outer periphery and a second light conversion region located on the first surface. The first wavelength conversion layer is disposed on the first light conversion region. The second wavelength conversion layer is disposed on the second light conversion region. The first excitation beam is incident to the first light conversion region along a direction perpendicular to the central axis and is converted into a first color converted beam. The second excitation beam is incident to the second light conversion region along a direction parallel to the central axis and is converted into a second color converted beam.
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公开(公告)号：US11768425B2
公开(公告)日：2023-09-26
申请号：US17845997
申请日：2022-06-21
发明人： Wei-Hao Chen
CPC分类号： G03B21/142 , G03B21/145
摘要： An actuator, a projection device, and a projection method are provided. The projection method includes the following. A first optical element is disposed in a first frame body. At least one first driving assembly is disposed between a first base and the first frame body. A second optical element is disposed in a second frame body. At least one second driving assembly is disposed between a second base and the second frame body. The first driving assembly is controlled by a first signal to drive the first frame body, such that the first optical element reciprocally swing relative to the first base based on a first actuating axis and a second actuating axis. The second driving assembly is controlled by a second signal to drive the second frame body, such that the second optical element reciprocally swing relative to the second base based on a third actuating axis.
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公开(公告)号：US11758099B2
公开(公告)日：2023-09-12
申请号：US17361355
申请日：2021-06-29
发明人： Jyun-Lin Cian , Chi-Wei Lin , Yung-Chiao Liu , Chien-Chun Peng
CPC分类号： H04N9/3182 , G06T7/33 , G06T7/73 , H04N9/3147 , H04N9/3185 , G06T2207/10024 , G06T2207/20132 , G06T2207/20221
摘要： The disclosure provides an image blending method. The method includes projecting a plurality of images onto a projection surface, respectively, wherein an image of the first portion of the first image and an image of the first portion of the second image projected onto the projection surface overlap each other in the first overlapping area on the projection surface; the image parameters of all pixels of the first non-overlapping area and the second non-overlapping area are adjusted according to the position of the first non-overlapping area and the position of the second non-overlapping area, such that the black-level brightness of the first non-overlapping image in the first non-overlapping area of the first image and the black-level brightness of the second non-overlapping image in the second non-overlapping area of the second image are close to the black-level brightness of the first overlapping image in the first overlapping area.
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公开(公告)号：US11754838B2
公开(公告)日：2023-09-12
申请号：US17088586
申请日：2020-11-04
发明人： Hung-Ta Chien
CPC分类号： G02B27/0172 , G02B27/283 , G02B2027/0123
摘要： A near-eye optical system is configured to receive an image beam. The near-eye optical system includes a first optical waveguide, configured to expand the image beam in a first direction, and including a first surface, a second surface, a plurality of first reflecting slopes, and a plurality of second reflecting slopes. The first surface includes a first light-entering area. The second surface is opposite to the first surface. The second surface includes a concave area aligned with the first light-entering area, the concave area including a flat bottom surface, and a first inclined sidewall and a second inclined sidewall opposite to each other. The first reflecting slopes are disposed on the second surface, and the second reflecting slopes are disposed on the second surface.
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公开(公告)号：US11720009B2
公开(公告)日：2023-08-08
申请号：US17471154
申请日：2021-09-09
发明人： Hung-Wei Liu
CPC分类号： G03B21/204 , G02B27/141 , G02B27/283 , G03B21/208 , G03B21/2013
摘要： An illumination system configured to provide an illumination beam is provided. At a timing for blue light, first blue light penetrates a light homogenizing element, so that the illumination system outputs blue light of the illumination beam. At a timing for green light, the first blue light is converted into first green light via a phosphor wheel and penetrates the light homogenizing element. At the same time, second blue light is converted into second green light via the phosphor wheel and penetrates the light homogenizing element, so that the illumination system outputs green light of the illumination beam. A projection device is also provided. According to the illumination system and the projection device provided herein, each light source may be effectively utilized.
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公开(公告)号：US11715818B2
公开(公告)日：2023-08-01
申请号：US17849763
申请日：2022-06-27
发明人： I-Hua Chen
CPC分类号： H01L33/502 , G02B5/0205 , G02B27/0977 , G03B21/204 , G03B21/2066 , H01L33/405 , H01L33/46
摘要： A wavelength-converting element includes a substrate, a wavelength-converting layer and a diffuse reflection layer. The wavelength-converting layer is disposed above the substrate. The diffuse reflection layer is disposed between the substrate and the wavelength-converting layer. The diffuse reflection layer includes an inorganic binder and a plurality of diffuse reflection particles. The diffuse reflection particles are mixed with the inorganic binder. The inorganic binder includes an alcohol-soluble inorganic binder or a water-soluble inorganic binder. A projection apparatus using the wavelength-converting element and a manufacturing method of the wavelength-converting element are also provided.
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公开(公告)号：US11714341B2
公开(公告)日：2023-08-01
申请号：US17195658
申请日：2021-03-09
发明人： Wei-Chi Liu , Kai-Lun Hou
IPC分类号： G03B21/16
CPC分类号： G03B21/16
摘要： A projection device includes at least one heat source and a heat dissipation module. The heat dissipation module is connected to the heat source and is configured to dissipate heat energy generated by the heat source. The heat dissipation module includes a tank, at least one radiator, at least one cold plate, a cooling fluid, and a connection pipe. The connection pipe connects the tank, the radiator, and the cold plate, so that the cooling fluid flows in the heat dissipation module. The tank includes a pressure sensing device configured to measure a liquid level of the cooling fluid in the tank. Also, a tank is provided. The projection device provided in the disclosure can learn the liquid level of the tank in real-time, and the design cost is low.
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公开(公告)号：US20230221627A1
公开(公告)日：2023-07-13
申请号：US18087830
申请日：2022-12-23
发明人： Po-Han Lee , Chih-Sheng Wu
IPC分类号： G03B21/16
CPC分类号： G03B21/16
摘要： A heat dissipation module for dissipating heat from a heat source of a projection apparatus includes a thermoelectric module, a heat dissipation member, an absorption material, a transmission member and an insulating material. The thermoelectric module is disposed between the heat source and the heat dissipation member and has a cold side and a hot side opposite to each other, where the cold side is for dissipating heat from the heat source, and the hot side contacts with the heat dissipation member. The transmission member has a connection end and an evaporation end, wherein the connection end connects with the absorption material. The insulating material covers the absorption material and the transmission member. A projection apparatus uses the heat dissipation module. The heat dissipation module and the projection apparatus can prevent possibility of condensed moisture flowing into the system to damage electronic devices, and therefore have higher structural reliability.
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公开(公告)号：US11698553B2
公开(公告)日：2023-07-11
申请号：US17978964
申请日：2022-11-01
发明人： Chung-Yang Fang , Ping-Yen Chen , Chih-Jen Tsang , Chung-Wei Huang , Bo-Han Cheng , Wen-Chun Wang
IPC分类号： G02F1/133 , G02F1/13357 , G02F1/137 , G02F1/1335 , G02F1/13363
CPC分类号： G02F1/133603 , G02F1/13718 , G02F1/133607 , G02F1/133611 , G02F1/133638
摘要： A backlight module including a circuit substrate, a plurality of light-emitting devices, a first cholesteric liquid-crystal layer, and a second cholesteric liquid-crystal layer is provided. The light-emitting devices are disposed on the circuit substrate and electrically connected to the circuit substrate. The first cholesteric liquid-crystal layer is disposed on the light-emitting devices and overlapped with a light-emitting surface of each of the light-emitting devices. The second cholesteric liquid-crystal layer is disposed on the first cholesteric liquid-crystal layer and overlapped with the first cholesteric liquid-crystal layer. The first cholesteric liquid-crystal layer and the second cholesteric liquid-crystal layer respectively have a first chiral direction and a second chiral direction. A display apparatus adopting the backlight module is also provided.
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