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公开(公告)号：US20210080763A1
公开(公告)日：2021-03-18
申请号：US16810485
申请日：2020-03-05
发明人： Yusufu Njoni Bamaxam SULAI , Brian WHEELWRIGHT , Weichuan GAO , Alireza MOHEGHI , Ying GENG , Oleg YAROSHCHUK
IPC分类号： G02F1/137 , G02F1/1334
摘要： A display device includes a display having optically anisotropic molecules disposed between a front surface and a back surface. The display is configurable to either receive image light and diffuse the image light to output diffused image light from the front surface, or to transmit ambient light from the back surface to the front surface. The display device also includes an optical assembly that has a substrate, a reflector, and a beam splitter. The optical assembly is configurable to transmit a portion of the diffused image light at a first optical power via an optical path including reflections at the reflector and at the beam splitter and to transmit a portion of the ambient light output from the front surface of the display at a second optical power without reflection at the reflector. The second optical power is less than the first optical power.
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公开(公告)号：US20210072448A1
公开(公告)日：2021-03-11
申请号：US16734163
申请日：2020-01-03
发明人： Fenglin PENG , Ying GENG , Jacques GOLLIER , Garam YOUNG
摘要： An optical device for illuminating one or more portions of a spatial light modulator includes a waveguide, an array of tunable retarders, and a polarization selective optical element. A respective tunable retarder is optically coupled to receive light from the waveguide. The respective tunable retarder has a first state, which causes the respective tunable retarder to direct light having a first polarization in a first direction, and a second state, which causes the respective tunable retarder to direct light having a second polarization distinct from the first polarization in the first direction. The polarization selective optical element is located adjacent to the array of tunable retarders so that the light having the first polarization propagates from the polarization selective optical element in a second direction and the light having the second polarization propagates from the polarization selective optical element in a third direction distinct from the second direction.
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公开(公告)号：US20200371280A1
公开(公告)日：2020-11-26
申请号：US16862399
申请日：2020-04-29
发明人： Ying GENG , Jacques GOLLIER , Babak AMIRSOLAIMANI
IPC分类号： F21V8/00
摘要： An optical device for providing illumination light includes an optical waveguide and a plurality of polarization selective elements. The plurality of polarization selective elements is disposed adjacent to the optical waveguide so that a respective polarization selective element receives light in a first direction, and redirects a first portion of the light in a second direction. A second portion, distinct from the first portion, of the light undergoes total internal reflection, thereby continuing to propagate inside the optical waveguide.
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公开(公告)号：US20200341268A1
公开(公告)日：2020-10-29
申请号：US16854851
申请日：2020-04-21
发明人： Babak AMIRSOLAIMANI , Brian WHEELWRIGHT , Yusufu Njoni Bamaxam SULAI , Weichuan GAO , Fenglin PENG , Ying GENG
摘要： An optical lens assembly includes an optical lens and a Pancharatnam Berry Phase (“PBP”) element coupled to the optical lens. The PBP element is configured to provide chromatic aberration correction for the optical lens. An Abbe number of the PBP element and an Abbe number of the optical lens have opposite signs.
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公开(公告)号：US20220163808A1
公开(公告)日：2022-05-26
申请号：US17667395
申请日：2022-02-08
发明人： Jacques GOLLIER , Brian WHEELWRIGHT , Scott Charles MCELDOWNEY , Yusufu Njoni Bamaxam SULAI , Babak AMIRSOLAIMANI , Ying GENG
摘要： An optical assembly includes a partial reflector that is optically coupled with a first polarization volume holographic element. The partial reflector is capable of receiving first light having a first circular polarization and transmitting a portion of the first light having a first circular polarization. The first polarization volume holographic element is configured to receive the first portion of the first light and reflect the first portion of the first light as second light having the first circular polarization. The partial reflector is capable of receiving the second light and reflecting a first portion of the second light as third light having a second circular polarization opposite to the first polarization. The first polarization volume holographic element is configured to receive the third light having the second circular polarization and transmit the third light having the second circular polarization.
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公开(公告)号：US20210080739A1
公开(公告)日：2021-03-18
申请号：US16858331
申请日：2020-04-24
发明人： Ying GENG , Jacques GOLLIER , Weichuan GAO , Babak AMIRSOLAIMANI
摘要： A display device includes a light source, a spatial light modulator (SLM), and an optical assembly that includes a first reflective surface and a second reflective surface that is opposite to the first reflective surface. The light source is configured to provide illumination light. The optical assembly is configured to receive the illumination light. At least a first portion of the illumination light received by the optical assembly is transmitted through the first reflective surface toward the second reflective surface, is reflected by the second reflective surface toward the first reflective surface, is reflected by the first reflective surface toward the second reflective surface, and is transmitted through the second reflective surface. The SLM is configured to receive and modulate the portion of the illumination light transmitted through the optical assembly, and to output the modulated light. A method performed by the display device is also disclosed.
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公开(公告)号：US20200371387A1
公开(公告)日：2020-11-26
申请号：US16862396
申请日：2020-04-29
摘要： An optical device includes an optical waveguide and a plurality of reflective polarizers. The plurality of reflective polarizers include a first reflective polarizer and a second reflective polarizer disposed inside the optical waveguide so that the first reflective polarizer receives light propagating inside the optical waveguide, redirects a first portion of the light in a first direction, and transmits a second portion of the light in a second direction non-parallel to the first direction. The second reflective polarizer receives the second portion of the light from the first reflective polarizer, redirects a third portion of the light, and transmits a fourth portion of the light. A ratio between the first portion and the second portion of the light has a first value and a ratio between the third portion and the fourth portion of the light has a second value distinct from the first value.
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公开(公告)号：US20220035158A1
公开(公告)日：2022-02-03
申请号：US17505368
申请日：2021-10-19
摘要： An optical device includes a first polarization selective reflector; a second polarization selective reflector positioned relative to the first polarization selective reflector so that the first polarization selective reflector directs first light having a first nonplanar polarization toward the second polarization selective reflector and the second polarization selective reflector directs at least a portion of the first light toward the first polarization selective reflector as second light. The optical device includes a first reflector positioned relative to the first polarization selective reflector so that the first polarization selective reflector directs at least a portion of the second light having a second nonplanar polarization toward the first reflector as third light.
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公开(公告)号：US20210364833A1
公开(公告)日：2021-11-25
申请号：US17393396
申请日：2021-08-03
发明人： Ying GENG , Jacques GOLLIER , Babak AMIRSOLAIMANI
摘要： An optical device for providing illumination light includes an optical waveguide and a plurality of polarization selective elements. The plurality of polarization selective elements is disposed adjacent to the optical waveguide so that a respective polarization selective element receives light in a first direction, and redirects a first portion of the light in a second direction. A second portion, distinct from the first portion, of the light undergoes total internal reflection, thereby continuing to propagate inside the optical waveguide.
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公开(公告)号：US20210247615A1
公开(公告)日：2021-08-12
申请号：US17241921
申请日：2021-04-27
发明人： Ying GENG , Brian WHEELWRIGHT , Jacques GOLLIER , Yusufu Njoni Bamaxam SULAI , Babak AMIRSOLAIMANI , Weichuan GAO
IPC分类号： G02B27/01 , G02B3/08 , G02B5/02 , H04N9/31 , G02B5/18 , G02B5/30 , G02B27/10 , G02B27/28 , G02F1/1334 , G02F1/137
摘要： An optical assembly includes a reflector and a volume Bragg grating (VBG). The VBG is positioned for: (i) transmitting light having a first polarization and incident upon the VBG at an incident angle that is within a first angular range, (ii) reflecting light having the first polarization and incident upon the VBG at an incident angle that is within a second angular range distinct from the first angular range, and (iii) transmitting light having a second polarization different from the first polarization. The optical assembly is configured to receive first light, having the first polarization, and reflect the first light at the reflector and at the VBG before the first light is output from the optical assembly. The optical assembly is configured to receive second light, having the second polarization, and output the second light from the optical assembly without undergoing reflection at either the reflector or the VBG.
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