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公开(公告)号：US11347071B1
公开(公告)日：2022-05-31
申请号：US17181535
申请日：2021-02-22
IPC分类号： G02F1/1347 , G02B27/28 , G09G3/00 , G02B27/00
摘要： An optical assembly includes a first reflector and a second reflector. The first reflector is positioned to receive first light having a first polarization and provide the first light toward a first direction, and receive second light having the first polarization and provide the second light toward a second direction. The second reflector is positioned to receive the second light from the first reflector and reflect the second light back toward the first reflector. The first reflector receives light having a second polarization, having been reflected by the second reflector, and provide the light toward the first direction so that a first image corresponding to the first light and a second image corresponding to the second light are projected on a common image plane where at least a portion of the second image is located between two portions of the first image.
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公开(公告)号：US11327311B2
公开(公告)日：2022-05-10
申请号：US16738770
申请日：2020-01-09
发明人： Ying Geng , Jacques Gollier , Stephen James McNally , Brett Joseph Bryars , Scott Charles McEldowney
摘要： A head mounted display (HMD) includes a field curvature corrected (FC) display to mitigate field curvature in an image that is output to a user's eyes. The FC display includes elements that generate the image light and elements to mitigate field curvature from the image light. The FC display may include a display panel with lenses, a display panel with a reflective polarizer and reflective surface, or other optical elements. The FC display may include a pancake lens configuration including a polarized display with a quarter wave plate, a reflective mirror, and a polarization reflective mirror.
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公开(公告)号：US11281008B2
公开(公告)日：2022-03-22
申请号：US16870545
申请日：2020-05-08
发明人： Ying Geng , Jacques Gollier , Alexander Sohn , Matthew E. Colburn
IPC分类号： G02B27/01 , H04N13/332 , H01L27/32 , H04N13/344 , H04N13/324
摘要： An electronic display assembly includes a display element and a corrective element coupled to the display element. The display element has a first plurality of sub-pixels of a first type and a second plurality of sub-pixels of a second type. Two adjacent sub-pixels of the first plurality of sub-pixel are separated by a sub-pixel distance. The corrective element has a plurality of features configured to diffuse light emitted by the first plurality of sub-pixels such that an apparent distance between the two adjacent sub-pixels of the first type, viewed at a viewing distance away from the electronic display assembly, is less than the sub-pixel distance.
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公开(公告)号：US11269131B2
公开(公告)日：2022-03-08
申请号：US16820695
申请日：2020-03-16
发明人： Fenglin Peng , Junren Wang , Yuge Huang , Lu Lu , Yusufu Njoni Bamaxam Sulai , Ying Geng , Jacques Gollier , Barry David Silverstein , Yu-Jen Wang , Yun-Han Lee
IPC分类号： F21V8/00 , G02F1/13363 , G02F1/1335 , G02B5/30 , G02F1/13357
摘要： An optical device is provided. The optical device includes a first optical element configured to output an elliptically polarized light having one or more predetermined polarization ellipse parameters. The optical device also includes a second optical element including a birefringent material with a chirality, and configured to receive the elliptically polarized light from the first optical element and reflect the elliptically polarized light as a circularly polarized light.
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公开(公告)号：US11243397B2
公开(公告)日：2022-02-08
申请号：US16221319
申请日：2018-12-14
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：US11150473B2
公开(公告)日：2021-10-19
申请号：US16874134
申请日：2020-05-14
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：US11022784B1
公开(公告)日：2021-06-01
申请号：US16104453
申请日：2018-08-17
IPC分类号： G02B17/04 , G02B17/00 , G02B27/28 , G02F1/13357 , G02B27/01 , G02F1/1335 , G02F1/13363
摘要： Folding optics are used in conjunction with a lens system to reduce a back focal length of a head-mounted display. The lens system provides optical power to focus light from an optical display. The folding optics reflects light to fold upon itself to reduce a distance between the lens system and the optical display.
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公开(公告)号：US20200371370A1
公开(公告)日：2020-11-26
申请号：US16874265
申请日：2020-05-14
发明人： Andrew John Ouderkirk , Tanya Malhotra , Weichuan Gao , Ying Geng
IPC分类号： G02B27/28
摘要： An optical device includes a first polarization selective reflector; and 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 polarization toward the second polarization selective reflector and the second polarization selective reflector directs second light having a second polarization toward the first polarization selective reflector. A first plane defined by the first polarization selective reflector intersects a second plane defined by the second polarization selective reflector at a first angle.
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公开(公告)号：US20200150438A1
公开(公告)日：2020-05-14
申请号：US16738770
申请日：2020-01-09
发明人： Ying Geng , Jacques Gollier , Stephen James McNally , Brett Joseph Bryars , Scott Charles McEldowney
摘要： A head mounted display (HMD) includes a field curvature corrected (FC) display to mitigate field curvature in an image that is output to a user's eyes. The FC display includes elements that generate the image light and elements to mitigate field curvature from the image light. The FC display may include a display panel with lenses, a display panel with a reflective polarizer and reflective surface, or other optical elements. The FC display may include a pancake lens configuration including a polarized display with a quarter wave plate, a reflective mirror, and a polarization reflective mirror.
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公开(公告)号：US20200049872A1
公开(公告)日：2020-02-13
申请号：US16657337
申请日：2019-10-18
发明人： Fenglin Peng , Ying Geng , Yusufu Njoni Bamaxam Sulai , Mengfei Wang , Lu Lu , Jacques Gollier
IPC分类号： G02B5/30 , G02F1/1335 , G02B27/01 , G02F1/137 , G02B27/09
摘要： Disclosed herein are techniques for displaying images on multiple image planes in a near-eye display system. A switchable optical device includes a first polarizer configurable to polarize incident light into light of a first circular polarization state, and a second polarizer configurable to transmit light of a second circular polarization state and reflect light of the first circular polarization state into light of the first circular polarization state. The switchable optical device also includes a partial reflector positioned between the first polarizer and the second polarizer. The partial reflector is configured to transmit light from the first polarizer and reflect light from the second polarizer, where the reflected light and the light from the second polarizer have different polarization states. At least one of the first polarizer or the second polarizer includes a cholesteric liquid crystal (CLC) circular polarizer that is switchable by a voltage signal.
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