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公开(公告)号：US20240393600A1
公开(公告)日：2024-11-28
申请号：US18797414
申请日：2024-08-07
Applicant: Meta Platforms Technologies, LLC
Inventor： Babak Amirsolaimani
Abstract: A near-eye display has an image projector coupled to a lightguide for receiving and propagating image light provided by the image projector, the image light carrying an image to be displayed to a viewer. Field of view of the near-eye display may be expanded by providing a beam redirector downstream of the lightguide for controllably redirecting the image light m coordination with displaying different field of view portions by the image projector. To compensate the redirection of external light by the beam redirector, a second beam redirector may be provided upstream of the first redirector and the lightguide.
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公开(公告)号：US12093450B2
公开(公告)日：2024-09-17
申请号：US17972908
申请日：2022-10-25
Applicant: Meta Platforms Technologies, LLC
Inventor： Mohamed Tarek Ahmed El-Haddad , Babak Amirsolaimani , Francesco Larocca , Yang Yang , Junjie Hu
CPC classification number: G06F3/013 , G02B27/0172 , G02B2027/0174 , G02B2027/0178
Abstract: Image light is generated with a display light source. The image light is visible. An infrared light source emits infrared light. A scan directs the image light and the infrared light to an input coupler of a display waveguide and the display waveguide presents the image light to an eyebox region as a virtual image.
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公开(公告)号：US20240231479A9
公开(公告)日：2024-07-11
申请号：US17972908
申请日：2022-10-25
Applicant: Meta Platforms Technologies, LLC
Inventor： Mohamed Tarek Ahmed El-Haddad , Babak Amirsolaimani , Francesco Larocca , Yang Yang , Junjie Hu
CPC classification number: G06F3/013 , G02B27/0172 , G02B2027/0174 , G02B2027/0178
Abstract: Image light is generated with a display light source. The image light is visible. An infrared light source emits infrared light. A scan directs the image light and the infrared light to an input coupler of a display waveguide and the display waveguide presents the image light to an eyebox region as a virtual image.
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公开(公告)号：US11960090B2
公开(公告)日：2024-04-16
申请号：US17894054
申请日：2022-08-23
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Ying Geng , Brian Wheelwright , Jacques Gollier , Babak Amirsolaimani , Weichuan Gao , Yusufu Njoni Bamaxam Sulai
IPC: G02B27/01 , G02B3/08 , G02B5/02 , G02B5/18 , G02B5/30 , G02B27/10 , G02B27/28 , G02F1/1334 , G02F1/137 , H04N9/31
CPC classification number: G02B27/0172 , G02B3/08 , G02B5/0289 , G02B5/1819 , G02B5/3025 , G02B27/0176 , G02B27/10 , G02B27/106 , G02B27/283 , G02F1/1334 , G02F1/137 , H04N9/3152 , G02B2027/0178 , G02B2027/0187 , G02F1/13345
Abstract: An optical assembly a substrate having a first surface and a second surface that is opposite to and substantially parallel with the first surface. The first surface has a first curved profile and the second surface has a second curved profile. The optical assembly also includes a beam splitter on the first surface and a reflector on the second surface. The optical assembly is configured to transmit image light received at the first surface in an optical path that includes reflection at each of the reflector and the beam splitter before the image light is output from the second surface. The optical assembly is also configured to transmit ambient light received at the first surface such that the second light is output from the second surface without undergoing reflection at either the reflector or the beam splitter. A method of transmitting light through the optical assembly is also disclosed.
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公开(公告)号：US11846774B2
公开(公告)日：2023-12-19
申请号：US17697592
申请日：2022-03-17
Applicant: Meta Platforms Technologies, LLC
Inventor： Sihui He , Jacques Gollier , Maxwell Parsons , Babak Amirsolaimani , Wanli Chi , Daniel Guenther Greif , Renate Eva Klementine Landig , Xiayu Feng , Zhimin Shi , Nicholas John Diorio , Yang Yang , Giuseppe Calafiore , Fenglin Peng , Tanya Malhotra , Andrew John Ouderkirk
IPC: G02B27/00 , G02B27/01 , G06F3/01 , G02F1/29 , F21V8/00 , G02B6/35 , G02F1/1335 , G09G3/00 , G09G3/34 , G06T7/246 , H04N23/56 , G02F1/335 , G03H1/02 , G06F1/16 , H04N23/698 , G01B11/22 , G01S7/4865 , G01S17/10 , G02B27/42 , G02F1/33 , G06T3/40 , G02B27/44 , G02B26/08 , H04N23/10
CPC classification number: G02B27/0093 , G01B11/22 , G01S7/4865 , G01S17/10 , G02B6/005 , G02B6/0016 , G02B6/0031 , G02B6/0035 , G02B6/0066 , G02B6/3518 , G02B26/0816 , G02B27/0081 , G02B27/0172 , G02B27/0179 , G02B27/4205 , G02B27/44 , G02F1/133504 , G02F1/133526 , G02F1/292 , G02F1/294 , G02F1/33 , G02F1/335 , G03H1/0248 , G06F1/163 , G06F3/013 , G06T3/4038 , G06T7/246 , G09G3/002 , G09G3/3413 , H04N23/56 , H04N23/698 , G02B2027/0105 , G02B2027/0138 , G02B2027/0174 , G02B2027/0178 , G02B2027/0187 , G06T2207/30201 , G09G2310/0235 , H04N23/10
Abstract: A pupil-replicating lightguide includes a slab of transparent material, a switchable out-coupling grating for out-coupling portions of image light to propagate towards an eyebox, and a switchable tracking grating for redirecting tracking light carrying an eye image towards an eye tracking camera. One of the two gratings may be turned ON while the other is turned OFF, in a time-sequential manner, allowing the combined use of the pupil-replicating lightguide for carrying image light and eye tracking light.
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Patent Agency Ranking
公开(公告)号：US11774753B1
公开(公告)日：2023-10-03
申请号：US17531301
申请日：2021-11-19
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Giuseppe Calafiore , Ningfeng Huang , Andrew Maimone , Andrew Ouderkirk , Hee Yoon Lee , Maxwell Parsons , Scott Charles McEldowney , Babak Amirsolaimani , Pasi Saarikko , Wanli Chi , Alexander Koshelev , Barry David Silverstein , Lu Lu , Wai Sze Tiffany Lam , Gang Li , Stephan Lutgen , Francois Gerard Franck Olivier , David Massoubre
CPC classification number: G02B27/0081 , G02B27/0172 , G02B27/0944 , G02B27/1086 , G02B27/44 , G02B2027/0145 , G02B2027/0152
Abstract: A waveguide assembly is provided. The waveguide assembly includes a pair of pupil-replicating waveguides. The first pupil-replicating waveguide is configured for receiving an input beam of image light and providing an intermediate beam comprising multiple offset portions of the input beam. The second pupil-replicating waveguide is configured for receiving the intermediate beam from the first pupil-replicating waveguide and providing an output beam comprising multiple offset portions of the intermediate beam. The input beam may be expanded by the waveguide assembly in such a manner that pupil gaps are reduced or eliminated.
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公开(公告)号：US11567252B2
公开(公告)日：2023-01-31
申请号：US17505368
申请日：2021-10-19
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Andrew John Ouderkirk , Tanya Malhotra , Weichuan Gao , Ying Geng , Babak Amirsolaimani
Abstract: 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：US11467331B1
公开(公告)日：2022-10-11
申请号：US16666823
申请日：2019-10-29
Applicant: Meta Platforms Technologies, LLC
Inventor： Yun-Han Lee , Lu Lu , Mengfei Wang , Fenglin Peng , Junren Wang , Oleg Yaroshchuk , Yingfei Jiang , Babak Amirsolaimani , Scott Charles Mceldowney
Abstract: An optical device includes a display configured to generate an image light; and a waveguide optically coupled with the display and configured to guide the image light to an exit pupil of the optical device. The waveguide includes an in-coupling element configured to couple the image light into the waveguide, and an out-coupling element configured to decouple the image light out of the waveguide. The out-coupling element includes a grating having a diffraction efficiency gradient along a predetermined direction at a plane of the grating.
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公开(公告)号：US20240118535A1
公开(公告)日：2024-04-11
申请号：US18079427
申请日：2022-12-12
Applicant: Meta Platforms Technologies, LLC
Inventor： Brandon Michael Hellman Friedman , Babak Amirsolaimani
CPC classification number: G02B26/0816 , G02B5/3066 , G02B27/0172 , G06F1/163 , G02B7/182
Abstract: A tunable lens including a pair of reflectors is disclosed. At least one of the reflectors may be curved for contributing to the focusing or defocusing power of the lens. At least one of the reflectors is translatable for tuning the focusing/defocusing power. The reflectors may be configured in a pancake lens configuration where one of the reflectors is a 50/50 reflector and the other is a polarization selective reflector. Refractive elements may be disposed between the reflectors for providing more optical power to the lens, and/or for balancing optical aberrations.
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公开(公告)号：US20230393329A1
公开(公告)日：2023-12-07
申请号：US18188499
申请日：2023-03-23
Applicant: Meta Platforms Technologies, LLC
Inventor： Tingling Rao , Andrew John Ouderkirk , Xiayu Feng , Sihui He , Babak Amirsolaimani , Wanli Chi , Lafe Joseph Purvis, II , Jian Xu , Zhaocheng Liu
CPC classification number: G02B6/02038 , G02B6/34 , G02B6/425
Abstract: An optical element includes a waveguide body that is configured to guide light by total internal reflection from an input end to an output end, an input coupling structure located at the input end for coupling light into the waveguide body, and an output coupling structure located at the output end for coupling light out of the waveguide body, where the waveguide body includes a layer of an optically anisotropic organic solid crystal. Such an optical element may have low weight and exhibit good color uniformity while presenting a 2D diagonal field-of-view of at least approximately 10°.
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