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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：US12078815B1
公开(公告)日：2024-09-03
申请号：US17524601
申请日：2021-11-11
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Scott Charles McEldowney , Lu Lu , Babak Amirsolaimani
CPC classification number: G02B27/286 , G02B5/3016 , G02B5/3083 , G02B5/32 , G02B27/0172 , G03H1/0248 , G02B3/10
Abstract: A lens may include optically anisotropic molecules arranged in helical structures. The lens may include a first portion, a second portion located around the first portion, and a third portion located around the second portion. The first portion may include a first helical structure having a first helical pitch. The second portion may include a second helical structure having a second helical pitch distinct from the first helical pitch. The third portion may include a third helical structure having a third helical pitch distinct from the first helical pitch and the second helical pitch. The second helical pitch may have a length that is between a length of the first helical pitch and a length of the third helical pitch.
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公开(公告)号：US11960092B2
公开(公告)日：2024-04-16
申请号：US17959838
申请日：2022-10-04
Applicant: Meta Platforms Technologies, LLC
Inventor： Daniel Guenther Greif , Scott Charles McEldowney , Stephen John Holmes , Chadwick Brian Martin , Stephen James McNally , John Goward
CPC classification number: G02B27/0172 , G02B6/005 , G02B6/0085 , G02B6/26 , G02B26/0833 , G02B26/101 , G02B27/0176 , G02B2027/015 , G02B2027/0178 , H01L25/0753
Abstract: A light source or projector for a near-eye display includes a light source subassembly optically coupled to a waveguide concentrator. The light source subassembly may include several semiconductor chips each hosting an array of emitters such s superluminescent light-emitting diodes. The semiconductor chips may be disposed side-by-side, with their emitting sides or facets coupled to the waveguide concentrator, which provides a tight array of output light ports on a common output plane of the concentrator. The output diverging beams at the array of output light ports are coupled to a collimator, which collimates the beams and couples them to an angular scanner for scanning the collimated light beams together across the field of view of the display.
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公开(公告)号：US11808917B2
公开(公告)日：2023-11-07
申请号：US17246357
申请日：2021-04-30
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Babak Amirsolaimani , Scott Charles McEldowney , Andrew John Ouderkirk
CPC classification number: G02B26/00 , G02B5/3083 , G02B27/288 , G03H1/0248
Abstract: An optical assembly includes a first flexible membrane and a first optical element coupled with at least a first portion of the first flexible membrane. The optical assembly also includes a substrate having a curved surface. The first optical element is coupled to the curved surface of the substrate with the first flexible membrane. A method for making an optical assembly includes obtaining a first flexible membrane and a first optical element. The method includes coupling the first optical element with at least a first portion of the first flexible membrane and coupling, with the first flexible membrane, the first optical element to a curved surface of a substrate.
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公开(公告)号：US11624967B1
公开(公告)日：2023-04-11
申请号：US17834818
申请日：2022-06-07
Applicant: Meta Platforms Technologies, LLC
Inventor： Lu Lu , Andrew John Ouderkirk , Scott Charles McEldowney
Abstract: A hybrid lens includes a transmissive adaptive liquid lens and an optical element including liquid crystals. The adaptive liquid lens includes a layer of optical fluid on a substrate. A focal length of the adaptive liquid lens is adjustable. The optical element including liquid crystals is optically coupled with the adaptive liquid lens. The optical element including liquid crystals is configured to adjust a refractive index across the optical element including liquid crystals in conjunction with adjusting the focal length of the adaptive liquid lens so that the optical element reduces optical artifacts caused by the adaptive liquid lens.
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Patent Agency Ranking
公开(公告)号：US11561507B2
公开(公告)日：2023-01-24
申请号：US16273068
申请日：2019-02-11
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Oleg Yaroshchuk , Wai Sze Tiffany Lam , Scott Charles McEldowney , Lu Lu
Abstract: The invention relates to a method of creation of three-dimensional alignment patterns that includes providing a layer of optically recordable and polarization sensitive material having a thickness that is greater than, or equal to, a predefined thickness, and concurrently illuminating the optically recordable medium with two coherent beam of same or different polarization with predetermined angle between the beams such that the said beams impinge from the same side or from the opposite sides upon the layer of the recordable material. The invention further relates to polarization volume holograms based on the said alignment patterns and polarization holographic element including a single layer or a stack of several layers of optically recordable materials containing single or multiple polarization volume holograms.
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公开(公告)号：US20240231093A1
公开(公告)日：2024-07-11
申请号：US18094807
申请日：2023-01-09
Applicant: Meta Platforms Technologies, LLC
Inventor： Robin Sharma , Miaomiao Xu , Andrew Maimone , Scott Charles McEldowney
CPC classification number: G02B27/0172 , G02B6/0016 , G02B6/0036 , G02B6/005 , G02B2027/0174
Abstract: A light field display is composed of a light source assembly (LSA), a collimating lens, an incoupling section, a spatial light modulator (SLM), and gratings. The LSA includes point light sources that emit light at different time periods. The collimating lens collimates light from the point light sources. The incoupling section incouples the collimated light to a waveguide. The SLM spatially modulates the collimated light. The gratings outcouple spatially modulated light from the waveguide, and for any given point light source of the point light sources, the given point light source has a respective corresponding grating of the gratings that outcouples from the waveguide light that originated from the given point light source. The spatially modulated light output in each time period forms a respective virtual emitter in an eyebox, and over the different time periods the virtual emitters in aggregate form at least one virtual object.
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公开(公告)号：US11733445B2
公开(公告)日：2023-08-22
申请号：US17083370
申请日：2020-10-29
Applicant: Meta Platforms Technologies, LLC
Inventor： Yun-Han Lee , Junren Wang , Mengfei Wang , Babak Amirsolaimani , Lu Lu , Scott Charles McEldowney
CPC classification number: G02B5/3083 , G02B5/3016 , G02B6/005 , G02B27/0172
Abstract: An optical element includes a first birefringent medium layer with orientations of directors of first optically anisotropic molecules spatially varying with a first in-plane pitch and a first vertical pitch. The optical element also includes a second birefringent medium layer with orientations of directors of second optically anisotropic molecules spatially varying with a second in-plane pitch and a second vertical pitch. The second birefringent medium layer is optically coupled with the first birefringent medium layer and configured to reduce a diffraction of a light by the first birefringent medium layer. The first in-plane pitch is substantially the same as the second in-plane pitch, and the second vertical pitch is smaller than the first vertical pitch.
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公开(公告)号：US11714282B2
公开(公告)日：2023-08-01
申请号：US16506899
申请日：2019-07-09
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Wanli Chi , Chadwick Brian Martin , Scott Charles McEldowney , Maxwell Parsons , Stephen James McNally , Daniel Guenther Greif
IPC: G02B27/01
CPC classification number: G02B27/0172 , G02B27/0176 , G02B2027/0178
Abstract: A light source includes a first set of source elements and a second set of source elements. A respective set of source elements is disposed on a respective substrate and electrically coupled to a respective set of circuit pads formed on a respective top surface of the respective substrate by respective bond wires. At least a portion of the respective top surfaces face each other and are spaced apart from each other to accommodate at least some of the first set of source elements, at least some of the second set of source elements, and at least some of the bond wires. The display device that includes a light source configured to output image light, an optical assembly configured to collimate the image light, a scanning assembly configured to steer the image light, and an output device configured to output the image light for displaying images is also disclosed.
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公开(公告)号：US20230024805A1
公开(公告)日：2023-01-26
申请号：US17959838
申请日：2022-10-04
Applicant: Meta Platforms Technologies, LLC
Inventor： Daniel Guenther Greif , Scott Charles McEldowney , Stephen John Holmes , Chadwick Brian Martin , Stephen James McNally , John Goward
Abstract: A light source or projector for a near-eye display includes a light source subassembly optically coupled to a waveguide concentrator. The light source subassembly may include several semiconductor chips each hosting an array of emitters such s superluminescent light-emitting diodes. The semiconductor chips may be disposed side-by-side, with their emitting sides or facets coupled to the waveguide concentrator, which provides a tight array of output light ports on a common output plane of the concentrator. The output diverging beams at the array of output light ports are coupled to a collimator, which collimates the beams and couples them to an angular scanner for scanning the collimated light beams together across the field of view of the display.
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