公开(公告)号：US12259553B2

公开(公告)日：2025-03-25

申请号：US17666227

申请日：2022-02-07

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Miaomiao Xu ,  Brian Wheelwright ,  Fenglin Peng ,  Ying Geng ,  Changwon Jang ,  Maxwell Parsons ,  Sihui He ,  Jacques Gollier

IPC: G02B27/01 ,  G02B27/14 ,  G02B27/28

Abstract: An illuminator for illuminating a display panel includes a lightguide with an array of buried slanted bulk reflectors that out-couple portions of the light beam propagating in the lightguide through one of the lightguide surfaces. Polarization beam-splitting slanted surfaces may be used to provide polarized output. Such an illuminator may be used with a reflective display panel operating by polarization. The beam-splitting slanted surfaces operate as a polarizer, providing polarized illuminating light. The light reflected by the reflective panel may propagate back through the illuminator, and the polarization beam-splitting slanted surfaces may operate also as analyzer.

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.

公开(公告)号：US20230367041A1

公开(公告)日：2023-11-16

申请号：US17744265

申请日：2022-05-13

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Andrew John Ouderkirk ,  Nagi Hosni Elabbasi ,  Liliana Ruiz Diaz ,  Sheng Ye ,  Ying Geng ,  Christopher Yuan Ting Liao ,  Taha Masood ,  Brent Bollman

IPC: G02B3/08 ,  G02B27/01 ,  G02B27/28 ,  G02B1/111

CPC classification number: G02B3/08 ,  G02B1/111 ,  G02B27/0172 ,  G02B27/283

Abstract: An example apparatus may include a display and an optical configuration configured to provide an image of a display, for example, in a head-mounted device. The optical configuration may include a Fresnel lens assembly including a Fresnel lens and a reflective polarizer. The Fresnel lens may have a structured surface including a plurality of facets, and there may be a step between pairs of neighboring facets. The reflective polarizer may include a plurality of reflective polarizer portions, where each reflective polarizer portion conforms to a corresponding facet of the Fresnel lens. The reflective polarizer may be configured to reflect a first polarization and transmit a second polarization of incident light. The optical configuration may form an image of the display viewable by a user when the user wears the apparatus. Other devices, methods, systems, and computer-readable media are also disclosed.

公开(公告)号：US11789280B2

公开(公告)日：2023-10-17

申请号：US17938639

申请日：2022-10-06

Applicant: Meta Platforms Technologies, LLC

Inventor： Brian Wheelwright ,  Kieran Connor Kelly ,  Ying Geng

IPC: G09G5/00 ,  G02B27/01 ,  G02B27/00 ,  G02B27/30

CPC classification number: G02B27/0179 ,  G02B27/0093 ,  G02B27/0172 ,  G02B27/30 ,  G02B2027/013 ,  G02B2027/014 ,  G02B2027/0123 ,  G02B2027/0187

Abstract: A Head Mounted Display (HMD) includes a pixel array having multiple pixels configured in a two-dimensional surface, each pixel providing multiple light beams forming an image provided to a user. The HMD also includes a first optical element configured to provide a central portion of a field of view for the image through an eyebox that limits a volume including a pupil of the user, and a second optical element configured to provide a peripheral portion of the field of view for the image through the eyebox, wherein the peripheral portion of the field of view comprises at least one steradian of a user's field of view at a resolution of at least fifteen arcminutes.

公开(公告)号：US11709308B2

公开(公告)日：2023-07-25

申请号：US16862403

申请日：2020-04-29

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Ying Geng ,  Jacques Gollier ,  Fenglin Peng ,  Weichuan Gao

IPC: F21V8/00 ,  G02B5/30 ,  G02B6/10 ,  G02B27/00 ,  G02B27/01 ,  G02B27/14 ,  G02B27/28 ,  G02F1/13 ,  G02B6/12

CPC classification number: G02B6/0056 ,  G02B5/3025 ,  G02B6/0028 ,  G02B6/0031 ,  G02B6/105 ,  G02B27/0093 ,  G02B27/0172 ,  G02B27/145 ,  G02B27/283 ,  G02B6/0025 ,  G02B2006/12116 ,  G02B2027/0125 ,  G02B2027/0138 ,  G02B2027/0174 ,  G02B2027/0178 ,  G02F1/1326

Abstract: An optical device includes a light source configured to provide illumination light and a waveguide. The waveguide has an input surface, an output surface distinct from and non-parallel to the input surface, and an output coupler. The waveguide is configured to receive, at the input surface, the illumination light provided by the light source and propagate the illumination light via total internal reflection. The waveguide is also configured to redirect, by the output coupler, the illumination light so that the illumination light is output from the output surface for illuminating a spatial light modulator.

公开(公告)号：US20230194866A1

公开(公告)日：2023-06-22

申请号：US17553635

申请日：2021-12-16

Applicant: Meta Platforms Technologies, LLC

Inventor： Fenglin Peng ,  Jacques Gollier ,  Liangyu Qiu ,  Xingzhou Tu ,  Ying Geng

IPC: G02B27/01 ,  G02B27/09 ,  G02B26/08

CPC classification number: G02B27/0172 ,  G02B27/0961 ,  G02B26/0816 ,  G02B2027/0178 ,  G02B2027/0112

Abstract: An illuminator for a display panel includes a slab of transparent material for propagating illuminating light between outer surfaces of the slab, an out-coupling grating supported by the slab for out-coupling portions of the illuminating light along one of the outer surfaces of the slab, and an amplitude and/or phase mask for forming an array of light spots from the out-coupled illuminating light portions downstream of the focusing element for illuminating pixels of the display panel. The array of light spots may be repeated at a distance from the mask due to Talbot effect. A beam redirecting element such as a tiltable reflector and/or a steering surface may be provided to shift the lateral location of the illuminating light spots.

公开(公告)号：US11675206B1

公开(公告)日：2023-06-13

申请号：US17828990

申请日：2022-05-31

Applicant: Meta Platforms Technologies, LLC

Inventor： Jacques Gollier ,  Ying Geng ,  Yusufu Njoni Bamaxam Sulai ,  Fenglin Peng ,  Brian Wheelwright

IPC: G02F1/1347 ,  G02B27/28 ,  G02B27/00 ,  G09G3/00

CPC classification number: G02B27/283 ,  G02B27/0093 ,  G02B27/286 ,  G09G3/001 ,  G09G2340/0407 ,  G09G2354/00

Abstract: 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.

公开(公告)号：US11656395B2

公开(公告)日：2023-05-23

申请号：US16874259

申请日：2020-05-14

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Andrew John Ouderkirk ,  Tanya Malhotra ,  Weichuan Gao ,  Ying Geng

IPC: G02B5/30 ,  G02B27/01 ,  H04N9/31 ,  G02B27/28 ,  G03H1/02

CPC classification number: G02B5/3025 ,  G02B5/3016 ,  G02B27/0101 ,  G02B27/0172 ,  G02B27/283 ,  G03H1/0248 ,  H04N9/3102 ,  G02B2027/0178 ,  G03H2001/0264

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 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 received from the second polarization selective reflector toward the first reflector as third light and the first reflector directs at least a portion of third light toward the first polarization selective reflector.

公开(公告)号：US11619774B2

公开(公告)日：2023-04-04

申请号：US17383245

申请日：2021-07-22

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Jacques Gollier ,  Fenglin Peng ,  Alexander Koshelev ,  Giuseppe Calafiore ,  Lu Lu ,  Ying Geng ,  Yun-Han Lee

IPC: G02B5/32 ,  F21V8/00 ,  G02B6/12 ,  G02B27/09 ,  G02B6/124 ,  G02B6/125 ,  G02B27/01 ,  G02B5/18

Abstract: An illuminator for a display panel includes a light source for providing a light beam and a lightguide coupled to the light source for receiving and propagating the light beam along the substrate. The lightguide includes an array of out-coupling gratings that runs parallel to the array of pixels for out-coupling portions of the light beam from the lightguide such that the out-coupled light beam portions propagate through the substrate and produce an array of optical power density peaks at the array of pixels due to Talbot effect. A period of the array of peaks is an integer multiple of a pitch of the array of pixels.

公开(公告)号：US20230098034A1

公开(公告)日：2023-03-30

申请号：US17485064

申请日：2021-09-24

Applicant: Meta Platforms Technologies, LLC

Inventor： Miaomiao Xu ,  Brian Wheelwright ,  Ying Geng

IPC: G02B6/293 ,  G02B27/01 ,  G02B27/30

Abstract: A device includes an array of light emitters configured to generate multiple light beams to form an image, the image having a field of view and a planar waveguide having an edge configured to receive multiple light beams from the array of light emitters, each light beam associated with a portion of the field of view. The device also includes a lens array comprising multiple lenses linearly extended to overlap an edge portion of the planar waveguide, the lenses optically coupling the light beams into the planar waveguide, and one or more output couplers in the planar waveguide configured to direct the light beams into an eyebox, wherein the eyebox forms an area that includes a pupil of a viewer of the image.