公开(公告)号：US11454747B1

公开(公告)日：2022-09-27

申请号：US16780731

申请日：2020-02-03

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Brian Wheelwright ,  Jacques Gollier

IPC: G02B3/08 ,  G02B3/10

Abstract: A lens assembly includes a first lens and a second lens. The first lens has a first lens surface and a second lens surface opposite to the first lens surface. The second lens surface includes a first plurality of Fresnel structures. The second lens, coupled to the first lens, has a third lens surface and a fourth lens surface opposite to the third lens surface. The third lens surface includes a second plurality of Fresnel structures. The third lens surface faces the first lens and the second lens surface faces the second lens. A headset that includes a display and the lens assembly is also disclosed. A method of transmitting, with the lens assembly, light from the display toward an image plane is also disclosed.

公开(公告)号：US11448885B2

公开(公告)日：2022-09-20

申请号：US17241921

申请日：2021-04-27

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Ying Geng ,  Brian Wheelwright ,  Jacques Gollier ,  Yusufu Njoni Bamaxam Sulai ,  Babak Amirsolaimani ,  Weichuan Gao

IPC: G02B27/01 ,  G02B3/08 ,  G02B5/02 ,  H04N9/31 ,  G02B5/18 ,  G02B5/30 ,  G02B27/10 ,  G02B27/28 ,  G02F1/1334 ,  G02F1/137

Abstract: 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.

公开(公告)号：US20250071253A1

公开(公告)日：2025-02-27

申请号：US18924179

申请日：2024-10-23

Applicant: Meta Platforms Technologies, LLC

Inventor： Nathan Matsuda ,  Brian Wheelwright ,  Joel Hegland

IPC: H04N13/322 ,  G02B27/00 ,  G06T19/00 ,  H04N13/344 ,  H04N13/366

Abstract: A device for providing a reverse pass-through view of a user of a headset display to an onlooker includes an eyepiece comprising an optical surface configured to provide an image to a user on a first side of the optical surface. The device also includes a first camera configured to collect an image of a portion of a face of the user reflected from the optical surface in a first field of view, a display adjacent to the optical surface and configured to project forward an image of the face of the user, and a screen configured to receive light from the display and provide the image of the face of the user to an onlooker.

公开(公告)号：US20240406371A1

公开(公告)日：2024-12-05

申请号：US18800312

申请日：2024-08-12

Applicant: Meta Platforms Technologies, LLC

Inventor： Nathan Matsuda ,  Brian Wheelwright ,  Joel Hegland ,  Stephen Anthony Lombardi ,  Jason Saragih ,  Tomas Simon Kreuz ,  Shunsuke Saito ,  Michael Zollhoefer ,  Amit Raj ,  James Henry Hays

IPC: H04N13/344 ,  G02B30/10 ,  G06T7/80 ,  G06T15/00 ,  H04N5/33 ,  H04N13/117 ,  H04N13/239 ,  H04N13/383

Abstract: A device for providing a reverse pass-through view of a user of a headset display to an onlooker includes an eyepiece comprising an optical surface configured to provide an image to a user on a first side of the optical surface. The device also includes a first camera configured to collect an image of a portion of a face of the user reflected from the optical surface in a first field of view, a display adjacent to the optical surface and configured to project forward an image of the face of the user, and a screen configured to receive light from the display and provide the image of the face of the user to an onlooker.

公开(公告)号：US20240337832A1

公开(公告)日：2024-10-10

申请号：US18130550

申请日：2023-04-04

Applicant: Meta Platforms Technologies, LLC

Inventor： Daniel Guenther Greif ,  Brian Wheelwright ,  Zachary Kehs

IPC: G02B27/00 ,  G02B26/10

CPC classification number: G02B27/0031 ,  G02B26/10

Abstract: Static non-uniformity effects in a coherent biresonant scanning projector are mitigated through correction factors for pulse events during one frame time. According to an analytical approach, a set of input parameters such as scan angle, micro-electromechanical system (MEMS) obliquity, ridge spacing, etc. are used to optimize color-wise luminance uniformity. According to an optimization approach, pulse correction factors are determined using a custom-defined cost function that attempts to optimize for both luminance and color uniformity.

公开(公告)号：US20240210274A1

公开(公告)日：2024-06-27

申请号：US18528587

申请日：2023-12-04

Applicant: Meta Platforms Technologies, LLC

Inventor： Michiel Koen Callens ,  Babak Amirsolaimani ,  Jacques Gollier ,  Sihui He ,  Yitian Ding ,  Brian Wheelwright ,  Weichuan Gao ,  Tamer Elazhary ,  Yu Shi

IPC: G01M11/02 ,  G02B27/10

CPC classification number: G01M11/0242 ,  G02B27/106

Abstract: Optical binocular disparity detection devices may include an optical combiner and a single image sensor. The optical combiner may include a left input for receiving a left image and a right input for receiving a right image. An output of the optical combiner may be configured to direct the left image and the right image out of the optical combiner. The single image sensor may be configured to receive and sense the left image and the right image from the output and to generate data indicative of a disparity between the left image and the right image. Various other related systems and methods are also disclosed.

公开(公告)号：US11846797B2

公开(公告)日：2023-12-19

申请号：US16862396

申请日：2020-04-29

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Jacques Gollier ,  Brian Wheelwright ,  Ying Geng ,  Babak Amirsolaimani ,  Fenglin Peng

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

公开(公告)号：US20230362348A1

公开(公告)日：2023-11-09

申请号：US18351648

申请日：2023-07-13

Applicant: Meta Platforms Technologies, LLC

Inventor： Nathan Matsuda ,  Brian Wheelwright ,  Joel Hegland

IPC: H04N13/322 ,  H04N13/344 ,  G06T19/00 ,  G02B27/00 ,  H04N13/366

CPC classification number: H04N13/322 ,  H04N13/344 ,  G06T19/006 ,  G02B27/0093 ,  H04N13/366

Abstract: A device for providing a reverse pass-through view of a user of a headset display to an onlooker includes an eyepiece comprising an optical surface configured to provide an image to a user on a first side of the optical surface. The device also includes a first camera configured to collect an image of a portion of a face of the user reflected from the optical surface in a first field of view, a display adjacent to the optical surface and configured to project forward an image of the face of the user, and a screen configured to receive light from the display and provide the image of the face of the user to an onlooker.

公开(公告)号：US11768330B2

公开(公告)日：2023-09-26

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

CPC classification number: G02B6/29301 ,  G02B27/0101 ,  G02B27/0172 ,  G02B27/30 ,  G02B2027/0123

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.

公开(公告)号：US20230271823A1

公开(公告)日：2023-08-31

申请号：US18049759

申请日：2022-10-26

Applicant: Meta Platforms Technologies, LLC

Inventor： Katherine Marie Smyth ,  Kenneth Alexander Diest ,  Brian Wheelwright ,  Daniel Guenther Greif

IPC: B81B3/00 ,  G02B26/08

CPC classification number: B81B3/0021 ,  G02B26/0858 ,  B81B2201/042 ,  B81B2203/0118 ,  B81B2203/04 ,  B81B2203/06

Abstract: A direct drive scanning micromirror includes a mirror body defining a mirror surface, and a plurality of curved cantilevers that each extend directly from the mirror body. The shape of the cantilevers and the geometry of the interface between the cantilevers and the mirror body are configured to decrease peak stresses within the micromirror during operation, which may beneficially impact performance and lifetime.