公开(公告)号：US11604315B1

公开(公告)日：2023-03-14

申请号：US16936280

申请日：2020-07-22

Applicant: Meta Platforms Technologies, LLC

Inventor： Brian Wheelwright ,  Ying Geng

IPC: G02B6/293 ,  G02B6/42

Abstract: A display assembly presented herein includes an inset display, a peripheral display, and a multiplexing optical assembly (MOA). The inset display has a first resolution and emits image light of a first polarization. The peripheral display has a second resolution and emits image light of a second polarization. The MOA receives the image light of the first polarization and the image light of the second polarization. The MOA then transforms the image light of the first polarization into a first portion of image light of a third polarization, and transforms the image light of the second polarization into a second portion of image light of the third polarization. The MOA directs the first portion of image light and the second portion of image light toward an eye-box. The display assembly can be implemented as a component of a head-mounted display of an artificial reality system.

公开(公告)号：US20230060915A1

公开(公告)日：2023-03-02

申请号：US18049173

申请日：2022-10-24

Applicant: Meta Platforms Technologies, LLC

Inventor： Fenglin Peng ,  Ying Geng ,  Oleg Yaroshchuk

IPC: G02B27/28 ,  G02B27/01 ,  G02B27/42 ,  G02F1/1362

Abstract: An example optical assembly includes a display, a light source for illuminating the display, and a diffraction type polarizing beam splitter (DT-PBS) configured to direct light from a light director, wherein the DT-PBS is polarization sensitive and configured to direct, based on polarization, a first portion of light towards the display.

公开(公告)号：US11592608B2

公开(公告)日：2023-02-28

申请号：US16734163

申请日：2020-01-03

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Fenglin Peng ,  Ying Geng ,  Jacques Gollier ,  Garam Young

IPC: F21V8/00 ,  G02B27/28 ,  G02F1/139 ,  G02B27/01 ,  G02F1/01

Abstract: An optical device for illuminating one or more portions of a spatial light modulator includes a waveguide, an array of tunable retarders, and a polarization selective optical element. A respective tunable retarder is optically coupled to receive light from the waveguide. The respective tunable retarder has a first state, which causes the respective tunable retarder to direct light having a first polarization in a first direction, and a second state, which causes the respective tunable retarder to direct light having a second polarization distinct from the first polarization in the first direction. The polarization selective optical element is located adjacent to the array of tunable retarders so that the light having the first polarization propagates from the polarization selective optical element in a second direction and the light having the second polarization propagates from the polarization selective optical element in a third direction distinct from the second direction.

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

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

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.

公开(公告)号：US20230014577A1

公开(公告)日：2023-01-19

申请号：US17374888

申请日：2021-07-13

Applicant: Meta Platforms Technologies, LLC

Inventor： Jacques Gollier ,  Fenglin Peng ,  Ying Geng ,  Anqi Ji

IPC: G02B27/01 ,  G02B27/00 ,  G02B26/08 ,  G02B27/28

Abstract: A directional illuminator includes a light source, a pupil-replicating lightguide, and a tiltable reflector coupling the light source to the pupil-replicating lightguide. The exit beam angle of the light outputted by the pupil-replicating lightguide follows the in-coupling angle, and accordingly depends on the tilting angle of the tiltable reflector. The directional illuminator with steered light beam may be used to illuminate a display panel. Steering the illuminating light by the tiltable reflector enables one to steer the exit pupil of the display device to match the user's eye location(s).

公开(公告)号：US11556013B2

公开(公告)日：2023-01-17

申请号：US16858312

申请日：2020-04-24

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Ying Geng

IPC: G02B27/28 ,  F21V8/00 ,  G02B27/01 ,  H04N9/31 ,  G02B17/08

Abstract: A display device includes a light source, a spatial light modulator, and an optical element. The optical element includes a reflective surface. The optical assembly is positioned relative to the light source so that at least a portion of the illumination light received by the optical element is reflected at the reflective surface back toward the light source. The spatial light modulator is positioned to receive at least a portion of the illumination light reflected by the reflective surface. A method performed by the display device is also disclosed.

公开(公告)号：US11539929B1

公开(公告)日：2022-12-27

申请号：US16920208

申请日：2020-07-02

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Weichuan Gao ,  Ying Geng

IPC: H04N9/31 ,  G02B27/01 ,  G02B27/42

Abstract: An optical device includes a first waveguide having a first side and an opposing second side, a spatial light modulator configured to project image light, one or more lenses disposed between the spatial light modulator and the first waveguide, and a first in-coupler coupler coupled with the first waveguide. The spatial light modulator is positioned on the first side of the first waveguide. The first in-coupler is positioned to receive the image light projected by the spatial light modulator and transmitted through the one or more lenses and to redirect at least a first portion of the image light so that the first portion of the image light enters the first waveguide and undergoes total internal reflection inside the first waveguide.

公开(公告)号：US11933975B2

公开(公告)日：2024-03-19

申请号：US17677406

申请日：2022-02-22

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Babak Amirsolaimani ,  Pasi Saarikko ,  Ying Geng ,  Yusufu Njoni Bamaxam Sulai ,  Scott Charles McEldowney

IPC: G02B27/00 ,  F21V8/00 ,  G02B6/10 ,  G02B6/27 ,  G02B6/35 ,  G02B6/42 ,  G02B23/12 ,  G02B27/01 ,  G06F3/01 ,  G06T7/70

CPC classification number: G02B27/0093 ,  G02B6/0056 ,  G02B6/105 ,  G02B6/27 ,  G02B6/356 ,  G02B6/42 ,  G02B6/4206 ,  G02B23/125 ,  G02B27/0172 ,  G06F3/013 ,  G06T7/70 ,  G02B2027/011 ,  G02B2027/0138 ,  G02B2027/0174 ,  G02B2027/0178

Abstract: An optical system includes an optical waveguide, and a first optical element configured to direct a first ray, having a first circular polarization and impinging on the first optical element at a first incidence angle, in a first direction so that the first ray propagates through the optical waveguide via total internal reflection toward a second optical element. The first optical element is configured to also direct a second ray, having a second circular polarization that is distinct from the first circular polarization and impinging on the first optical element at the first incidence angle, in a second direction that is distinct from the first direction so that the second ray propagates away from the second optical element. The second optical element is configured to direct the first ray propagating through the optical waveguide toward a detector.

公开(公告)号：US11914182B2

公开(公告)日：2024-02-27

申请号：US16874265

申请日：2020-05-14

Applicant: META PLATFORMS TECHNOLOGIES, LLC

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

IPC: G02B27/01 ,  H04N9/31 ,  G02B5/30 ,  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; 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.

公开(公告)号：US20240045168A1

公开(公告)日：2024-02-08

申请号：US18312204

申请日：2023-05-04

Applicant: Meta Platforms Technologies, LLC

Inventor： Andrew John Ouderkirk ,  Kurt Jenkins ,  Sheng Ye ,  Liliana Ruiz Diaz ,  John Cooke ,  Ying Geng ,  Barry David Silverstein

IPC: G02B7/02 ,  G02B3/12 ,  G02B27/01 ,  G02B17/08 ,  B29D11/00

CPC classification number: G02B7/028 ,  G02B3/12 ,  G02B27/0172 ,  G02B17/086 ,  B29D11/00432 ,  G02B2027/0178 ,  G02B5/3041

Abstract: The disclosed apparatus may include a first rigid lens; a second rigid lens, a seal that couples the first rigid lens and the second rigid lens together, where the first rigid lens, the second rigid lens, and the seal define a cavity; and a fluid within the cavity, where the seal is adapted to admit expansions of the fluid within the cavity. Various other apparatuses and methods also disclosed.