公开(公告)号：US20230049531A1

公开(公告)日：2023-02-16

申请号：US17938639

申请日：2022-10-06

Applicant: Meta Platforms Technologies, LLC

Inventor： Brian Wheelwright ,  Kieran Connor Kelly ,  Ying Geng

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

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：US11513362B2

公开(公告)日：2022-11-29

申请号：US16872101

申请日：2020-05-11

Applicant: Meta Platforms Technologies, LLC

Inventor： Fenglin Peng ,  Ying Geng ,  Oleg Yaroshchuk

IPC: G02B27/28 ,  G02B27/01 ,  G02B27/42 ,  G02F1/1362 ,  G02F1/1335 ,  G02B5/30 ,  G02B27/00

Abstract: An example optical assembly includes a display, a light source for illuminating the display, and a first diffraction type polarizing beam splitter (DT-PBS) configured to direct light from a first light director, wherein the first 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：US11493772B1

公开(公告)日：2022-11-08

申请号：US17382179

申请日：2021-07-21

Applicant: Meta Platforms Technologies, LLC

Inventor： Brian Wheelwright ,  Kieran Connor Kelly ,  Ying Geng

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

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：US11480807B2

公开(公告)日：2022-10-25

申请号：US16872101

申请日：2020-05-11

Applicant: Meta Platforms Technologies, LLC

Inventor： Fenglin Peng ,  Ying Geng ,  Oleg Yaroshchuk

IPC: G02B27/28 ,  G02B27/01 ,  G02B27/42 ,  G02F1/1362 ,  G02F1/1335 ,  G02B5/30 ,  G02B27/00

Abstract: An example optical assembly includes a display, a light source for illuminating the display, and a first diffraction type polarizing beam splitter (DT-PBS) configured to direct light from a first light director, wherein the first 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：US20240201495A1

公开(公告)日：2024-06-20

申请号：US18067756

申请日：2022-12-19

Applicant: Meta Platforms Technologies, LLC

Inventor： Andrew John Ouderkirk ,  Fenglin Peng ,  Ying Geng

IPC: G02B27/01 ,  G02B5/30 ,  G02B25/00

CPC classification number: G02B27/0172 ,  G02B5/3025 ,  G02B5/3083 ,  G02B25/001

Abstract: A head-mounted display comprising (1) an electronic display configured to emit light and (2) a pancake lens optically coupled to the electronic display, the pancake lens comprising a beam splitter configured to (A) transmit a spatial average fraction of the light and (B) reflect an additional spatial average fraction of the light that is less than the spatial average fraction of the light. Various other apparatuses, devices, systems, and methods are also disclosed.

公开(公告)号：US11953688B1

公开(公告)日：2024-04-09

申请号：US17943034

申请日：2022-09-12

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Jacques Gollier ,  Ying Geng ,  Dong Chen

IPC: G02B27/01 ,  B60K35/00 ,  G02B27/14 ,  G02B27/28

CPC classification number: G02B27/0172 ,  G02B27/141 ,  G02B27/149 ,  G02B27/283 ,  G02B2027/0114 ,  G02B2027/0147

Abstract: Various embodiments set forth high-resolution liquid crystal displays and components thereof. In some embodiments, light emitted by a high-resolution green color liquid crystal display is combined, via a combiner, with light emitted by at least one lower-resolution red and blue color liquid crystal display. The red and blue color display(s) may include a single display or two displays positioned on opposing sides of the combiner. The combiner may be a dichroic or polarization-based combiner. Combined light from the green color display and the red and blue color display(s) is passed through collimating optics, such as a pancake lens or a Fresnel lens, toward a viewer's eye.

公开(公告)号：US11885974B2

公开(公告)日：2024-01-30

申请号：US17076879

申请日：2020-10-22

Applicant: Meta Platforms Technologies, LLC

Inventor： Wai Sze Tiffany Lam ,  Ying Geng ,  Scott Charles McEldowney

IPC: G02B27/01 ,  G02B26/08 ,  F21V8/00

CPC classification number: G02B27/0179 ,  G02B6/0016 ,  G02B6/0055 ,  G02B26/0825 ,  G02B27/0172 ,  G02B2027/0178 ,  G02B2027/0187

Abstract: A device is provided. The device includes a waveguide configured to output a first light having a first polarization to a first side of the waveguide and a second light having the first polarization to a second side of the waveguide. The device also includes an optical element assembly disposed at the first side of the waveguide and configured to convert the first light having the first polarization into a third light having a second polarization, and output the third light toward the waveguide. The device further includes a polarizer disposed at the second side of the waveguide and configured to transmit the third light having the second polarization, and block the second light having the first polarization.

公开(公告)号：US11835728B2

公开(公告)日：2023-12-05

申请号：US16872109

申请日：2020-05-11

Applicant: Meta Platforms Technologies, LLC

Inventor： Fenglin Peng ,  Ying Geng ,  Oleg Yaroshchuk

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

CPC classification number: G02B27/283 ,  G02B27/0172 ,  G02B27/0179 ,  G02B27/425 ,  G02B2027/0178 ,  G02B2027/0187

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

公开(公告)号：US11726365B1

公开(公告)日：2023-08-15

申请号：US16926444

申请日：2020-07-10

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Ying Geng ,  Weichuan Gao

IPC: G02B27/01 ,  G02B27/00 ,  G02F1/13357 ,  G02B27/28 ,  G02F1/1335

CPC classification number: G02F1/13362 ,  G02B27/0172 ,  G02B27/0176 ,  G02B27/283 ,  G02B2027/015 ,  G02F1/133616

Abstract: An illumination assembly includes one or more light sources and an optical assembly. The one or more light sources is configured to provide illumination light. The optical assembly includes a first optical component, a second optical component, and a third optical component. The first optical component, the second optical component, and the third optical component are positioned so that the illumination light is (i) received by the first optical component, (ii) transmitted through the first optical component toward the second optical component, (iii) reflected at the second optical component toward the third optical component, (iv) reflected at the third optical component toward the second optical component, and (v) transmitted through the second optical component. A method of providing illumination using an optical assembly is also disclosed.

公开(公告)号：US11726336B2

公开(公告)日：2023-08-15

申请号：US16941337

申请日：2020-07-28

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Jacques Gollier ,  Fenglin Peng ,  Ying Geng

IPC: G02B27/01 ,  G02B27/28 ,  G02F1/01 ,  G02F1/137

CPC classification number: G02B27/0176 ,  G02B27/0172 ,  G02B27/283 ,  G02F1/0136 ,  G02F1/137 ,  G02B2027/015 ,  G02B2027/0152 ,  G02B2027/0178

Abstract: An optical device includes a substrate, a plurality of optical elements positioned on the substrate, and one or more switchable cells. A respective optical element of the plurality of optical elements is configured to redirect light having a first polarization and transmit light having a second polarization orthogonal to the first polarization. The plurality of optical elements includes a first optical element located on a first region of the substrate and a second optical element located on a second region of the substrate. A respective switchable cell of the one or more switchable cells includes optically anisotropic molecules. The one or more switchable cells include a first switchable cell located on a first cell location of the substrate between the first region and the second region of the substrate. Also disclosed are a display device including the optical device and a method performed by the optical device.