公开(公告)号：US20240210611A1

公开(公告)日：2024-06-27

申请号：US18371780

申请日：2023-09-22

Applicant: Meta Platforms Technologies, LLC

Inventor： Miaomiao Xu ,  Ying Geng ,  Sheng Ye ,  Andrew John Ouderkirk ,  Liliana Ruiz Diaz ,  Zhaoyu Nie

IPC: F21V8/00 ,  G02B27/01

CPC classification number: G02B6/0055 ,  G02B27/0172 ,  G02B2027/0178

Abstract: A lightguide with partially reflective slanted polarization-selective bulk mirrors is disclosed. The lightguide may be used in a near-eye display with a polarized image source. The polarization-selective bulk mirrors reflect light of the polarized image source, and fully transmit light of the orthogonal polarization, causing the mirrors to be less conspicuous to an external viewer while preserving high efficiency of delivery of the image light to the viewer.

公开(公告)号：US20240036342A1

公开(公告)日：2024-02-01

申请号：US17874002

申请日：2022-07-26

Applicant: Meta Platforms Technologies, LLC

Inventor： Andrew John Ouderkirk ,  Liliana Ruiz Diaz ,  Ying Geng ,  Hannah Dustan Noble

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

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

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. An example apparatus may include a display, a first lens assembly including a lens and a reflector, and a second lens assembly including a second lens and a second reflector. In some examples, the first lens assembly has a front surface configured to receive display light from the display when the display is energized. The first lens assembly may include a Fresnel surface (e.g., a Fresnel surface including facets and steps) that may, for example, be formed in a lens surface, or in the surface of a substrate supported by a lens surface. Other devices, methods, systems and computer-readable media are also disclosed.

公开(公告)号：US11867921B2

公开(公告)日：2024-01-09

申请号：US16858353

申请日：2020-04-24

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Ying Geng ,  Jacques Gollier

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

CPC classification number: G02B27/283 ,  G02B6/005 ,  G02B6/0058 ,  G02B6/0061 ,  G02B17/086 ,  G02B27/0172 ,  G02B27/0179 ,  G02B27/286 ,  H04N9/3152 ,  G02B2027/0118 ,  G02B2027/0138 ,  G02B2027/0178 ,  G02B2027/0187

Abstract: A display device includes a light source, a spatial light modulator, and an optical assembly. The light source is configured to provide illumination light and the spatial light modulator positioned to receive the illumination light. The optical assembly includes an optical element and a curved reflector that is distinct and separate from the optical element. The curved reflector is disposed relative to the light source so that at least a portion of the illumination light is reflected by the curved reflector toward the optical element, is reflected by the optical element toward the curved reflector, and is transmitted through the curved reflector. A method performed by the display device is also disclosed.

公开(公告)号：US11822086B2

公开(公告)日：2023-11-21

申请号：US17667504

申请日：2022-02-08

Applicant: Meta Platforms Technologies, LLC

Inventor： Sihui He ,  Wanli Chi ,  Ying Geng ,  Jacques Gollier

IPC: G02B27/00 ,  G02B27/01 ,  F21V8/00 ,  G06F3/01 ,  G06T19/00

CPC classification number: G02B27/0172 ,  G02B6/0016 ,  G02B27/0093 ,  G06F3/013 ,  G02B2027/0138 ,  G06T19/006

Abstract: A see-through illuminator for a reflective display panel provides a better image contrast when the illuminator is configured to direct a leakage light beam exiting the lightguide from a side opposing the display panel to propagate non-parallel to an image light formed by reflection of an illuminating light beam from the display panel. An objective lens may concentrate the image and leakage light beams at different locations, enabling a user's eye placed at a location of the image light beam to see the projected image without interference from the leakage light beam.

公开(公告)号：US20230273437A1

公开(公告)日：2023-08-31

申请号：US18158842

申请日：2023-01-24

Applicant: Meta Platforms Technologies, LLC

Inventor： Jian Xu ,  Jacques Gollier ,  Ying Geng

IPC: G02B27/01 ,  G02B27/09 ,  G02B27/28

CPC classification number: G02B27/0172 ,  G02B27/0983 ,  G02B27/286 ,  G02B27/44 ,  G02B2027/0174

Abstract: A virtual reality headset includes a peripheral display including light emitting pixels, an eyebox delimiting a location of a pupil in a user’s eye, and an optical assembly. The optical assembly includes an angularly selective element configured to transmit, without reflecting, an input light impinging at a selected angle, through a first curved optical element, and a second curved optical element in optical series with the first curved optical element and configured to reflect the input light back to the first curved optical element, the first curved optical element reflecting the input light in a radial direction, for transmission through the second curved optical element.

公开(公告)号：US11727891B2

公开(公告)日：2023-08-15

申请号：US17528036

申请日：2021-11-16

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Zhimin Shi ,  James Ronald Bonar ,  Fenglin Peng ,  Ying Geng

IPC: G09G3/36 ,  G09G3/34 ,  F21V8/00 ,  G02F1/1335

CPC classification number: G09G3/3473 ,  G02B6/005 ,  G09G3/3406 ,  G09G3/36 ,  G02F1/133512 ,  G09G2300/0426 ,  G09G2320/0209

Abstract: In various embodiments, an apparatus comprises a composite backplane that modulates light from a light source, where the composite backplane comprises an electronics layer disposed on a substrate, a photonics integrated circuit (IC) layer disposed on the electronics layer that causes light from the light source to propagate in a first direction, and an active light modulation (ALM) interface layer disposed on the photonics IC layer controls an ALM interface layer in order to control the light propagating in the first direction.

公开(公告)号：US11719876B2

公开(公告)日：2023-08-08

申请号：US17721282

申请日：2022-04-14

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Ying Geng ,  Adrian Travis ,  Gang Li

IPC: F21V8/00 ,  G02B5/32 ,  G02B27/01

CPC classification number: G02B6/0061 ,  G02B5/32 ,  G02B6/0046 ,  G02B6/0051 ,  G02B6/0068 ,  G02B27/0172 ,  G02B2027/0174

Abstract: A device for illuminating a spatial light modulator includes a light source and an optical element. The light source is configured to provide illumination light. The optical element has a first surface, a second surface that is distinct from and non-parallel to the first surface, and a third surface that is distinct from and non-parallel to the first surface and the second surface. The optical element is configured to receive the illumination light at the first surface, propagate the illumination light via total internal reflection, and output the illumination light from the third surface. Also disclosed is a method performed by the device.

公开(公告)号：US11714287B1

公开(公告)日：2023-08-01

申请号：US17375898

申请日：2021-07-14

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Brian Wheelwright ,  Jacques Gollier ,  Ying Geng ,  Yusufu Njoni Bamaxam Sulai ,  Weichuan Gao ,  Kieran Connor Kelly ,  Stephen Choi

IPC: G02B27/01 ,  G02B27/09

CPC classification number: G02B27/0176 ,  G02B27/0983 ,  G02B2027/0154 ,  G02B2027/0178

Abstract: A display device includes a display, an optical assembly, and a display-moving assembly connected to the display for moving the display between a first position and a second position. When in the first position, the display outputs image light in a first direction substantially parallel to an optical axis of the optical assembly. When in the second position, the display is positioned away from the optical axis of the optical assembly. The display device also includes a partial reflector and a partial reflector-moving assembly connected to the partial reflector for moving the partial reflector between a third position and a fourth position. When the partial reflector is in the third position, the display is in the first position and the display is disposed between the optical assembly and the partial reflector. When the partial reflector is in the fourth position, the display is in the second position.

公开(公告)号：US11668866B2

公开(公告)日：2023-06-06

申请号：US16874099

申请日：2020-05-14

Applicant: META PLATFORMS TECHNOLOGIES, LLC

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

IPC: G02B27/01 ,  G02B5/30 ,  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 positioned in a first orientation so that the first polarization selective reflector: receives first light in a first direction; redirects a first portion, of the first light, having a first polarization to a second direction that is non-parallel to the first direction; and receives second light in a third direction and transmit a first portion, of the second light. A second polarization selective reflector positioned in a second orientation non-parallel to the first orientation, and adjacent to the first polarization selective reflector so that the second polarization selective reflector: receives third light in a fourth direction; redirects a first portion, of the third light, having the first polarization to a fifth direction that is non-parallel to the fourth direction; and receives fourth light in a sixth direction and transmit a first portion, of the fourth light having the second polarization.

公开(公告)号：US11586024B1

公开(公告)日：2023-02-21

申请号：US16532311

申请日：2019-08-05

Applicant: META PLATFORMS TECHNOLOGIES, LLC

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

IPC: G02B17/08 ,  G02B3/08

Abstract: An optical assembly includes at least one substrate that provides a first curved surface and a second surface. The optical assembly also includes a beam splitter on the first curved surface, a reflector on the second surface, and an optical retarder disposed between the beam splitter and the reflector. The optical assembly is configured to receive first light at the first curved surface and reflect the first light at the reflector and subsequently, at the beam splitter before outputting the first light from the reflector. The first light is transmitted through the optical assembly at a first optical power. The optical assembly is also configured to transmit second light at a second optical power that is less than the first optical power. The second light is transmitted through peripheral portions of the beam splitter and reflector without reflection at the reflector.