公开(公告)号：US11592675B2

公开(公告)日：2023-02-28

申请号：US17569477

申请日：2022-01-05

Applicant: Meta Platforms Technologies, LLC

Inventor： Ying Geng ,  Jacques Gollier ,  Alexander Sohn ,  Matthew E. Colburn

IPC: G02B27/01 ,  H01L27/32 ,  H04N13/332 ,  H04N13/344 ,  H04N13/324

Abstract: An electronic display assembly includes a display element and a corrective element coupled to the display element. The display element has a first plurality of sub-pixels of a first type and a second plurality of sub-pixels of a second type. Two adjacent sub-pixels of the first plurality of sub-pixel are separated by a sub-pixel distance. The corrective element has a plurality of features configured to diffuse light emitted by the first plurality of sub-pixels such that an apparent distance between the two adjacent sub-pixels of the first type, viewed at a viewing distance away from the electronic display assembly, is less than the sub-pixel distance.

公开(公告)号：US11579425B1

公开(公告)日：2023-02-14

申请号：US16848652

申请日：2020-04-14

Applicant: META PLATFORMS TECHNOLOGIES, LLC

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

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 transmit the first light through the optical assembly at a first optical power. The optical assembly is also configured to transmit second light through peripheral portions of the optical assembly at a second optical power that is less than the first optical power. The first light includes light having a first polarization and wavelengths within a predetermined wavelength range. The second light includes light having wavelengths within the predetermined wavelength range and a second polarization orthogonal to the first polarization, as well as light having wavelengths outside the predetermined wavelength range.

公开(公告)号：US11567326B1

公开(公告)日：2023-01-31

申请号：US17085654

申请日：2020-10-30

Applicant: Meta Platforms Technologies, LLC

Inventor： Afsoon Jamali ,  Yang Zhao ,  Brian Wheelwright ,  Douglas Robert Lanman ,  Marina Zannoli ,  Ian Erkelens ,  Yusufu Njoni Bamaxam Sulai ,  Lu Lu ,  Jacques Gollier

IPC: G02B27/01 ,  G02C7/08 ,  G02F1/1343 ,  G02B27/00

Abstract: A device includes a light source configured to emit an image light. The device also includes an optical assembly configured to direct the image light to an eye-box of the device. The optical assembly includes a first optical element portion configured to focus a first portion of the image light propagating through the first optical element portion. The optical assembly also includes a second optical element portion configured to focus a second portion of the image light propagating through the second optical element portion. The second optical element portion includes a liquid crystal (“LC”) lens having an adjustable optical power.

公开(公告)号：US11467332B2

公开(公告)日：2022-10-11

申请号：US16734167

申请日：2020-01-03

Applicant: META PLATFORMS TECHNOLOGIES, LLC

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

IPC: G02B6/00 ,  F21V8/00 ,  G02F1/01 ,  G02B27/01 ,  G02B27/28 ,  G02F1/139

Abstract: A display device includes a waveguide, an array of tunable retarders in contact with the waveguide, and a polarization selective optical element. A respective tunable retarder of the array of tunable retarders receives 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 that is distinct from the second 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 second 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：US11422375B2

公开(公告)日：2022-08-23

申请号：US16810431

申请日：2020-03-05

Applicant: META PLATFORMS TECHNOLOGIES, LLC

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

IPC: G02B27/01 ,  G02B27/10 ,  G02B27/28 ,  G02B3/08 ,  G02F1/1333 ,  G02B5/18 ,  G02B5/02 ,  G02F1/137 ,  H04N9/31 ,  G02B5/30 ,  G02F1/1334

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：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：US11740471B2

公开(公告)日：2023-08-29

申请号：US17401160

申请日：2021-08-12

Applicant: META PLATFORMS TECHNOLOGIES, LLC

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

IPC: G02F1/1335 ,  G02B27/01 ,  F21V8/00 ,  G02F1/13357

CPC classification number: G02B27/0172 ,  G02B6/005 ,  G02B6/0078 ,  G02B27/0179 ,  G02F1/133536 ,  G02F1/133553 ,  G02B2027/0178 ,  G02B2027/0187 ,  G02F1/133524 ,  G02F1/133526 ,  G02F1/133606 ,  G02F1/133621

Abstract: A display device with a transparent illuminator and an liquid crystal (LC) display panel is disclosed. The transparent illuminator includes a light source and a transparent lightguide, which may be based on a slab of transparent material with zigzag light propagation of the illuminating light in the slab and/or a transparent photonic integrated circuit with singlemode ridge waveguides for spreading the illuminating light in a plane parallel to the plane of LC display panel. The lightguide includes a plurality of grating out-couplers whose position is coordinated with positions of LC pixels for higher throughput. A reflective offset-to-angle optical element may be provided to form an image in angular domain through the LC panel and through the transparent illuminator, resulting in an overall compact and efficient display configuration.

公开(公告)号：US11579457B2

公开(公告)日：2023-02-14

申请号：US16858341

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

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 is positioned to receive the illumination light. The optical assembly includes a first reflective surface with an aperture and a second reflective surface that is opposite to the first reflective surface. The optical assembly is positioned relative to the light source so that at least a first portion of the illumination light received by the optical assembly is reflected by the second reflective surface toward the first reflective surface, is reflected by the first reflective surface toward the second reflective surface, and is transmitted through the second reflective surface. A method performed by the display device is also disclosed.

公开(公告)号：US11416071B1

公开(公告)日：2022-08-16

申请号：US17220373

申请日：2021-04-01

Applicant: Meta Platforms Technologies, LLC

Inventor： Andrew John Ouderkirk ,  Jacques Gollier ,  Robin Sharma ,  Yusufu Njoni Bamaxam Sulai ,  Brian Wheelwright ,  Ying Geng ,  Alexander Sohn ,  Abbas Mehdi Kazmi

IPC: G09G5/00 ,  G06F3/01 ,  H04N5/33 ,  H04N5/225 ,  G06T7/20

Abstract: A backlight device includes a first surface and a second surface that is opposite to the first surface. The backlight device is configured to emit light in a first optical band through the second surface toward a display panel of a head-mounted display (HMD). The display panel is configured to convert the light from the backlight device to image light. The backlight device is transparent to light in a second optical band that is different than the first optical band. An eye tracking system illuminates an eyebox with light in the second optical band. A camera assembly positioned adjacent to the first surface of the backlight device. The camera assembly is configured to capture images of the eye in the second optical band through the backlight device, the display panel. The eye tracking system determines eye tracking information based at least in part on the captured images.