公开(公告)号：US11736679B2

公开(公告)日：2023-08-22

申请号：US17396449

申请日：2021-08-06

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 ,  G02B27/0093 ,  G06T19/006 ,  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：US11500217B2

公开(公告)日：2022-11-15

申请号：US16403140

申请日：2019-05-03

Applicant: Meta Platforms Technologies, LLC

Inventor： Afsoon Jamali ,  Brian Wheelwright ,  Yang Zhao ,  Yusufu Njoni Bamaxam Sulai ,  Douglas Robert Lanman

IPC: G02B27/09 ,  G02B7/04 ,  G02B27/28 ,  G02F1/1335 ,  G02B27/01

Abstract: An optical lens assembly and an optical system is provided. The optical lens assembly includes a first optical element including a partial reflector and a quarter-wave plate and a second optical element including a reflective polarizer. The first optical element and the second optical element form a cavity. The pancake lens assembly further includes a varifocal lens having an adjustable optical power, and the varifocal lens is disposed inside or outside the cavity.

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.

公开(公告)号：US12166955B2

公开(公告)日：2024-12-10

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 ,  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：US20240255758A1

公开(公告)日：2024-08-01

申请号：US18420128

申请日：2024-01-23

Applicant: Meta Platforms Technologies, LLC

Inventor： Andrew John Ouderkirk ,  Fenglin Peng ,  Ying Geng ,  Brian Wheelwright

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

CPC classification number: G02B27/0172 ,  G02B5/003 ,  G02B5/3058 ,  G02B5/3083 ,  G02B2027/0178

Abstract: A device may include an optical system that creates an image to a user and a light- absorbing element that absorbs a portion of the light transmitted by the optical system. The optical system may include a beamsplitting element and a reflective polarizer that reflects a first handedness of circularly polarized light and transmits a second handedness of polarized light. Various other devices, systems, and methods of manufacture are also disclosed.

公开(公告)号：US20240184124A1

公开(公告)日：2024-06-06

申请号：US18237332

申请日：2023-08-23

Applicant: Meta Platforms Technologies, LLC

Inventor： Ali Altaqui ,  Xuan Wang ,  Lu Lu ,  Michael Escuti ,  Chulwoo Oh ,  Hsien-Hui Cheng ,  Jihwan Kim ,  Yuge Huang ,  Yun-Han Lee ,  Brian Wheelwright

IPC: G02B27/01 ,  G02B5/30 ,  G02B27/09 ,  G02F1/01

CPC classification number: G02B27/0179 ,  G02B5/3083 ,  G02B27/0172 ,  G02B27/0922 ,  G02B27/0955 ,  G02F1/0136 ,  G02B2027/0185

Abstract: A multi-focal system includes a display pixel array, a pixelated polarization array, and a Pancharatnam-Berry phase (PBP) lens. The display pixel array includes a first display pixels generating first display light and a second display pixels generating second display light. The pixelated polarization array has first pixels and second pixels. The first pixels are aligned with the first display pixels to generate a first polarized light having a first polarization orientation. The second pixels are aligned with the second display pixels to generate a second polarized light having a second polarization orientation different from the first polarization orientation. The PBP lens is configured to focus the first polarized light having the first polarization orientation to a first focal length and focus the second polarized light having the second polarization orientation to a second focal length that is greater than the first focal length.

公开(公告)号：US11960088B2

公开(公告)日：2024-04-16

申请号：US17709942

申请日：2022-03-31

Applicant: Meta Platforms Technologies, LLC

Inventor： Miaomiao Xu ,  Brian Wheelwright ,  Ying Geng

IPC: G02B27/01 ,  G06T19/00

CPC classification number: G02B27/0172 ,  G06T19/006 ,  G02B2027/0187

Abstract: A head-mounted display (HMD) for improved field of view (FOV) is provided. The head-mounted display (HMD) may include a display element to provide display light. The head-mounted display (HMD) may also include a lens element to provide display light to a user of the head-mounted display (HMD). The head-mounted display (HMD) may further include an optical element comprising at least one waveguide to provide improved central or peripheral field of view (FOV) for the user of head-mounted display (HMD). In some examples, the waveguide may be part of central optics and/or peripheral optics. The waveguide may have a planar waveguide profile or a curved waveguide profile. In some examples, the waveguide may be stacked or may include a graded index (GRIN) layer.

公开(公告)号：US11852814B2

公开(公告)日：2023-12-26

申请号：US16810471

申请日：2020-03-05

Applicant: META PLATFORMS TECHNOLOGIES, LLC

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

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

CPC classification number: G02B27/0172 ,  G02B3/08 ,  G02B5/0289 ,  G02B5/1819 ,  G02B5/3025 ,  G02B27/0176 ,  G02B27/10 ,  G02B27/106 ,  G02B27/283 ,  G02F1/137 ,  G02F1/1334 ,  H04N9/3152 ,  G02B2027/0178 ,  G02B2027/0187 ,  G02F1/13345

Abstract: A display device includes an optical diffuser configured to, in response to receiving image light, output diffused image light having a same polarization as the image light. The optical diffuser is also configured to transmit ambient light. The display device also includes an optical assembly that includes a substrate, a reflector coupled to the substrate, and a beam splitter coupled to the substrate. The optical assembly is configured to transmit the diffused image light at a first optical power by reflecting the diffused image light at the reflector and at the beam splitter and to transmit the transmitted ambient light at a second optical power that is less than the first optical power without reflection at the reflector or the beam splitter. A method for transmitting light through the display device is also disclosed.

公开(公告)号：US11846779B2

公开(公告)日：2023-12-19

申请号：US17495750

申请日：2021-10-06

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Afsoon Jamali ,  Wai Sze Tiffany Lam ,  Brian Wheelwright ,  Lu Lu ,  Douglas Robert Lanman

IPC: G02B27/01 ,  G02B5/18 ,  G02B5/30 ,  G02B26/10 ,  G02B27/00 ,  G02F1/29

CPC classification number: G02B27/0172 ,  G02B5/1828 ,  G02B5/1842 ,  G02B5/3083 ,  G02B26/106 ,  G02B27/0093 ,  G02F1/29 ,  G02B2027/0123 ,  G02B2027/0178 ,  G02F1/294 ,  G02F2203/07

Abstract: An optical assembly includes a plurality of successive optical stages that are configured to transmit light at a variable overall optical power by configuring one or more stages of the successive optical stages. A respective optical stage of the successive optical stages includes an active optical element that is configurable to be in a first state at a first time and a second state at a second time that is distinct from the first time. The active optical element, in the first state, has a first respective optical power for light of a first polarization and a second respective optical power, that is different from the first respective optical power, for light of a second polarization that is orthogonal to the first polarization. The active optical element, in the second state, has a third optical power for light of the first polarization and light of the second polarization.

公开(公告)号：US11774737B2

公开(公告)日：2023-10-03

申请号：US16796385

申请日：2020-02-20

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Brian Wheelwright ,  Daniel Guenther Greif ,  Kieran Connor Kelly

IPC: G02B21/00 ,  G02F1/1335 ,  G02B7/182 ,  G01N21/88

CPC classification number: G02B21/0048 ,  G01N21/8806 ,  G02B7/1821 ,  G02F1/133536

Abstract: A beam scanner includes a substrate, a tiltable reflector hingedly supported by the substrate, and a reflective polarizer. The reflective polarizer is supported over the tiltable reflector and configured to receive and redirect a light beam towards the tiltable reflector for scanning the light beam. A projector includes the beam scanner and a light source providing a light beam. The light beam may be modulated in brightness, color, or polarization synchronously with tilting the reflector, thereby forming an image in angular domain after propagating through a pupil-replicating waveguide. At least one folding mirror may be provided for directing the light beam from the light source around the pupil-replicating waveguide, resulting in a compact overall configuration.