公开(公告)号：US20230099173A1

公开(公告)日：2023-03-30

申请号：US17894054

申请日：2022-08-23

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Ying GENG ,  Brian WHEELWRIGHT ,  Jacques GOLLIER ,  Babak AMIRSOLAIMANI ,  Weichuan GAO ,  Yusufu Njoni Bamaxam SULAI

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

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：US20230080580A1

公开(公告)日：2023-03-16

申请号：US17866463

申请日：2022-07-15

Applicant: Meta Platforms Technologies, LLC

Inventor： Xiayu FENG ,  Yun-Han LEE ,  Babak AMIRSOLAIMANI ,  Mengfei WANG ,  Junren WANG ,  Lu LU

IPC: G02B5/30 ,  G02B5/18 ,  G02B5/20

Abstract: A device includes a diffraction element and an optical filter stacked with the diffraction element. The optical filter is configured to forwardly deflect a light from a real-world environment incident onto the optical filter, at an incidence angle greater than or equal to a predetermined angle, toward the diffraction element. The diffraction element is configured to substantially transmit the light forwardly deflected by the optical filter.

公开(公告)号：US20220326533A1

公开(公告)日：2022-10-13

申请号：US17852233

申请日：2022-06-28

Applicant: Meta Platforms Technologies, LLC

Inventor： Ying GENG ,  Brian WHEELWRIGHT ,  Jacques GOLLIER ,  Yusufu Njoni Bamaxam SULAI ,  Babak AMIRSOLAIMANI ,  Weichuan GAO ,  Gang LI ,  Mengfei WANG ,  Adrian TRAVIS

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

Abstract: A display device includes a projector and a display that has a first surface and a second surface. The projector is configured to project image light toward the display. The display is configured to output diffused image light from the first surface and to transmit ambient light from the second surface to the first surface. The display device also includes an optical assembly that has a substrate with substantially uniform thickness. The optical assembly is configured to receive the diffused image light and transmit a portion of the diffused image light output from the first surface of the display at a first optical power. The optical assembly is also configured to receive the ambient light and transmit a portion of the ambient light through the optical assembly at a second optical power that is less than the first optical power.

公开(公告)号：US20220413205A1

公开(公告)日：2022-12-29

申请号：US17901851

申请日：2022-09-02

Applicant: Meta Platforms Technologies, LLC

Inventor： Yun-Han LEE ,  Lu LU ,  Mengfei WANG ,  Fenglin PENG ,  Junren WANG ,  Oleg YAROSHCHUK ,  Yingfei JIANG ,  Babak AMIRSOLAIMANI ,  Scott Charles MCELDOWNEY

IPC: F21V8/00 ,  G02B27/01 ,  G03H1/02

Abstract: A device includes a display configured to generate an image light. The device also includes a waveguide optically coupled with the display and configured to guide the image light to an exit pupil of the device. The waveguide includes a grating including a birefringent material, and a birefringence of the grating is configured to increase along a pupil-expanding direction of the device.