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：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：US20230144296A1

公开(公告)日：2023-05-11

申请号：US17521446

申请日：2021-11-08

Applicant: Meta Platforms Technologies, LLC

Inventor： Xingzhou TU ,  Brian WHEELWRIGHT ,  Alexander SOHN ,  Weichuan GAO ,  Ying GENG ,  Jacques GOLLIER

IPC: G02B3/08 ,  G02B27/30

CPC classification number: G02B3/08 ,  G02B27/30 ,  G02B2003/0093

Abstract: A system includes a light outputting device configured to output a divergent light. The system also includes a lens configured to convert the divergent light incident thereon from a first side of the lens to a collimated light substantially covering a light receiving region located at a second side of the lens, the lens including a plurality of Fresnel structures formed on at least one of a first lens surface or a second lens surface of the lens. Each Fresnel structure includes a slope facet and a draft facet. At least one of the draft facets is a first type of draft facet configured to not interact with a ray of the divergent light that is non-parallel with the at least one of the draft facets.