公开(公告)号：US11145242B2

公开(公告)日：2021-10-12

申请号：US16788601

申请日：2020-02-12

Applicant: Facebook Technologies, LLC

Inventor： Yuming Liu ,  Xiaobei Li ,  Lawrence Chang-Yung Wang ,  Sam Sarmast ,  Phillip Freeman King ,  Benjamin Nicholas Jones

IPC: G09G3/32 ,  G02B27/01 ,  H02M3/158 ,  H02K47/02

Abstract: An apparatus for efficiently driving visual displays via light-emitting devices may include (1) at least one light-emitting device, (2) a buck driver circuit electrically coupled to the light-emitting device, wherein the buck driver circuit includes an inductor, and (3) a boost circuit electrically coupled between the buck driver circuit and a power source, wherein the boost circuit includes an additional inductor. Various other apparatuses, systems, and methods are also disclosed.

公开(公告)号：US11333895B1

公开(公告)日：2022-05-17

申请号：US16406377

申请日：2019-05-08

Applicant: Facebook Technologies, LLC

Inventor： Jonatan Ginzburg ,  Mark Timothy Sullivan ,  Benjamin Nicholas Jones

IPC: G02B27/09 ,  G02B27/01

Abstract: The disclosed system may include (1) a diffractive optical element (DOE) stack including one or more DOEs, where the DOE stack generates, in response to incoming light received at a first side of the DOE stack, structured light from a second side of the DOE stack opposite the first side, (2) a primary light source that emits the incoming light toward the first side of the DOE stack, and (3) at least one photodetector that detects light emitted from an edge of each of at least one of the DOEs of the DOE stack, where the edge is located between the first side and the second side of the DOE stack. Various other methods and systems are also disclosed.

公开(公告)号：US20210125542A1

公开(公告)日：2021-04-29

申请号：US16788601

申请日：2020-02-12

Applicant: Facebook Technologies, LLC

Inventor： Yuming Liu ,  Xiaobei Li ,  Lawrence Chang-Yung Wang ,  Sam Sarmast ,  Phillip Freeman King ,  Benjamin Nicholas Jones

IPC: G09G3/32 ,  G02B27/01

Abstract: An apparatus for efficiently driving visual displays via light-emitting devices may include (1) at least one light-emitting device, (2) a buck driver circuit electrically coupled to the light-emitting device, wherein the buck driver circuit includes an inductor, and (3) a boost circuit electrically coupled between the buck driver circuit and a power source, wherein the boost circuit includes an additional inductor. Various other apparatuses, systems, and methods are also disclosed.

公开(公告)号：US20230085063A1

公开(公告)日：2023-03-16

申请号：US17572395

申请日：2022-01-10

Applicant: Facebook Technologies, LLC

Inventor： Jonatan Ginzburg ,  Benjamin Nicholas Jones ,  Arun Kumar Nallani Chakravartula ,  Jun Li ,  Lawrence Chang-Yung Wang

IPC: H01S5/42 ,  G01B11/22

Abstract: A vertical cavity surface emitting laser (VCSEL) chip includes a structured light (SL) VCSEL array, and a fill VCSEL array. The SL VCSEL array includes a plurality of first VCSELs on a substrate. The fill VCSEL array includes a plurality of second VCSELs on the substrate. The fill VCSEL array is positioned orthogonal to the SL VCSEL array on the substrate. Light emitted from the SL VCSEL array may be used to form a bar pattern, and light from the SL VCSEL array and the fill VCSEL array together may be used to form flood illumination.

公开(公告)号：US20210383745A1

公开(公告)日：2021-12-09

申请号：US17408190

申请日：2021-08-20

Applicant: Facebook Technologies, LLC

Inventor： Yuming Liu ,  Xiaobei Li ,  Lawrence Chang-Yung Wang ,  Sam Sarmast ,  Phillip Freeman King ,  Benjamin Nicholas Jones

IPC: G09G3/32 ,  G02B27/01 ,  H02M3/158

Abstract: An apparatus for efficiently driving visual displays via light-emitting devices may include (1) at least one light-emitting device, (2) a buck driver circuit electrically coupled to the light-emitting device, wherein the buck driver circuit includes an inductor, and (3) a boost circuit electrically coupled between the buck driver circuit and a power source, wherein the boost circuit includes an additional inductor. Various other apparatuses, systems, and methods are also disclosed.