公开(公告)号：US11960092B2

公开(公告)日：2024-04-16

申请号：US17959838

申请日：2022-10-04

Applicant: Meta Platforms Technologies, LLC

Inventor： Daniel Guenther Greif ,  Scott Charles McEldowney ,  Stephen John Holmes ,  Chadwick Brian Martin ,  Stephen James McNally ,  John Goward

IPC: G02B27/01 ,  F21V8/00 ,  G02B6/26 ,  G02B26/08 ,  G02B26/10 ,  H01L25/075

CPC classification number: G02B27/0172 ,  G02B6/005 ,  G02B6/0085 ,  G02B6/26 ,  G02B26/0833 ,  G02B26/101 ,  G02B27/0176 ,  G02B2027/015 ,  G02B2027/0178 ,  H01L25/0753

Abstract: A light source or projector for a near-eye display includes a light source subassembly optically coupled to a waveguide concentrator. The light source subassembly may include several semiconductor chips each hosting an array of emitters such s superluminescent light-emitting diodes. The semiconductor chips may be disposed side-by-side, with their emitting sides or facets coupled to the waveguide concentrator, which provides a tight array of output light ports on a common output plane of the concentrator. The output diverging beams at the array of output light ports are coupled to a collimator, which collimates the beams and couples them to an angular scanner for scanning the collimated light beams together across the field of view of the display.

公开(公告)号：US11550153B2

公开(公告)日：2023-01-10

申请号：US16854613

申请日：2020-04-21

Applicant: Meta Platforms Technologies, LLC

Inventor： Weichuan Gao ,  Chadwick Brian Martin ,  Robin Sharma ,  Byron Taylor

IPC: G02B27/01 ,  G02B3/02 ,  G06F3/01

Abstract: An optical assembly for an eye-tracking camera includes an aperture stop, a first optical surface, and a second optical surface. The optical assembly is configured to receive non-visible light reflected or scattered by an eye and to direct the non-visible light to an image sensor along an optical path, where the non-visible light is received from an optical combiner of an eye-tracking system. The first optical surface is disposed on the optical path and is configured to correct for field-independent optical aberrations induced by the optical combiner. The second optical surface is disposed on the optical path and is configured to correct for field-dependent optical aberrations induced by the optical combiner.

公开(公告)号：US11714282B2

公开(公告)日：2023-08-01

申请号：US16506899

申请日：2019-07-09

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Wanli Chi ,  Chadwick Brian Martin ,  Scott Charles McEldowney ,  Maxwell Parsons ,  Stephen James McNally ,  Daniel Guenther Greif

IPC: G02B27/01

CPC classification number: G02B27/0172 ,  G02B27/0176 ,  G02B2027/0178

Abstract: A light source includes a first set of source elements and a second set of source elements. A respective set of source elements is disposed on a respective substrate and electrically coupled to a respective set of circuit pads formed on a respective top surface of the respective substrate by respective bond wires. At least a portion of the respective top surfaces face each other and are spaced apart from each other to accommodate at least some of the first set of source elements, at least some of the second set of source elements, and at least some of the bond wires. The display device that includes a light source configured to output image light, an optical assembly configured to collimate the image light, a scanning assembly configured to steer the image light, and an output device configured to output the image light for displaying images is also disclosed.

公开(公告)号：US20230024805A1

公开(公告)日：2023-01-26

申请号：US17959838

申请日：2022-10-04

Applicant: Meta Platforms Technologies, LLC

Inventor： Daniel Guenther Greif ,  Scott Charles McEldowney ,  Stephen John Holmes ,  Chadwick Brian Martin ,  Stephen James McNally ,  John Goward

IPC: G02B27/01 ,  F21V8/00 ,  G02B26/08 ,  G02B26/10 ,  G02B6/26

Abstract: A light source or projector for a near-eye display includes a light source subassembly optically coupled to a waveguide concentrator. The light source subassembly may include several semiconductor chips each hosting an array of emitters such s superluminescent light-emitting diodes. The semiconductor chips may be disposed side-by-side, with their emitting sides or facets coupled to the waveguide concentrator, which provides a tight array of output light ports on a common output plane of the concentrator. The output diverging beams at the array of output light ports are coupled to a collimator, which collimates the beams and couples them to an angular scanner for scanning the collimated light beams together across the field of view of the display.