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：US11662572B1

公开(公告)日：2023-05-30

申请号：US17127093

申请日：2020-12-18

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Jasmine Soria Sears ,  Stephen James McNally

IPC: G02B26/08

CPC classification number: G02B26/0891

Abstract: A display device for projecting light to a viewer may include (1) a plurality of subpixels, in which subpixels may emit light of differing spectral distributions, (2) at least one light deviator disposed optically downstream from the plurality of subpixels, and (3) and a controller. The light emitted from each of the plurality of subpixels may be transmitted through and laterally shifted by the least one light deviator towards a viewer and the at least one light deviator may be mechanically rotatable by a force applied to an outer circumferential region of the at least one light deviator. The controller may control illumination of at least a subset of the plurality of subpixels in synchronization with rotation of the at least one light deviator. Various other apparatus, systems, and methods are also disclosed.

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.