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1. WO2022046354 - PUPIL STEERED DISPLAY

Publication Number WO/2022/046354
Publication Date 03.03.2022
International Application No. PCT/US2021/044028
International Filing Date 30.07.2021
IPC
G02B 27/01 2006.1
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/-G02B26/119
01Head-up displays
CPC
G02B 2027/0123
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
01Head-up displays
0101characterised by optical features
0123comprising devices increasing the field of view
G02B 27/0081
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
0081with means for altering, e.g. enlarging, the entrance or exit pupil
G02B 27/0093
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
0093with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
G02B 27/0103
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
01Head-up displays
0101characterised by optical features
0103comprising holographic elements
G02B 30/26
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
30Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
20by providing first and second parallax images to an observer's left and right eyes
26of the autostereoscopic type
G02F 1/0136
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour 
0136for the control of polarisation, e.g. state of polarisation [SOP] control, polarisation scrambling, TE-TM mode conversion or separation
Applicants
  • FACEBOOK TECHNOLOGIES, LLC [US]/[US]
Inventors
  • GAO, Weichuan
  • GENG, Ying
Agents
  • COLBY, Steven
  • KAUFMAN, Marc
Priority Data
17/002,36925.08.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PUPIL STEERED DISPLAY
(FR) AFFICHAGE DIRIGÉ PAR PUPILLE
Abstract
(EN) A display device may include a plurality of tiled spatial light modulators (SLMs) imparting image information upon respective light beams to obtain image beams. Pupil steering optics are configured to steerably direct the image beams towards a same or different exit pupil locations within an eyebox of the display device, providing exit pupil replication and/or an expanded field of view. An eye tracking system provides location information of the user's eye, enabling the pupil steering optic to direct at least some of the image beams to a desired exit pupil location.
(FR) L'invention concerne un dispositif d'affichage qui peut comprendre une pluralité de modulateurs spatiaux de lumière en mosaïque (SLM) fournissant des informations d'image sur des faisceaux lumineux respectifs pour obtenir des faisceaux d'image. Une optique de direction de pupille est configurée pour diriger de manière sélective les faisceaux d'image vers des emplacements de pupille de sortie identiques ou différents à l'intérieur d'une région oculaire du dispositif d'affichage, fournissant une réplication de pupille de sortie et/ou un champ de vision étendu. Un système de suivi de l'œil fournit des informations d'emplacement de l'œil de l'utilisateur, ce qui permet à l'optique de direction de la pupille de diriger au moins certains des faisceaux d'image vers un emplacement de pupille de sortie souhaité.
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