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1. WO2020069426 - PROJECTION SYSTEM WITH COLLIMATING SCANNING MIRROR

Publication Number WO/2020/069426
Publication Date 02.04.2020
International Application No. PCT/US2019/053633
International Filing Date 27.09.2019
IPC
G02B 27/01 2006.01
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
G02B 26/10 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
26Optical devices or arrangements using movable or deformable optical elements for controlling the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating or modulating
08for controlling the direction of light
10Scanning systems
G02B 27/18 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/-G02B26/119
18for optical projection, e.g. combination of mirror and condenser and objective
G02B 27/22 2018.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/-G02B26/119
22for producing stereoscopic or other three-dimensional effects
CPC
G02B 26/10
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
26Optical devices or arrangements using movable or deformable optical elements for controlling the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating, modulating
08for controlling the direction of light
10Scanning systems
G02B 27/01
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
G02B 27/18
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
18for optical projection, e.g. combination of mirror and condenser and objective
Applicants
  • MAGIC LEAP, INC. [US]/[US]
Inventors
  • MELVILLE, Charles David
  • SCHOWENGERDT, Brian T.
  • WATSON, Mathew D.
Agents
  • MELLOR, Brett L.
  • LARGENT, Craig C.
Priority Data
62/738,72228.09.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROJECTION SYSTEM WITH COLLIMATING SCANNING MIRROR
(FR) SYSTÈME DE PROJECTION AVEC MIROIR DE BALAYAGE COLLIMATEUR
Abstract
(EN)
A display assembly suitable for use with a virtual or augmented reality headset is described and includes the following: an input coupling grating; a scanning mirror configured to rotate about two or more different axes of rotation; an optical element; and optical fibers, each of which have a light emitting end disposed between the input coupling grating and the scanning mirror and oriented such that light emitted from the light emitting end is refracted through at least a portion of the optical element, reflected off the scanning mirror, refracted back through the optical element and into the input coupling grating. The scanning mirror can be built upon a MEMS type architecture.
(FR)
L'invention concerne un ensemble d'affichage approprié pour être utilisé avec un casque de réalité virtuelle ou augmentée, comprenant les éléments suivants : un réseau de couplage d'entrée ; un miroir de balayage conçu pour tourner autour d'au moins deux axes de rotation différents ; un élément optique ; et des fibres optiques, chacune d'elles ayant une extrémité d'émission de lumière disposée entre le réseau de couplage d'entrée et le miroir de balayage et orientée de telle sorte que la lumière émise à partir de l'extrémité d'émission de lumière est réfractée à travers au moins une portion de l'élément optique, réfléchie par le miroir de balayage, réfractée à travers l'élément optique et dans le réseau de couplage d'entrée. Le miroir de balayage peut être construit sur une architecture de type MEMS.
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