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1. EP3443402 - WAVEGUIDES WITH EXTENDED FIELD OF VIEW

Office
European Patent Office
Application Number 17718287
Application Date 06.04.2017
Publication Number 3443402
Publication Date 20.02.2019
Publication Kind A1
IPC
G02B 27/00
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/-G02B26/119
G02B 27/01
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
CPC
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 27/0172
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
017Head mounted
0172characterised by optical features
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 2027/0174
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
017Head mounted
0172characterised by optical features
0174holographic
G02F 1/292
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
29for the control of the position or the direction of light beams, i.e. deflection
292by controlled diffraction or phased-array beam steering
G02F 1/295
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
29for the control of the position or the direction of light beams, i.e. deflection
295Analog deflection from or; in an optical waveguide structure]
Applicants MICROSOFT TECHNOLOGY LICENSING LLC
Inventors VALLIUS TUOMAS
TERVO JANI
Designated States
Priority Data 15097661 13.04.2016 US
Title
(DE) WELLENLEITER MIT ERWEITERTEM SICHTFELD
(EN) WAVEGUIDES WITH EXTENDED FIELD OF VIEW
(FR) GUIDES D'ONDE À CHAMP DE VISION ÉTENDU
Abstract
(EN) An input-coupler of an optical waveguide couples light corresponding to the image and having a corresponding FOV into the optical waveguide, and the input-coupler splits the FOV of the image coupled into the optical waveguide into first and second portions by diffracting a portion of the light corresponding to the image in a first direction toward a first intermediate-component, and diffracting a portion of the light corresponding to the image in a second direction toward a second intermediate-component. An output-coupler of the waveguide combines the light corresponding to the first and second portions of the FOV, and couples the light corresponding to the combined first and second portions of the FOV out of the optical waveguide so that the light corresponding to the image and the combined first and second portions of the FOV is output from the optical waveguide. The intermediate-components and the output-coupler also provide for pupil expansion.
(FR) L'invention concerne un coupleur d'entrée d'un guide d'onde optique qui couple la lumière correspondant à une image et ayant un champ de vision (FOV) correspondant dans le guide d'onde optique, et le coupleur d'entrée divise le FOV de l'image couplée dans le guide d'onde optique en première et seconde parties par diffraction d'une partie de la lumière correspondant à l'image dans une première direction vers un premier élément intermédiaire, et par diffraction d'une partie de la lumière correspondant à l'image dans une seconde direction vers un second élément intermédiaire. Un coupleur de sortie du guide d'onde combine la lumière correspondant aux première et seconde parties du FOV, et accouple la lumière correspondant aux première et seconde parties combinées du FOV hors du guide d'onde optique, de telle sorte que la lumière correspondant à l'image et aux première et seconde parties combinées du FOV est émise par le guide d'onde optique. Les éléments intermédiaires et le coupleur de sortie fournissent également une dilatation de pupille.
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