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1. US20220137408 - WAVEGUIDE ASSEMBLY WITH VIRTUAL IMAGE FOCUS

Office
États-Unis d'Amérique
Numéro de la demande 17089783
Date de la demande 05.11.2020
Numéro de publication 20220137408
Date de publication 05.05.2022
Type de publication A1
CIB
G02B 27/01
GPHYSIQUE
02OPTIQUE
BÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES
27Systèmes ou appareils optiques non prévus dans aucun des groupes G02B1/-G02B26/117
01Dispositifs d'affichage "tête haute"
CPC
G02B 2027/013
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
013comprising a combiner of particular shape, e.g. curvature
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 2027/0174
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
Déposants Microsoft Technology Licensing, LLC
Inventeurs David BOHN
Tuomas VALLIUS
Jani Kari Tapio TERVO
Titre
(EN) WAVEGUIDE ASSEMBLY WITH VIRTUAL IMAGE FOCUS
Abrégé
(EN)

An optical combiner, configured for use in a mixed-reality display system that combines holographic and real-world images, includes an assembly of see-through waveguides that are arranged in a stack to provide full color holographic images from constituent RGB (red, green, and blue) color components received from a holographic image source. Each waveguide—one per RGB color component—includes an in-coupling DOE (diffractive optical element), an intermediate DOE, and an out-coupling DOE that are disposed on internal surfaces of the stacked waveguides in the optical combiner. Each of the out-coupling DOEs incorporates a diffractive lens functionality to render the out-coupled holographic images at a set depth on the mixed-reality display. In an illustrative non-limiting example, the out-coupling DOE may provide a half diopter of negative lens power to set the optical focus of the holographic images at 1.33 m.


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