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1. WO2020112520 - OPTICAL SYSTEMS WITH MULTI-LAYER HOLOGRAPHIC COMBINERS

Publication Number WO/2020/112520
Publication Date 04.06.2020
International Application No. PCT/US2019/062735
International Filing Date 22.11.2019
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 5/18 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
18Diffracting gratings
G02B 5/32 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
32Holograms used as optical elements
F21V 8/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
8Use of light guides, e.g. fibre optic devices, in lighting devices or systems
G03B 21/60 2014.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
54Accessories
56Projection screens
60characterised by the nature of the surface
CPC
G02B 2027/0105
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
0105Holograms with particular structures
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 2027/013
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 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
G02B 2027/0178
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
0178Eyeglass type, eyeglass details G02C
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
Applicants
  • APPLE INC. [US]/[US]
Inventors
  • HOLLANDS, Matthew D.
  • SIMMONDS, Michael D.
  • TOPLISS, Richard J.
  • GREGORY, Thomas M.
Agents
  • TREYZ, George Victor
Priority Data
16/688,83119.11.2019US
62/772,98529.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) OPTICAL SYSTEMS WITH MULTI-LAYER HOLOGRAPHIC COMBINERS
(FR) SYSTÈMES OPTIQUES À COMBINEURS HOLOGRAPHIQUES MULTICOUCHES
Abstract
(EN)
An electronic device may include a display module that generates image light and an optical system that redirects the light towards an eye box. The optical system may have first hologram structures that replicate the light over multiple output angles onto second hologram structures. The second hologram structures may focus the replicated light onto the eye box. If desired, the device may include an image sensor. The first and second hologram structures may include transmission and/or reflection holograms. The optical system may redirect a first portion of the light to the eye box and a second portion of the light to the sensor. The sensor may generate image data based on the second portion of the light. Control circuitry may compensate for distortions in the first portion of the light by performing feedback adjustments to the display module based on distortions in the image data.
(FR)
Dispositif électronique pouvant comporter un module d'affichage qui génère une lumière d'image et un système optique qui redirige la lumière vers un oculaire. Le système optique peut avoir des premières structures d'hologramme qui reproduisent la lumière sur de multiples angles de sortie sur des secondes structures d'hologramme. Les secondes structures d'hologramme peuvent focaliser la lumière répliquée sur l'oculaire. Si on le souhaite, le dispositif peut comprendre un capteur d'image. Les première et seconde structures d'hologramme peuvent comprendre des hologrammes de transmission et/ou de réflexion. Le système optique peut rediriger une première partie de la lumière vers l'oculaire et une seconde partie de la lumière vers le capteur. Le capteur peut générer des données d'image sur la base de la seconde partie de la lumière. Des circuits de commande peuvent compenser des distorsions dans la première partie de la lumière par réalisation d'ajustements de rétroaction sur le module d'affichage sur la base de distorsions dans les données d'image.
Also published as
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