Holographic display
AssigneeMicrosoft Technology Licensing, LLC
InventorAdrian Travis
Life of this patent
Estimating the term…
Abstract
A display device includes an optical sensor configured to image a user eye, an image source configured to provide image light, a holographic film including a plurality of holograms, and a controller. Each hologram is recorded with a same reference beam but recorded differently so as to differently diffract image light received from the light source. The controller is configured to determine, via the optical sensor, a position of the user eye, and adjust, based on the determined position of the user eye, a state of the holographic film such that a particular hologram of the plurality of holograms diffracts image light to the position of the user eye.
Claims15
A display device comprising:
- an optical sensor configured to image a user eye;
- an image source configured to provide image light;
- a holographic film including a plurality of holograms, each hologram recorded with a same reference beam but recorded differently so as to differently diffract image light received from the light source, and each hologram being recorded with a different amount of shear applied to the holographic film;
- and
- a controller configured to 1) determine, via the optical sensor, a position of the user eye, and 2) adjust, based on the determined position of the user eye, a state of the holographic film such that a particular hologram of the plurality of holograms diffracts image light to intersect the position of the user eye.
A near-eye display device comprising:
- an optical sensor configured to image a user eye;
- an image source configured to provide image light;
- a waveguide configured to propagate image light from the image source to a field of view of a user eye;
- a holographic film adjacent the waveguide, the holographic film including a plurality of holograms, each hologram recorded with a same reference beam, but recorded differently so as to differently diffract image light received from the waveguide, and each hologram being recorded with a different amount of shear applied to the holographic film;
- and
- a controller configured to 1) determine, via the optical sensor, a position of the user eye, and 2) adjust, based on the determined position of the user eye, a state of the holographic film such that a particular hologram of the plurality of holograms diffracts image light to intersect the position of the user eye.
On a display device including a holographic film including a plurality of holograms, each hologram recorded with a same reference beam, but recorded differently to differently diffract image light, and each hologram being recorded with a different amount of shear applied to the holographic film, a method for projecting an image, the method comprising:
- determining, via an optical sensor, a position of a user eye;
- providing, via an image source, image light to the holographic film;
- and
- adjusting, based on the determined position of the user eye, an amount of shear applied to the holographic film such that a particular hologram of a plurality of holograms diffracts image light to intersect the position of the user eye.
Dependencies are inferred from the claim text.