Image and wave field projection through diffusive media
AssigneeVuzix Corporation
InventorStephen P. McGrew
Life of this patent
Estimating the term…
Abstract
Methods and systems for projecting wave fields use a diffusing medium, a wavefront shaper, an illumination source, and a control system. A system for projecting an object wave field into a projection volume includes a wave scatterer, a wave field projector configured to project a wave field onto the wave scatterer, and a controller coupled to the wave field projector. The controller is configured to cause the wave field projector to project a wave field that, upon interacting with the wave scatterer, is redirected to form an object wave field that forms a predetermined pattern in the projection volume.
Claims18
A system for projecting an object wave field into a projection volume, comprising:
- a wave scatterer that at least quasi-randomly redirects local portions of incident wave fronts;
- a wave field projector configured to project a range of pre-distorted wave fields onto the wave scatterer;
- and,
- a controller coupled to the wave field projector, wherein the controller is configured to cause the wave field projector to project the pre-distorted wave fields so that, upon interacting with the wave scatterer, each of the pre-distorted wave fields is reshaped to form an object wave field that forms a predetermined pattern in the projection volume.
A near-eye display, comprising:
- a waveguide;
- a holographic element comprising a plurality of holographic components in different positions along the waveguide;
- a light field projector configured to project a first light field into the waveguide via an optical coupler for propagation to the holographic components;
- and
- a controller coupled to the light field projector, wherein the controller is configured to determine the first light field and to cause the light field projector to project the first light field into the waveguide as a plurality of propagating modes,
- wherein each of the holographic components redirects a different one of the propagating modes of redirects the first light field from the different positions along the waveguide to form a second light field directed into an eyebox, and
- wherein the second light field is perceptible within the eyebox by a viewer's eye as a virtual image at a distance from the eye and the holographic element.
Dependencies are inferred from the claim text.