Three dimensional virtual and augmented reality display system
US8950867B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 2012 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Apr 30, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0134
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system may comprise a selectively transparent projection device for projecting an image toward an eye of a viewer from a projection device position in space relative to the eye of the viewer, the projection device being capable of assuming a substantially transparent state when no image is projected; an occlusion mask device coupled to the projection device and configured to selectively block light traveling toward the eye from one or more positions opposite of the projection device from the eye of the viewer in an occluding pattern correlated with the image projected by the projection device; and a zone plate diffraction patterning device interposed between the eye of the viewer and the projection device and configured to cause light from the projection device to pass through a diffraction pattern having a selectable geometry as it travels to the eye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.