System for generating an image
US6185016A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 18, 2000 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Jan 18, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F15/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for generating an image comprising an illumination system having a light source and a plurality of holographic devices switchable between an active state wherein light from the light source is diffracted by the device and a passive state wherein the light is not diffracted by the device. A display device is positioned for illumination by the illumination system and operable to project a display image. The system further includes an optical projection device operable to receive the displayed image and form an intermediate image having a generally uniform illumination distribution on an optical diffuser. The diffuser is operable to project a resultant image with an emission angle larger than an emission angle of the display panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.