Zonal illumination for high dynamic range projection
US8860640B2 · kind B2 · utility
6Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2012 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Jun 15, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0905
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A zonal illumination system for use in a projector, comprising a source of illumination; a first modulation stage for dividing light from the source of illumination into a plurality of zones having respective light intensities based on zonal lighting intensity of an image to be projected; and a second modulation stage for modulating light from the first modulation stage to generate the image to be projected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.