Projector with spectral filter
US6956702B2 · kind B2 · utility
11Cited by
14References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 23, 2003 |
| Grant date | Oct 18, 2005 |
| Priority date | — |
| Expiry date | Apr 28, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/315
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projector projects pixels to form an image in accordance with image data. The projector includes a modulator which modulates light from a light source and outputs projected pixels in a plurality of color spectral bands. The projector has a light source with a non-uniform spectral power distribution with spectral energy within each of the plurality of color spectral bands. A first notch filter removes spectral energy from a first spectral range within a first color spectral band to improve gamut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.