Light deflector and rear-projection screen
US7287881B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2005 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Sep 20, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V11/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The presented invention relates to a light deflector. The light deflector defining a light-incident side and a light-exiting side, the deflector comprising a plurality of reflector(42) arranged side-by-side in a predetermined orientation, each reflector having, a first reflection face(42A), provided on the deflector light-incident side, for reflecting incident light so as to focus the light, and a second reflection face (42B), provided on the deflector light-exiting side, for reflecting light reflected by the first reflection face of an adjacent reflection means(42). In accordance with the present invention, light utilization efficiency can be raised.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.