Projection display and lighting unit with diffusion optical device
US8066385B2 · kind B2 · utility
3Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2008 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | Nov 16, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B33/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A lighting unit that optimizes an oscillation frequency for oscillating a diffusion device and its amplitude amount and a projecting display using the lighting unit are provided. Driving of a light source driving unit is controlled on the basis of driving of the oscillation driving unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.