Transmission type screen
US6700703B2 · kind B2 · utility
1Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2002 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Jul 2, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/62
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A transmission type screen is disclosed. The transmission type screen comprises a Fresnel lens sheet, a lenticular lens sheet provided with convex black stripes on the light-exit surface, and a diffusion sheet having an uneven surface on one side thereof. In the transmission type screen, the uneven surface of the diffusion sheet is joined to the lenticular lens sheet at the top portions of black stripes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.