Film image display system
US6428322B1 · kind B1 · utility
4Cited by
1References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 4, 2000 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Nov 10, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B1/48
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developed film is illuminated to project its image onto a rear projection screen. A transparent case with a clear liquid filled therein is arranged, and the film is accommodated in the case. A writable transparent or translucent sheet is arranged over a front side of the rear projection screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.