High angle rear projection system
US8599483B1 · kind B1 · utility
4Cited by
16References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2012 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Jun 5, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/625
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system for projecting content at an angle to a rear projection screen. The system includes a projector configured for projecting changeable electronic content and a rear projection screen for receiving the projected content at an angle and displaying the projected content. The rear projection screen includes a turning film having prisms facing toward or away from the projector. For prisms facing toward the projector, a protective film covers the turning film. When the projected content is displayed on the rear projection screen, the content has a substantially uniform appearance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.