Digital projection display system with external light source
US7077528B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2004 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | May 28, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/208
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A digital projection display system includes one or more digital projection displays. Each digital projection display has an external light source producing as an output a light beam, an internal optics system, and a housing in which the internal optics system is received, but wherein the external light source is located external to the housing. A display screen forms one face of the housing. Preferably, an optical fiber extends from the output of the external light source to an input of the internal optics system. Multiple digital projection displays may be illuminated by a single external light source using multiple optical fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.