Projection apparatus with colored light path combination through a transparent optical element
US7172289B2 · kind B2 · utility
0Cited by
13References
31Claims
0Family size
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Key dates
| Filing date | Apr 30, 2004 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Apr 30, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B33/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A projection apparatus is formed employing a transparent optical element to receive a plurality of colored light bundles from a plurality of light sources along a plurality of optical paths and to emit the plurality of colored light bundles along a substantially common optical path due, at least in part, to refraction through the transparent optical element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.