Projector cooling system
US5738427A · kind A · utility
8Cited by
7References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1997 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | Apr 14, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention includes a projector illumination system having a light source positioned between a condenser lens and a light-collecting reflector. The light source includes a bulb that is urged under compression against a surface of the condenser lens. The condenser lens receives a flow of cooling air over a surface opposite that against which the light source is in contact to minimize deformation of the condenser lens caused by heat emanating from the light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.