Optical illumination device
US5918974A · kind A · utility
6Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1997 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Apr 11, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4298
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An optical illumination device includes a light emitting section of discharge type and a condenser mirror placed behind the light emitting section to introduce illumination light into a light transmitting fiber. The light emitting section is placed so that its vertical component is larger than its axial component. In this way, rays from the light emitting section can be efficiently introduced into the light transmitting fiber of small diameter without loss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.