Linear integrating cavity light source used for generating an intense beam of light
US4868383A · kind A · utility
74Cited by
24References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1988 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Sep 8, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J1/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A linear light source for a film scanner includes means for generating an intense beam of light and an elongated cylindrical integrating cavity having diffusely reflective walls, and defining an input port through which the intense beam is introduced into the cavity and an output slit parallel to the long axis of the cylindrical integrating cavity to emit a uniform line of light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.