Illuminating device
US4974919A · kind A · utility
155Cited by
13References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1989 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Jul 25, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/70583
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An illumination device includes a light source for supplying light, an optical system for forming plural light fluxes from the light supplied by the light source, a scanning system disposed to receive the light fluxes formed by the forming optical system and for scanning the light fluxes substantially at the same time, and another optical system effective to superimpose the scanned light fluxes upon one another on a surface to be irradiated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.