Inductively coupled substantially flat fluorescent light source
US5500574A · kind A · utility
15Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1994 |
| Grant date | Mar 19, 1996 |
| Priority date | — |
| Expiry date | Sep 28, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electrodeless, low pressure, fluorescent discharge lamp of high aspect ratio, with a substantially flat spiral rf coil adjacent a back face (and insulated therefrom), that emits light through a front surface or selected portions under control of internal reflective and phosphor coatings placement to afford minimum resonance trapping, high efficiency and uniform illumination of high specific intensity over a selected area of the front wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.