Fluorescent lamp with non-scattering phosphor
US4469980A · kind A · utility
13Cited by
10References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1981 |
| Grant date | Sep 4, 1984 |
| Priority date | — |
| Expiry date | Dec 21, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/44
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fluorescent lamp comprises a source of near ultraviolet radiation together with an outer shell at least partially surrounding the ultraviolet source and comprising an ultraviolet transmissive material, the shell having embedded or dissolved therein a phosphor material having an indexed refraction approximately, but not quite equal, to the index of refraction of the shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.