Lamp having boron nitride reflective coating
US5168193A · kind A · utility
18Cited by
8References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1991 |
| Grant date | Dec 1, 1992 |
| Priority date | — |
| Expiry date | Sep 30, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01K1/325
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A coating of boron nitride disposed on a lamp arc tube or filament tube provides an integral reflector for reflecting light and heat emitted by the light source. One particularly useful application is linear, quartz incandescent heat lamps having a boron nitride coating disposed along one side of the filament chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.