Ceramic metal halide lamps
US4910432A · kind A · utility
17Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1988 |
| Grant date | Mar 20, 1990 |
| Priority date | — |
| Expiry date | Mar 28, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ceramic metal halide high pressure discharge lamp has an arc gap separating the discharge electrodes which is not more than 10 mm and a wall loading which is at least 50 W cm.sup.-2. The relatively small arc gap enables a relatively low operating voltage (in the range from 80V to 130V, say) to be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.