Deuterium arc lamp assembly with an elapsed time indicator system and a method thereof
US6909248B2 · kind B2 · utility
2Cited by
12References
36Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 26, 2002 |
| Grant date | Jun 21, 2005 |
| Priority date | — |
| Expiry date | Aug 26, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B47/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lamp system includes a light source and an elapsed time indicator system which is coupled to the light source. The elapsed time indicator system accumulates a count of elapsed time of operation of the lamp system. The count provides an indication of a life span of the lamp system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.