Apparatus and method for monitoring the life of arc lamp bulbs
US6362573B1 · kind B1 · utility
25Cited by
3References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2000 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Mar 30, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus and method are described for monitoring the life of an arc lamp bulb. The apparatus includes a memory that stores a threshold property value. An arc lamp bulb property sensor acquires a current arc lamp bulb property value. A control circuit compares the current arc lamp bulb property value with the threshold property value. The control circuit generates an end-of-life notification signal when the current arc lamp bulb property value meets the threshold property value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.