Fluorescent lamp dimmer system
US6225760A · kind A · utility
91Cited by
4References
33Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 28, 1998 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Jul 28, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/3921
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fluorescent lamp controller with dimming capability has its dimming function disabled for a given period of time, preferably about 100 hours, when new lamps are connected to a ballast to "season" the lamps by driving them at full rated current. The dimming function is restored after the seasoning interval has passed. An indicator is provided to inform the user that the seasoning function is in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.