Electrodeless lamp with profiled wall thickness
US5541475A · kind A · utility
29Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrodeless discharge lamp has a thinner wall portion located proximate a position of high applied power. Since the heat capacity of the thinner wall portion is smaller then the remainder of the bulb wall, the thinner wall portion cools faster when the lamp power is turned off, and the condensable part of the fill tends to condense at this bulb wall portion. When the power is turned on again, since the thinner wall portion is located at a position of high power application, the fill is available in such region to be evaporated, thereby resulting in more rapid starting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.