Fluorescent tanning lamp with improved service life
US6741023B2 · kind B2 · utility
3Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2001 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Dec 25, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrode shield for a fluorescent tanning lamp comprising an open cup encircling a filament or electrode increasing the service life of the fluorescent tanning lamp. The cup having an open end acts as a shield reducing the sputtering of impurities onto the glass tube and contaminating the phosphor surface. In one embodiment, the cup is electrically and thermally coupled to an electrode support. The life of the fluorescent tanning lamp is greatly increased despite the use of relatively high currents and large number of on and off cycles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.