Low pressure mercury vapor discharge lamp with heat conductive component
US6172452A · kind A · utility
26Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1998 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Jul 16, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/72
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A low pressure mercury vapor discharge lamp comprising a fluorescent tube having an amalgam container containing amalgam to control mercury vapor pressure at a steady lighting, a holder holding both ends of the fluorescent tube, a lighting circuit to light the fluorescent tube, a case accommodating the lighting circuit, and a base provided to the case, wherein the amalgam container and the base are connected with each other by a heat conductive component, so that the amalgam temperature is controlled at a proper value and the luminous efficiency is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.