Mercury electrodeless discharge lamp and method of its fabrication
US3993379A · kind A · utility
4Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1975 |
| Grant date | Nov 23, 1976 |
| Priority date | — |
| Expiry date | Dec 22, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J65/044
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a mercury electrodeless discharge lamp for use in spectrophotometric analysis, particularly atomic absorption spectrophotometry, and a method of its fabrication. Unreduced mercuric oxide (HgO) is employed as the source of mercury in the lamp. In fabricating the lamp, a small quantity of mercuric oxide is introduced into a lamp bulb which has been previously cleansed and flushed with noble gas. The bulb is heated to a temperature just below the decomposition point of the mercuric oxide. The bulb is then flushed with a noble gas, filled to the desired pressure with a noble gas and sealed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.