Method for manufacturing an electrodeless lamp
US6666739B2 · kind B2 · utility
30Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2000 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | Mar 20, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2237/765
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The lamp consists of a hollow tubular body 1 with a closed end 2 and an open end 3. The body is of sintered ceramic material. A window 4 is sealed across the open end, the window and the body being united by a layer of frit 5. The window is of sapphire. Within the body is sealed an inert gas atmosphere 6 and a pellet charge of excitable material 7. In use, the lamp is subjected to RF electromagnetic radiation which heats it to 1000° C. causes it to emit visible light via the sapphire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.