Electrodeless low-pressure discharge lamp with thermally isolated magnetic core
US4922157A · kind A · utility
22Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1988 |
| Grant date | May 1, 1990 |
| Priority date | — |
| Expiry date | Jun 8, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J65/048
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The electrodeless low-pressure discharge lamp comprises a discharge vessel (1) having an inwardly extending protuberance (2) and an evacuated outer bulb (5) having a protuberance (6) projecting into the protuberance (2). A soft magnetic body (3) is arranged in the protuberance (6). It is a heat-resistant envelope (22) and is surrounded by an electrical coil (4) outside the envelope (22).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.