Fluorescent lamp
US4272702A · kind A · utility
8Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1978 |
| Grant date | Jun 9, 1981 |
| Priority date | — |
| Expiry date | Jan 19, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fluorescent lamp constituted by joining a pair of shells of glass that at least one of the shells is molded. A recess is formed on a portion of the jointing surface of the shells so as to become circular when the shells are overlapped each other. An exhaust tube and lead-in wires of electrode stem are hermetically fixed in the recess by adhering or by welding. An anode getter plate is arranged independently from an electric circuit including an electrode filament.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.