Fluorescent lamp unit with magnetic field generating means
US4855635A · kind A · utility
2Cited by
11References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1988 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Mar 22, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fluorescent lamp unit having a magnetic field generating means for improving the performance of the fluorescent lamp is disclosed. In a preferred embodiment the fluorescent lamp comprises four longitudinally extending leg portions disposed in substantially quadrangular columnar array and joined by three generally U-shaped portions disposed in different planes. In another embodiment of the invention the magnetic field generating means comprises a plurality of permanent magnets secured together to form a single columnar structure disposed within a centrally located region defined by the shape of lamp envelope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.