Self ballasted compact fluorescent lamp
US5541477A · kind A · utility
13Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1994 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Nov 30, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An elongated arc tube is folded into multiple parallel legs in a close packed peripheral array about a long, thin ballast housing, the combination constituting a retrofittable incandescent bulb replacement compact flourescent having a shorter overall length and a more uniform spatial light distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.