High lamp-power lighting system and fluorescent lamp
US7161302B2 · kind B2 · utility
1Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2004 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Oct 6, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/2988
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting system includes a fluorescent lamp 4 and a main body 1 for attaching the fluorescent lamp 4 thereto. The main body 1 is provided with a socket assembly 6 for the attachment of the fluorescent lamp 4, and an electronic ballast 7 for operating the fluorescent lamp 4 at dimmed levels (as well as at the full light level). The fluorescent lamp 4 is composed of a discharge tube formed of four U-shaped glass tubes that are connected together to form a square in plan view. Each glass tube has an inner diameter of 13.5 mm, and the discharge tube is filled with a rare gas containing neon and argon (at 50:50 ratio by volume).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.