Infrared filter system for fluorescent lighting
US6515413B1 · kind B1 · utility
2Cited by
6References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1999 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Apr 22, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus that effectively filters infrared light from fluorescent lighting and that is easily adapted to typical fluorescent lighting and assemblies. A transparent tube is provided for receiving a fluorescent lamp wherein the transparent tube includes a first end, a second end, an inner surface and an outer surface. An infrared block is located adjacent to the inner surface of the transparent tube. Furthermore, a first cap is provided for capping the first end of the transparent tube and a second cap is provided for capping the second end of the transparent tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.