Low pressure mercury vapor fluorescent lamps
US6683406B2 · kind B2 · utility
1Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2002 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Jul 11, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/76
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A low mercury consumption electric lamp is provided having a layer of a luminescent material comprising a phosphor selected from the group consisting of: (a) cool white phosphor comprising calcium halophosphate activated with antimony and manganese having an average particle size of about 8 to about 12 microns; and (b) a two phosphor blend of about 50% white calcium halophosphate activated with antimony and manganese and about 50% blue halo calcium halophosphate activated with antimony, wherein the blue halo phosphor has an average particle size of about 6.6 to about 10 microns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.