Ultraviolet-suppressed light source, coating agent used in the same, and method for manufacturing the same
US5051650A · kind A · utility
11Cited by
3References
23Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 14, 1990 |
| Grant date | Sep 24, 1991 |
| Priority date | — |
| Expiry date | Feb 14, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2218/112
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A film consisting of a fine powder of zinc oxide and titanium oxide and an inorganic binder is formed on the outer surface of a light source. The fine powder serves as an absorbent for ultraviolet radiation emitted from the light source. The film is formed on the outer surface by spraying a coating agent prepared by dispersing the above components in an organic solvent on the outer surface of the light source and heating and drying the coating agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.