Light source
US4766526A · kind A · utility
42Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1986 |
| Grant date | Aug 23, 1988 |
| Priority date | — |
| Expiry date | Jul 7, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V13/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light source which is capable of improving lightening efficiency is disclosed. The light source includes a phosphor layer provided at a part of a filter arranged adjacent to a light emitting lamp or arranged so as to serve as a reflection layer so that it may transmit light of the lamp required and be excited by a part of light of the lamp to emit light of a visible region to increase the intensity of light discharged from the light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.