Reflector lamp having a reflecting section with faceted surfaces
US6586864B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2001 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Jul 4, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention is related to a reflector lamp comprising a parabolic primary reflecting section, a parabolic or spheric secondary reflecting section joined to the primary reflecting section, a parabolic or spheric tertiary reflecting section joined to the secondary reflecting section, and an incandescent or discharge light source. The secondary and tertiary reflecting sections have faceted surfaces which longitudinally extend along the surface thereof so that most (at least 50%) or substantially all the light reflected by the faceted surfaces avoids the light source and thus the light, which would be absorbed or scattered by the light source, is minimized or substantially eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.