Dual-reflector floodlight
US5964522A · kind A · utility
16Cited by
14References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1997 |
| Grant date | Oct 12, 1999 |
| Priority date | — |
| Expiry date | Nov 28, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2131/407
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention provides a floodlight in which the lamp axis is offset from the axis of a reflector. In the preferred embodiment an arc lamp is oriented vertically when the reflector axis is oriented at an oblique downward angle. The reflector includes a back reflector having a parabolic reflecting surface and a front reflector having at least one ellipsoidal reflecting surface disposed symmetrically about the reflector axis. In a preferred embodiment the front reflector is hinged to the back reflector and can be pivoted away from the back reflector to expose the lamp to facilitate cleaning and maintenance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.