Cyclorama light
US6220731A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 10, 1998 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Nov 10, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2131/406
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cyclorama light includes a housing having generally opaque rear, bottom and side walls and an open front wall defining a window that extends from a region proximate to the upper end of the rear wall and a region proximate to the front end of the bottom wall and generally extending between the side walls. The housing defines a housing axis generally parallel to the rear and bottom walls and normal to the side walls. An elongate reflector essentially extends between the side walls and is mounted for rotary movements about the housing axis. An elongate lamp having a lamp axis is mounted on the reflector to maintain the lamp axis substantially coextensively with the housing axis, the reflector being configured to direct light generated by the elongate lamp with a predetermined intensity distribution through the window formed in the open front wall in a direction which is a function of the rotational position of the reflector about the housing axis. A filter is provided for covering the window with a color filter material, as well as an adjustment means for selectively adjusting the rotational position of the reflector about the housing axis. The direction of projection of the light e…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.