LED cyclorama light
US8152332B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 7, 2008 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Jan 2, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cyclorama light includes a generally enclosed housing forming an interior compartment having a normally horizontal housing axis and an open front defining a window generally arranged within a plane parallel to said axis. A reflector substantially covers the window and has an operative portion that has a substantially uniform cross-section along the housing axis. An LED light emitter array extends along a line substantially parallel to the housing axis, the reflector having a surface configuration and the LED array being arranged in relation to the reflector surface to provide a higher flux density directed toward a far end of a wall or surface to be illuminated and provide a lower flux density directed toward a direction of the near end of the surface to be illuminated, generating a transition flux density between the far and near ends of the surface to be illuminated. The LED array and/or the reflector have optical features for eliminating shadows in the projected light over the entire illuminated surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.