Foldable modular light diffusion box
US6106125A · kind A · utility
Inventors
Key dates
| Filing date | Sep 2, 1998 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Sep 2, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2131/406
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting box has a housing with an open front and open rear and a bar such as speed rail.TM. extending horizontally across the housing. Multiple stage-type lights are mounted on the bar and positioned to send light out the front of the box. The box also has a diffusion element (frame) disposed proximate its front end, and even may have multiple elements including having one element at an angle. The element or elements receive the light from the lighting instruments and diffuse it to provide a soft projected light from the box. In accordance with one aspect of the invention, this light may be used to provide diffused light as part of the key lighting for a stage or set, and may provide such soft projected lighting from a front (downstage) of the stage or set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.