Modular light-diffusing or reflecting plastic panel
US4428030A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 25, 1982 |
| Grant date | Jan 24, 1984 |
| Priority date | — |
| Expiry date | Oct 25, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2131/406
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This modular light-diffusing or reflecting plastic panel, notably for photography, motion-picture and television, comprises a cut panel (1), of semi-rigid material having formed therein by pressing a series of grooves (2, 3, 4), oriented to permit the folding of the panel (1) in different planes in order to impart a three-dimensional configuration thereto with multiple faces; folding tabs and tongues (8, 9, 12) are formed along the panel periphery for assembling it with other similar panels or closing the panel. Various three-dimensional configurations may be given to this panel while preserving its stability in the upright position on a horizontal planar surface. This panel is very light in weight and capable of diffusing or reflecting light in all possible angular directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.