Panel-form illuminating system
US5980054A · kind A · utility
47Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1997 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Apr 24, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0068
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An efficient, luminous and energy-saving panel-form illuminating system suitable for mass-production, comprising at least a photoconductor, a linear light source at one side of the photoconductor, and a reflector; wherein grooves or protrusions are formed on the bottom surface of the photoconductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.