Luminous edge lighted device
US4249231A · kind A · utility
10Cited by
1References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 3, 1979 |
| Grant date | Feb 3, 1981 |
| Priority date | — |
| Expiry date | Apr 3, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0058
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The device is adaptable for any panel of non-opaque material, whether it concerns advertisement, information panel, signboards, signposts or signalling posts or the like. The panel 1 is associated with at least one source of lighting 3 which faces one of the edges 2 of the panel. The panel carries an engraving 7 having a surface which reflects light and divides the incident beam into a series of pencils of light associated with various elements of the engraving.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.