Illuminated display board having an angled light source
US9443453B2 · kind B2 · utility
1Cited by
24References
31Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 14, 2013 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Sep 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F2013/222
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An illuminated display board includes a frame, a light-transmissive panel, and a light source. The light source is positioned within the frame, and adjacent the light-transmissive panel. The light source is oriented at an angle of between about 25 degrees and about 50 degrees with respect to the light-transmissive panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.