Sign illumination system
US6964507B2 · kind B2 · utility
54Cited by
27References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 25, 2003 |
| Grant date | Nov 15, 2005 |
| Priority date | — |
| Expiry date | May 24, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/812
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A radiation-emitting device comprising a side-emitting optoelectronic device having an upper surface and a heat sink in thermal conductivity with the side-emitting optoelectronic device. A reflector at least partially surrounds the side-emitting optoelectronic device. The reflector is positioned and shaped to reflect the emitted light substantially in an output direction. A reflective, non-transparent layer is disposed adjacent the upper surface of the side-emitting optoelectronic device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.