Illumination device
US7690828B2 · kind B2 · utility
1Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2008 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Jun 19, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/96046
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illumination device comprising an LED (14) mounted on a rear of a PCB (12), and a light pipe (16) to direct light from the LED through an aperture (18) in the PCB to illuminate a legend (10) on the front of the PCB, the light pipe diffusing the light so as to prevent uneven illumination of the legend.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.