Patent · US Active

Multiple positioned light source to achieve uniform or graded illumination

US7862195B2 · kind B2 · utility

26Cited by

11References

12Claims

0Family size

Inventors

Thomas E. Stack · Utica, US
David Douglas · Oak Park, US
Samuel Lee · San Francisco, US

Key dates

Filing date	Oct 9, 2007
Grant date	Jan 4, 2011
Priority date	—
Expiry date	Nov 10, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH01L2924/181
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An integrated and modular lighting system is disclosed. The lighting system includes a plurality of modules, each module including at least two echelons of light emitting diodes and a power supply on a common substrate. The modular lighting system is used to provide uniform illumination of an enclosed display stand.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.