Patent · US Active

Illumination device

US7586265B2 · kind B2 · utility

2Cited by

3References

18Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Karsten Heuser · Erlangen, DE
Arvid Hunze · Erlangen, DE
Ralph Paetzold · Roth, DE

Key dates

Filing date	Feb 21, 2007
Grant date	Sep 8, 2009
Priority date	—
Expiry date	Aug 21, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B20/30
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An illumination device is described that includes a light source that is an organic light-emitting diode and a control device capable of adjusting the current through the organic light-emitting diode, which increases current as the electric resistance of the organic light-emitting diode increases.

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