Patent · US Active

Light-emitting device

US8338843B2 · kind B2 · utility

0Cited by

3References

39Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Florian Schindler · Traunstein, DE
Markus Klein · Glückstadt, DE
Benjamin Claus Krummacher · Regensburg, DE

Key dates

Filing date	Aug 28, 2007
Grant date	Dec 25, 2012
Priority date	—
Expiry date	Jan 6, 2028

Classification

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

Abstract

An embodiment of the invention concerns a light-emitting device with an adjustable, time-variable luminance. This is achieved through electrically conductive tracks that are applied to the first electrode area. The conductive tracks are driven in a time-variable manner with different levels of electrical power.

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