Patent · US Active

Illumination apparatus and method of producing a planar light output

US8264142B2 · kind B2 · utility

3Cited by

3References

15Claims

0Family size

Assignee

Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

Joerg Amelung · Dresden, DE
Joachim Wagner · Ludwigshafen, DE

Key dates

Filing date	Apr 2, 2009
Grant date	Sep 11, 2012
Priority date	—
Expiry date	Jan 21, 2030

Classification

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

Abstract

There is described an illumination apparatus with an organic light-emitting device with a first light exit face and an organic light-emitting device with a second light exit face larger than the first light exit face. The inorganic light-emitting device and the organic light-emitting device are arranged so that a planar light output in which light of the inorganic light-emitting device and light of the organic light-emitting device superimpose each other results.

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