Patent · US Active

Lighting device

US9528691B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Ales Markytan · Regensburg, DE
Christian Gaertner · Regensburg, DE
Horst Varga · Lappersdorf, DE

Key dates

Filing date	May 11, 2012
Grant date	Dec 27, 2016
Priority date	—
Expiry date	Oct 7, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21Y2115/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A lighting device has a carrier with a mounting face. A number of light-emitting diodes include at least two of the light-emitting diodes suitable for emitting light of different colors during operation. At least one color sensor, during operation, detects the light of at least one of the light-emitting diodes. At least one light-measuring face is illuminated by light of at least one of the light-emitting diodes and reflects and/or scatters at least a portion of this light. The light-emitting diodes and the at least one color sensor are arranged on the mounting surface, the at least one light-measuring face is arranged at a distance from the carrier, and the at least one color sensor; detects for the most part light reflected by the at least one light-measuring face from at least one of the multiplicity of light-emitting diodes.

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