Patent · US Active

Method for generating light with a desired light colour by means of light-emitting diodes

US8928253B2 · kind B2 · utility

0Cited by

25References

5Claims

0Family size

Assignee

Diehl Aerospace GmbH · DE

Inventors

Swen Bergeler · Bad Doberan, DE
Yvonne Bodschwinna-Kangarakis · Nuremberg, DE
Frank Schmid · Poppenricht, DE

Key dates

Filing date	Feb 14, 2013
Grant date	Jan 6, 2015
Priority date	—
Expiry date	Feb 14, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH05B45/20
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a method for generating light with a desired light color by using at least one light-emitting diode emitting red r-LED, at least one light-emitting diode emitting green g-LED, at least one light-emitting diode emitting blue b-LED and at least one light-emitting diode emitting white w-LED. In order to improve the CRI value, according to the invention it is proposed that weighting values ascertained according to the RGB algorithm and further weighting values ascertained according to the RGBW algorithm be combined together by using a correction factor.

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