EP 2186382 A1 20100519 - METHOD AND DEVICE FOR ADJUSTING THE COLOR OR PHOTOMETRIC PROPERTIES OF AN LED ILLUMINATION DEVICE
Title (en)
METHOD AND DEVICE FOR ADJUSTING THE COLOR OR PHOTOMETRIC PROPERTIES OF AN LED ILLUMINATION DEVICE
Title (de)
VERFAHREN UND VORRICHTUNG ZUR EINSTELLUNG DER FARB- ODER FOTOMETRISCHEN EIGENSCHAFTEN EINER LED-BELEUCHTUNGSEINRICHTUNG
Title (fr)
PROCÉDÉ ET DISPOSITIF DE RÉGLAGE DES PROPRIÉTÉS CHROMATIQUES OU PHOTOMÉTRIQUES D'UN DISPOSITIF D'ÉCLAIRAGE À DEL
Publication
Application
Priority
- EP 2008061887 W 20080908
- DE 102007044556 A 20070907
Abstract (en)
[origin: WO2009034060A1] The invention relates to a method for the temperature-dependent adjustment of the color or photometric properties of an LED illumination device having LEDs or LED color groups emitting light of different colors or wavelengths, emitting light of the same color or wavelength within a color group, the luminous flux portion thereof determining the light color, color temperature, and/or the color location of the light mixture emitted by the LED illumination device, characterized by measurement of the board temperature and/or junction temperature of at least one LED, determination of at least one temperature-dependent value determining the emission spectra E(?) of the variously colored LEDs as a function of the wavelength of the variously colored LEDs from calibration data stored for each of the variously colored LEDs, determination of the luminous flux portions of the variously colored LEDs for a light mixture comprising a prescribed light color, color temperature, and/or color location at the measured temperature as a function of the at least one temperature-dependent value determined, and adjustment of the determined luminous flux portions at the variously colored LEDs.
IPC 8 full level
H05B 33/08 (2006.01); H05B 44/00 (2022.01)
CPC (source: EP US)
H05B 45/20 (2020.01 - EP US); H05B 45/22 (2020.01 - EP US); H05B 45/28 (2020.01 - EP US); H05B 45/325 (2020.01 - EP US)
Citation (search report)
See references of WO 2009034060A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
DE 102007044556 A1 20090312; EP 2186382 A1 20100519; EP 2186382 B1 20180725; JP 2010538434 A 20101209; JP 5386488 B2 20140115; US 2010301777 A1 20101202; US 8708560 B2 20140429; WO 2009034060 A1 20090319
DOCDB simple family (application)
DE 102007044556 A 20070907; EP 08803855 A 20080908; EP 2008061887 W 20080908; JP 2010523530 A 20080908; US 67689008 A 20080908