5 years - Sill Lighting

LED BasicsBinning of LEDsDue to the production process,LED chips demonstrate differingfeatures with respect tochromaticity coordinates andluminosity class. In order to limitthis dispersion, a selection andclassification of the LED chipsis carried out, this process iscalled„Binning“.Manufacturers of high quality,high power LEDs carry out the"binning process" according tothe ANSI standard (ANSI standsfor American Standard Instituteand is the counterpart to theEuropean norm EN). WILA onlyuses LEDs and LED modules thatare classified according to ANSIand ensures that only predefinedbinning classes flow into the lightproduction.Colour deviation or chromaticitystability - Mac AdamsThe homogeneity of the coloursis of particular importance for thecombination of a larger numberof LEDs. Adjacently arrangedluminaires should not exhibit anyperceptible difference in colour(especially when they have to fulfilvertical lighting functions).Another quality criterion for thecolour perception of LED Modulesor Arrays is its representation inthe form of MacAdams ellipses,which are grouped around adefined chromaticity coordinate.The less the dispersion of theLEDs around the chromaticitycoordinate, the greater thehomogeneity. The number ofMacAdams ellipses, meaning thedeviation from the target chromaticitycoordinate, is given in theSDCM (Standard Deviation ofColour Matching). Deviations of< 2 SDCM are classified as being‘imperceptible to the eye’.With < 2 SDCM, the WILA LEDproduct family E Connect NeroAccent offers the currentlygreatest homogeneity inLED lamps.154 WILA