Creating designs with light and colour A professional lighting tool for setting the colour temperature

Red, green and blue: In the col-our triangle, one can see how it is possible to set various colours using the three primary colours from RGB lamps that are dim- mable from 0 % to 100 %. The colour proportions for the plot- ted colour locations of the sec- ondary colours are specified. In the colour space chromaticity diagram, each light colour is clearly defined by its colour location. The colour saturation of red and blue is exceptionally high; both colours are located at the edge of the coloured sur- face. The colour location of green is somewhat further towards the inside but also shows good col- our saturation. Zumtobel has mastered the art of achieving optimum, thorough mixing and maximum colour quality. This makes colours more dynamic. Intense primary colours and a professional control system are the basic requirements in order to exploit all the possibilities in the colour triangle, otherwise they remain only theoretical. Thanks to the use of special colour filters, CIELOS achieves maximum colour saturation and colour dynamism. The Planckian curve is shown in the chromaticity diagram alongside the saturated primary colours. It is equivalent to the closest matching colour temper- ature that a heated black body radiator achieves. The colour temperatures are equivalent to the light colours 3,000 K/warm white, 4,000 K/intermediate white, and 6,000 K/cool white.

CIE 1931 colour space chromaticity diagram

Colour location of a lamp RGB primary colour triangle Linear mixing Planckian curve Colour location of a secondary colour GREEN BLUE RED50 % Green50 % Blue 50 % Red 50 % Blue 50 % Green50 % Red2,700 K6,000 K Colour mixing between6,000 K and 2,700 K3,000 K4,000 K8,000 K
00.10.20.30.40.50.60.70.8 00.10.20.30.40.50.60.7

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