Red Green Blue Light Emitting Diode – more commonly know by the shortened RGB LED. So what is RGB and why is it the most essential component of colour lighting?
Red Green Blue Color Model
The RGB color model is based on the mixing of additive primary colors Red, Green and Blue to produce a wide array of colours, with the first technology to utilise this being television and video cameras. However the theory of red, green and blue has existed for much longer and is based on the human perception of colour, that being we have three colour receptors for vision
– trichromatic – combining three different wavelengths of the electromagnetic spectrum in order to perceive the world around us in colour.
Although theatre lighting designers have been very familiar with mixing of Red Green and Blue light to produce different color effects on stage through the use
of filters, it is only recently that LEDs have become available which incorporate all three colours within the same module. As a result it is now possible for architectural lighting designers to take advantage of this phenomenon and
apply it to their projects.