The TELESCAN Mark 2 is the first automated projector has to be equipped with a subtractive CMY controllable color mixing system.
The principle is that, become a standard throughout the entertainment industry, mixing filters Cyan, Magenta, and Yellow in the projector beam .
The trichromatic system developed on Mark-2 consists of three independent modules (one for each of three basic colors) on which two half sheets gelatins color films are mounted on a linkage chain by symetrized by reference , and allowing their progressive insertion in the light beam .
the position of this system, is the end of the light path, just before the output beam to the mirror, and in an area where the filters are not a sharp focal point, allowing a very linear mix of colors, with no visual perception of the displacement of the filters into the beam.
A fourth identical module includes a frost filter to a fuzzy effect of the beam.
CMY color mixing system - Telescan Mark-2
