Colour Projection

A permutation of colour 'therapy' in which light is passed through sheets or slabs of gelatin of various colors onto the patient; according to its proponents, each color has a particular effect—e.g., red filtered light increases haemoglobin, blue light decreases fevers, etc.
References in periodicals archive ?
He created a colour projection of a basket of strawberries by using spinning wheels and mirrors - excitedly showing it to his staff in his London lab.
Accurate colour projection is critical to ensure these messages are clear and concise.