Overlays for classroom and optometric use.
Perceptual distortion of printed text can sometimes be reduced by placing upon the page a sheet of coloured plastic (overlay). The colour that best reduces the distortion differs from one individual to another and may need to be selected with precision. A set of overlays has been developed that samples the CIE UCS diagram systematically. The overlays are robust and have a matte finish. They can be combined in an intuitive way to provide a wide range of chromaticities.
Wilkins
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MRC Applied Psychology Unit, Cambridge, UK.
D001296:Audiovisual Aids; D002648:Child; D003116:Color; D004493:Education; D004867:Equipment Design; D005139:Eyeglasses; D006801:Humans; D009907:Optometry; D010465:Perception