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Overlays for classroom and optometric use
Author(s) -
Wilkins Arnold
Publication year - 1994
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1994.tb00567.x
Subject(s) - overlay , set (abstract data type) , computer science , distortion (music) , range (aeronautics) , diagram , artificial intelligence , computer vision , programming language , engineering , database , telecommunications , amplifier , bandwidth (computing) , aerospace engineering
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 matt finish. They can he combined in an intuitive way to provide a wide range of chromaticities.

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