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Apparatus for daylight color duplication

  • US 5,060,118 A
  • Filed: 04/06/1989
  • Issued: 10/22/1991
  • Est. Priority Date: 04/06/1989
  • Status: Expired due to Fees
First Claim
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1. A device for color mode switching, comprising a plurality of incandescent lamps, and eight first, second, third, fourth, fifth, sixth, seventh and eighth fluorescent lamps have the following chromaticity coordinates, respectively:

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    space="preserve" listing-type="tabular">______________________________________ x = .438-.442, y = .404-.408 x = .373-.377, y = .378-.382 x = .374-.378, y = .385-.389 x = .343-.347, y = .357-.361 x = .344-.348, y = .357-.361 x = .311-.315, y = .335-.339 x = .311-.315, y = .335-.339 x = .298-.302, y = .310-.314, ______________________________________ wherein said incandescent lamps are switched together, further wherein each of said fluorescent lamps is switched separately, further wherein a first switch controls said incandescent lamps, and a second, third, fourth, fifth, sixth, seventh, eighth and ninth switch controls said first, second, third, fourth, fifth, sixth, seventh and eighth fluorescent lamp, respectively, and further wherein the following switching combinations enable spectral emission of light which substantially duplicates the daylight chromaticity of the following colors;

    
    
    space="preserve" listing-type="tabular">______________________________________ Switching Combination Color Name ______________________________________ 56789 Medium Blue 56789 Light Blue 35678 Grey 356789 Silver 3456789 White 567 Green 134568 Yellow 156789 Bright Red 1234 Dark Beechwood 134 Medium Walnut 1456 Light Mesa Broad 14789 Flax 1789 Light Wheat, ______________________________________

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