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  • colorimeter 1. A visual instrument in which the amounts of three primary lights that match a test color when additively mixed are determined and provide a measure (the tristimulus values) of the test color. 2. A visual or photoelectric instrument for measuring...
  • Beer's law Transmittance of a stable solution is an exponential function of the concentration of the absorbing solute.
  • tristimulus values The values of the three standard or matching stimuli necessary to provide a match with the light under trial, in a specified trichromatic system.
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