Rayleigh equation

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An index of a person's colour vision given by the proportion of light from the red and green parts of the visible spectrum that need to be mixed to match a standard yellow. Usually 670 nanometres (spectral red) is mixed with 535  nm (spectral green) until it matches 589  nm (spectral yellow). Also called the Rayleigh match. See also additive primary, anomaloscope, colour-blindness, colour equation, primary colour (1), tristimulus values. [Named after the English physicist Lord (John William Strutt) Rayleigh (1842–1919) who introduced it in 1881]

Subjects: Psychology.

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