Rayleigh equation

Ray·leigh e·qua·tion

(rā'lē),
a ratio of red to green required by each observer to match spectral yellow.
Synonym(s): Rayleigh test

Rayleigh,

Lord John W.S., English physicist and Nobel laureate, 1842-1919.
rayl - unit of acoustic impedance.
Rayleigh equation - a ratio of red to green required by each observer to match spectral yellow. Synonym(s): Rayleigh test
Rayleigh test - Synonym(s): Rayleigh equation

Rayleigh equation 

A colour equation representing a match of yellow (usually 589 nm) with a mixture of red (usually 670 nm) and green (usually 535 nm). It is used to differ-entiate certain types of colour deficiencies. The anomaloscope is built on this principle. See defective colour vision.
References in periodicals archive ?
15]N of the residual nitrate increases in proportion to the logarithm of the residual nitrate fraction (Kendall 1998), which can be expressed using the classic Rayleigh equation (Mariotti et al.
Using the Rayleigh equation we calculated a linear relationship between N[O.