Purkinje shift

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Purkin′je shift`


n.
the changes in perception of the relative lightness and darkness of different colors as illumination changes from daylight to twilight.
[1970–75; see Purkinje fiber]
References in periodicals archive ?
The Purkinje effect refers to the way in which the eye's relative receptivity to different colors changes according to the light, so that as our environment grows darker, we become more sensitive to shades of blue.
Be aware that LPVs (Miras) at maximum and SRs tend to be red, and take care to minimise the Purkinje effect.
A pronounced shift in the sensitivity of the dark-adapted eye toward the blue end of the spectrum, known as the Purkinje effect, causes a faint source of red light (such as the glowing ember of a distant cigarette) to be perceived as green.