Isolation of a third chromatic mechanism in the deuteranomalous observer

摘要: Abstract The anomalous chromatic mechanism of simple protanomalous trichromats has been found by the technique increment thresholds. Protanomalous possess as their long wavelength sensitivity one whose spectral curve closely resembles that erythrolabe. Its peak is displaced from normal 575 nm to approx. 545 nm. Neither erythrolabe measured in trichromats, nor had a described Dartnall nomograrm Rather, both steep decline on side peak. background most effective isolating was composition included sufficient intensity violet light reduce relative blue cone photopigment. shown be univariant under subsequent adaptation other heterochromatic which also were composed partially light.