anomaloscope


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anomaloscope

[ə′näm·ə·lə‚skōp]
(optics)
An optical instrument for testing color vision, in which a yellow light whose intensity may be varied is matched against red and green lights whose intensity is fixed.
References in periodicals archive ?
2,3) Specificity is 100%, compared with the Nagel anomaloscope, if 'misreadings' are distinguished from errors on vanishing designs.
d) They should have their colour vision retested with the anomaloscope
The anomaloscope allows evaluation of an individual's Rayleigh matches, ie the proportions of red and green light that need to be mixed to match a yellow.
A Rayleigh equation anomaloscope will therefore separate normals from colour deficient observers, protans from deutans and anomalous trichromats from dichromats.
The Oculus Heidelberg Mk 2 anomaloscope incorporates the Moreland equation: a mixture of blue and green lights to match a blue-green light.
The settings are robust, the results of the classifications are highly repeatable and there is very good agreement of the classification compared with the anomaloscope.