Device for testing color vision

Details Device for testing color vision Device for testing color vision

1974-07-11

1976-07-20

Sacher, Paul A.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Folding

351 36, 351 39, A61B 306

Patent

active

039703762

ABSTRACT:
The color vision of a subject to be tested is evaluated by the presentation of a series of test panels having different colors to the subject. Each pair of test panels has prescribed maximum emission values over established wavelength ranges and wavelength values. Depending upon the ability to discern colors of the subject to be tested, the respective pairs of test panels will appear to the subject to have different degrees of color and intensity, so that it can be determined whether or not the color vision of the subject being tested is normal or is protanopic deuteranopic and the degree of the latter color deficiencies can also be evaluated.

REFERENCES:
patent: 2453335 (1948-11-01), Morris
patent: 2464001 (1949-03-01), Shepard
patent: 3382025 (1968-05-01), Knoll
patent: 3801188 (1974-04-01), Hunt et al.

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