Method and apparatus for testing flicker fusion frequency

Details Method and apparatus for testing flicker fusion frequency Method and apparatus for testing flicker fusion frequency

1980-04-18

1982-04-13

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Folding

351 39, A61B 302, A61B 300

Patent

active

043244602

ABSTRACT:
Apparatus for testing temporal vision including a target light produced on a portion of a viewing area. A boundary is provided between the target light and a background light, such being produced on substantially all of the viewing area. A first oscillator switches the target light on and off while a second oscillator is available to switch the background light on and off. A frequency control is provided to vary the rate of switching of the target light.

REFERENCES:
patent: 3424519 (1969-01-01), White
patent: 3814510 (1974-06-01), Adler et al.

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