Eye testing apparatus

Details Eye testing apparatus Eye testing apparatus

1975-08-07

1976-09-28

Dixon, Harold A.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Folding

351 17, A61B 302

Patent

active

039828280

ABSTRACT:
Eye testing apparatus including a control unit having a control display panel having a number of distributed electrical lights adapted to be illuminated; and electrical connection means for connecting the control unit to a source of electrical energy; a remote scanner unit adapted to be electrically connected to the control unit, and including a scanner display panel provided with electrical lights, positioned corresponding to the lights on the control display panel, and which are adapted to be illuminated corresponding to the illumination of the lights on the control display panel, the scanner display panel also having a fixing light; and operation means for causing any one or more lights on the control display panel and the corresponding light or lights on the scanner display panel to be illuminated for observation by a person viewing the scanner display panel.

REFERENCES:
patent: 3025755 (1962-03-01), Koetting
patent: 3172404 (1965-03-01), Copenharer et al.
patent: 3883234 (1975-05-01), Lynn

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