Eye testing device for prescribing eyeglasses

Details Eye testing device for prescribing eyeglasses Eye testing device for prescribing eyeglasses

1977-03-10

1978-12-12

Sacher, Paul A.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Folding

351 26, 351167, 351154, A61B 304, A61B 302, G02C 702, G02C 500

Patent

active

041293614

ABSTRACT:
A device for determining a prescription lens for eyeglasses to be used by highly hyperopic patients, in which a frame mounted lens is inserted in a trial lens mounting to project on either side of the frame with one surface of the lens formed with an aspherical convex curvature and the other surface of the lens being concave and formed with a spherical curvature.

REFERENCES:
patent: 3169247 (1965-02-01), Davis et al.

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