Device for making opthalmic measurements and method

Details Device for making opthalmic measurements and method Device for making opthalmic measurements and method

1975-10-02

1977-11-01

Aegerter, Richard E.

Geometrical instruments

Gauge

Spectacle

351 5, A61B 310

Patent

active

040559009

ABSTRACT:
A device for use in the art of fitting lenses to spectacle frames wherewith ophthalmic measurements are applied directly to frames selected by patients. A frame without lenses is adjusted to fit the patient, the measuring device is then applied to the frame and the whole placed upon the face. Horizontal and vertical measurements of distances from lateral and inferior points on the frame rims to a desired location of lens optical center relative to pupil are made for each eye and these measurements are forwarded to the lens finishing shop for edging and fitting of the lenses.

REFERENCES:
patent: 638727 (1899-12-01), Lauch
patent: 1505447 (1924-08-01), Uhlemann
patent: 1912107 (1933-05-01), Uhlemann
patent: 2491312 (1949-12-01), Henry et al.
patent: 3740857 (1973-06-01), Nerad

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