Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Combined
Patent
1991-09-16
1992-11-10
Bovernick, Rodney B.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Combined
351 41, G02C 100
Patent
active
051628244
ABSTRACT:
A spectacle lens structure includes a support frame mounting a rear slidable lens frame relative to a forward fixed lens frame, wherein the rear frame includes respective right and left temple legs, wherein each temple leg includes a drive motor rotatably mounting a drive screw to effect relative displacement of the rear lens frame relative to the forward lens frame to alter magnification of the spectacle structure in use. Additionally, a modification of the invention includes clamp structure mounted to the forward lens frame to effect distortion of the forward lens frame and the associated lenses to thereby alter magnification of the forward lens members mounted within the forward lens frame.
REFERENCES:
patent: 4865438 (1989-09-01), Wada
Bovernick Rodney B.
Gilden Leon
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