Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading
Patent
1995-01-05
1997-09-02
Dang, Hung X.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
With antiglare or shading
351 41, G02C 712
Patent
active
056637799
ABSTRACT:
A sealed, polarizing lens assembly including a frame, a first light polarizing lens element, a second light polarizing lens element superimposed with the first lens element and rotatable in relation to the first lens element. The frame and the first element define a sealed chamber in which the second element is entirely enclosed and rotatable relative to the first pair of elements. Means for rotating the second internal element in the sealed chamber relative to the first pair of elements are provided. In one form the means for rotating the internal element in the seal chamber comprise a sealed gearing mechanism with user-accessible external actuators. The sealed, easily-adjusted lens assembly of the invention prevents contamination of internal lens surfaces by dust and moisture, for example. The seal chamber can also be provided with a fluid or gas with desired optical or thermal barrier characteristics.
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Dang Hung X.
Ozmix, Inc.
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