Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading
Patent
1992-09-30
1994-10-11
Bertsch, Richard A.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
With antiglare or shading
351 84, 351135, G02C 712
Patent
active
053551834
ABSTRACT:
Disclosed and claimed are a substantially hermetically sealed variable density ophthalmic device, preferably in the form of sunglasses or goggles. The device includes front and rear frame components which matingly fit and seal together. The polarized or retarder lenses include at least one pair of rotatable lenses. These lenses are preferably rotatable by a flexible strip having a knob. A grommet or boot or the combination thereof seals the interface where the strip enters a frame component.
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Polaroid, "Linear and Circular Polarizers To eliminate glare and enhance contrast for a variety of application . . . in all industries", May 1992.
Andrea Eyewear, Inc.
Basichas Alfred
Bertsch Richard A.
Kowalski Thomas J.
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