Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With auxiliary lenses movable in and out of the optical path
Patent
1995-02-22
1996-02-20
Sikes, William L.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
With auxiliary lenses movable in and out of the optical path
351149, 351158, 2444, G02C 708
Patent
active
054933480
ABSTRACT:
A pair of glasses to which an eyeglass accessory is secured by use of at least one T-slot on the pair of glasses and a complementally-shaped T-bar on the eyeglass accessory. In a preferred embodiment the eyeglass accessory allows corrective prescription lenses to be mounted inside a pair of safety glasses.
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Chin John
Herald, Jr. A. Glen
Crews, Inc.
Greigg Edwin E.
Greigg Ronald E.
Mai Huy
Sikes William L.
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