Safety glasses

Details Safety glasses Safety glasses

1993-02-01

1994-08-30

Bertsch, Richard A.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

351 57, 351158, 2431, 2439, 2440, 128858, 359511, G02C 100, A61F 900

Patent

active

053432584

ABSTRACT:
Safety glasses for use with an endoscope and similar devices, the glasses being made of a frame, a first lens portion fixed to the frame, a second, moveable lens portion, and a member for connecting the second lens portion to the first lens portion so that the second lens portion is displaceable when an external force is applied against an outer surface of the second lens portion.

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patent: 5088809 (1992-02-01), Portney
patent: 5129717 (1992-07-01), Feinbloom

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