Optical occluder

Details Optical occluder Optical occluder

1987-11-30

1989-04-25

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

351205, 350578, A61B 310, G02B 2316

Patent

active

048242357

ABSTRACT:
An optical occluder adapted for use with monocular optical instruments having a variety of shapes and sizes, for blocking the vision the user's eye that is not looking through the instrument. The occluder includes a central retainer body to which are attached both a generally planar eye shield and a elastic cord of adjustable length. The cord can be selectively wrapped around an optical's instrument's eyepiece, to hold the occluder in a stable position relative to it, and the eye shield can be selectively positioned both radially and circumferentially relative to the central retainer, to suit the user's particular eye spacing and comfort.

REFERENCES:
patent: 1463938 (1923-08-01), Carter
patent: 1845796 (1932-02-01), Kaulke

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