Instrument flight simulation view limiting device

Details Instrument flight simulation view limiting device Instrument flight simulation view limiting device

1990-09-10

1992-03-31

Dzierzynski, Paul M.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

With antiglare or shading

434 35, 351 57, G02C 900

Patent

active

051002248

ABSTRACT:
A view limiting device especially suited for use in instrument flight training and simulated instrument flying. This device is adapted to clip onto a pair of spectacles and is swingable from a first view restricting position to a second unrestricted position of the line of vision of the wearer. The device is also made to fit over an instrument procedure chart book for storage. An alternate model can be used without spectacles.

REFERENCES:
patent: 2870446 (1959-01-01), Mitchell
patent: 3225459 (1965-12-01), Wilstein
patent: 3575497 (1971-04-01), LeBlanc
patent: 3629870 (1971-12-01), Paisley
patent: 4698022 (1987-10-01), Gilsen

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