Night vision instrument focus device

Details Night vision instrument focus device Night vision instrument focus device

2011-06-28

2011-06-28

Spector, David N (Department: 2873)

Optical: systems and elements

Optical aperture or tube, or transparent closure

C359S738000, C359S407000, C359S410000

Reexamination Certificate

active

07969673

ABSTRACT:
Provided is a device for improving the focus of an object viewed using a night vision instrument.

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