Combined day and night weapon sight

Details Combined day and night weapon sight Combined day and night weapon sight

2011-06-14

2011-06-14

Lavarias, Arnel C (Department: 2872)

Optical: systems and elements

Having significant infrared or ultraviolet property

Including alternative optical path or optical element

C359S399000, C042S111000, C042S119000

Reexamination Certificate

active

07961381

ABSTRACT:
A combination day
ight sight includes an image intensifying sensor/display combination and a daytime optical path length compensator that may be selectively placed within the optical path. Use of the optical path length compensator when the image intensifying sensor/display is not being used eliminates the need for moving optical elements. The night sight therefore requires no change in focus or bore sight adjustment after switching between day and night operations.

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