A construction of a mirror system manufactured from the AMg-6 aluminum alloy by diamond microsharpening and intended to take the place of the rotary Abbe prism in the infrared spectrum region is presented. Using the technique of reducing a three-mirror system to the simplest mirror equivalent and vector-matrix method, primary errors of a mirror system are revealed and their influence on the picture bounce is studied. An adjustment technique adapted to a real construction is developed for a mirror system.
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