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22 June 2015 Method of increasing the working distance of optical-electronic autocollimator
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It’s considered the problem of the increase to tens of meters working distance of the optical-electronic autocollimators is studied when determining the angular position of objects. To solve this problem it is proposed to use a quadrangular pyramid-shaped reflector. By means computer models comparative analysis of the effectiveness of the proposed reflector and traditional flat mirror was carried out. Type of algorithm that allows to realize the required accuracy at longer distances was defined. Also radiation properties of systems of mirrors in the form of mirror-symmetric angles are investigated. Comparison of such mirror systems and proposed quadrangular pyramidal reflector was carried out.
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Igor A. Konyakhin and Anastasia A. Moiseeva "Method of increasing the working distance of optical-electronic autocollimator", Proc. SPIE 9525, Optical Measurement Systems for Industrial Inspection IX, 95252M (22 June 2015);

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