Open AccessCube-corner autocollimator with expanded measurement range
Author(s) -
Renpu Li,
Min Zhou,
Igor A. Konyakhin,
Ke Di,
Yongle Lu,
Junqi Guo,
Yu Liu
Publication year - 2019
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.006389
Subject(s) - optics , corner reflector , cube (algebra) , reflector (photography) , deflection (physics) , goniometer , range (aeronautics) , physics , materials science , light source , geometry , mathematics , composite material
A cube-corner is employed as a photoelectric autocollimator's reflector to extend the angle measurement range and the corresponding algorithms are deduced. Experimental investigations reveal that the measurement range is extended from 1.2° to 12° without enlarging the objective lens's aperture. The accuracy is better than 35" when the deflection is less than 8°.