1 April 1991 Rotatable single wedge plate shearing interference technique for collimation testing
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Abstract
We describe the basic theory and technique of a collimation testing method based on analysis of the lateral shearing interference fringe. The changed fringe spacing and the orientation after rotation of a single wedge plate through 180 deg. indicate the degree of collimation of the light beam. The preliminary experimental equipment is described, precision analyses are presented, and the usefulness for practical applications is demonstrated.
Deyan Xu, Klaus-Juergen Rosenbruch, "Rotatable single wedge plate shearing interference technique for collimation testing," Optical Engineering 30(4), (1 April 1991). https://doi.org/10.1117/12.55822
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