This article presents two techniques to test the quality of corner reflectors. The first technique uses an autocollimation setup while the second one is based on interferometry. Several corner reflectors were tested with both methods and the results indicate that the characteristics of a corner reflector as provided by the manufacturer are generally not sufficient to select the most appropriate corner reflector for a given experiment.
J. C. Anctil,
"Optical Testing Of High-Quality Corner Reflectors", Proc. SPIE 0818, Current Developments in Optical Engineering II, (1 January 1987); doi: 10.1117/12.978911; https://doi.org/10.1117/12.978911