We have studied the stability of systems of plane mirrors by using a new way to describe ray transformations caused by such systems. All stable systems comprising as many as three mirrors are described and classified. Besides the well-known corner cube, infinitely many stable retroreflecting and direction-preserving three-mirror systems have been found.
© 1998 Optical Society of America
Yaakov Friedman and Naftali Schweitzer, "Classification of Stable Configurations of Plane Mirrors," Appl. Opt. 37, 7229-7234 (1998)