The cat's-eye retroreflector is a passive optical system consisting of a secondary mirror placed at the focal point of a primary lens. We analyze the cat's eye using the paraxial ray matrix approach. The position of the equivalent reflecting surface and the angular field of view of a realizable cat's eye are functions of the radius of curvature of the secondary mirror. The field of view is maximum for a secondary mirror with a concave radius of curvature equal to the focal length of the primary lens. We further derive the general dependence of retroreflection errors on misadjustment of the secondary mirror.
© 1975 Optical Society of America
Original Manuscript: February 14, 1975
Published: August 1, 1975
J. J. Snyder, "Paraxial ray analysis of a cat's-eye retroreflector," Appl. Opt. 14, 1825-1828 (1975)