Abstract

The optical test for the flatness of a plane mirror in conjunction with a concave spherical mirror has been analyzed in terms of the hyperboloid to which it can be thought to be referenced. This geometrical approach renders obvious the requirement to make two tests, the second after rotating the plane mirror 90° about its normal. The expression for the separation of the astigmatic foci for a long radius of curvature, nearly flat, mirror is in agreement with previous derivations.

© 1970 Optical Society of America

Ritchey–Common sparse-aperture testing of the Giant Steerable Science Mirror

Qichang An, Jingxu Zhang, Fei Yang, Hongchao Zhao, and Haifeng Cao
Appl. Opt. 57(27) 7764-7769 (2018)

A Suggested Procedure for Testing Large Cassegrainian Optical Systems

J. D. Lytle
Appl. Opt. 9(11) 2497-2500 (1970)

Ronchi Test of Aspherical Surfaces, Analysis, and Accuracy

A. Cornejo and D. Malacara
Appl. Opt. 9(8) 1897-1901 (1970)

A Simple Interferometric Method for Workshop Testing of Optics

J. B. Saunders
Appl. Opt. 9(7) 1623-1629 (1970)

Testing of Aspherical Surfaces with Newton Fringes

D. Malacara and A. Cornejo
Appl. Opt. 9(4) 837-839 (1970)