Abstract

The analysis presented in a previous paper 1 on the Lower test is extended to show that the parabolic correction existing on a mirror figured to this test is a function only of observation distance and not of mirror relative aperture. Graphs are presented to show this relationship.

It is suggested by the author that the Lower test may be of value in rough figuring of certain elliptical mirrors since, to third-order approximation, an under-corrected parabola is identical to an ellipse.

© 1959 Optical Society of America

Sensitivity of a Rapid Test for High Speed Parabolic Mirrors*

D. H. Rank, Paul Yoder, and Joseph Vrabel
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Projective Formulation of the Problems of Geometrical Optics. II. The Design of a Centered Optical System

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