Abstract

A quantitative test for the evaluation of surface figures of concave aspheric surfaces using a Babinet compensator is reported. A theoretical estimate of the sensitivity is 0.002λ for a minimum detectable phase change of 2 π × 10−3 rad over a segment length of 1.0 cm.

© 1979 Optical Society of America

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Figures (4)

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Equations (15)

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