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Lapping & Polishing with an Actively Stressed Lap

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Abstract

A method is proposed for polishing fast aspherics with a lap whose shape is continuously changed under computer control as it moves over a rigid mirror blank. The required changes of radius, astigmatism and coma in a circular lap are made with edge bending levers and tensioning members with screw actuators.

© 1984 Optical Society of America

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