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Stylus Profilometer with an Optical Reference

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Abstract

Three-dimensional or x-y-z stylus profilometers are a well-established method for measuring non-rotationally symmetric aspheric surfaces.1 In this paper, the design of a three-dimensional stylus profilometer that uses an optical reference surface is presented. The benefits of using this reference structure are also discussed.

© 1998 Optical Society of America

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