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Proceedings Paper

Quantitative evaluation of optical surfaces using an improved Foucault test approach
Author(s): Donald E. Vandenberg; William D. Humbel; Alan Wertheimer
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Paper Abstract

Foucault knife edge testing has been the classic qualitative test method for optical surface and wavefront quality measurement for over one hundred years. We have developed an innovative method, using off the shelf CIigit.a1 microprocessors and a solid state camera, whereby quantitative evaluation of surfaces has been achieved. This paper will describe a method that upgrades the knife edge test from a qualitative test to a precise quantitative evaluation. The hardware is described and results are shown comparing the knife edge test with interferometric measurements.

Paper Details

Date Published: 1 December 1991
PDF: 9 pages
Proc. SPIE 1542, Active and Adaptive Optical Systems, (1 December 1991); doi: 10.1117/12.48836
Show Author Affiliations
Donald E. Vandenberg, Eastman Kodak Co. (United States)
William D. Humbel, Eastman Kodak Co. (United States)
Alan Wertheimer, Eastman Kodak Co. (United States)

Published in SPIE Proceedings Vol. 1542:
Active and Adaptive Optical Systems
Mark A. Ealey, Editor(s)

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