1 August 1993 Quantitative evaluation of optical surfaces by means of an improved Foucault test approach
Author Affiliations +
Abstract
Foucault knife-edge testing has been the classic qualitative test method for optical surface and wave-front quality measurement for more than one hundred years. We have developed an upgraded quantitative method, using off-the-shelf digital microprocessors and a solid state camera, to provide white-light evaluation of generalized optical surfaces with the precision and accuracy of computer-aided laser interlerometry. We describe a method that upgrades the knife-edge test from a qualitative test to a precise quantitative evaluation. The hardware is described and initial results for some aberrations are shown comparing the knife-edge test with interferometric measurements.
Donald E. Vandenberg, William D. Humbel, Alan Wertheimer, "Quantitative evaluation of optical surfaces by means of an improved Foucault test approach," Optical Engineering 32(8), (1 August 1993). https://doi.org/10.1117/12.145355
JOURNAL ARTICLE
4 PAGES


SHARE
Back to Top