Aspheric surface testing with a liquid compensatory interferometer

Details Aspheric surface testing with a liquid compensatory interferometer Aspheric surface testing with a liquid compensatory interferometer

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998opten..37.1364y&link_type=abstract

Optical Engineering 37(04), 1364-1367, Donald C. O'Shea; Ed.

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Scientific paper

A simple method of testing deep aspheric surfaces is presented. The
apparatus consists of a Twyman-Green interferometer and a liquid
compensatory container. Two lenses, one with spherical surfaces and the
other with a spherical surface and an aspheric surface, were tested by
using this method. The device is very simple and easy to assemble.

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