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Appl Opt. 1970 Apr 1;9(4):837-9. doi: 10.1364/AO.9.000837.

Testing of aspherical surfaces with newton fringes.

Abstract

The shape of any aspherical surface with rotational symmetry can be very easily found with great accuracy using Newton fringes formed against a spherical test plate.To make it possible, a special mathematical procedure is devised for use with a special measuring system here described.

PMID:
20076289
[PubMed]
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