Precision Radius and Spacing Measurement Using Interferometric-Gauge Bar Techniques

A.F. Slomba; J. J. Davis

doi:10.1364/OFT.1980.MB6

Workshop on Optical Fabrication and Testing
Technical Digest Series (Optica Publishing Group, 1980),
paper MB6
•https://doi.org/10.1364/OFT.1980.MB6

Precision Radius and Spacing Measurement Using Interferometric-Gauge Bar Techniques

A.F. Slomba and J. J. Davis

Optical Fabrication and Testing 1980

Oakland, California United States
4–6 June 1980
ISBN:

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Special Fabrication and Testing Techniques (MB)

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A. F. Slomba and J. J. Davis, "Precision Radius and Spacing Measurement Using Interferometric-Gauge Bar Techniques," in Workshop on Optical Fabrication and Testing, Technical Digest Series (Optica Publishing Group, 1980), paper MB6.

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Abstract

A technique is described for measuring the absolute radius of curvature of spherical optical surfaces by using a calibrated gauge bar and interferometry. A description of test arrangements, experimental considerations, and results of a particular measurement are presented. Accuracies of the order of a few parts per million are practicable when the technique is used.

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