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Optical Engineering

Optical Flatness Standard
Author(s): William Primak
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Paper Abstract

Matters relevant to preparing an optical flatness standard are discussed, such as selection of the material, surface preparation, bulk viscoelastic deformation, thermoelastic deformation, refractive errors, reduction of interferograms of plates examined in pairs, absolute calibration by intercomparison of two flats examined in two orientations, and the combination of several contours to obtain the figure of the plate. The contours are given as Fourier sine series expansions, and a technique for obtaining the coefficients is described.

Paper Details

Date Published: 1 December 1984
PDF: 10 pages
Opt. Eng. 23(6) 236806 doi: 10.1117/12.7973387
Published in: Optical Engineering Volume 23, Issue 6
Show Author Affiliations
William Primak, Argonne National Laboratory (United States)

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