MTF measurement via diffraction shearing with optically superimposed gratings

Year: 1979

Authors: Arecchi F.T., Bassan M., Jacobs S.F., Molesini G.

Autors Affiliation: Istituto nazionale di ottica, Largo E. Fermi 6, 50125 Firenze, Italy

Abstract: The use of double grating diffraction shearing for measurement of MTF is demonstrated.By superimposing two gratings optically we avoid the problem of grating contact and subsequent degradation.This simple and economical method is especially advantageous for optical systems with large pupil for which a rotating plate interferometer becomes prohibitively expensive.© 1979 Optical Society of America.

Journal/Review: APPLIED OPTICS

Volume: 18 (8)      Pages from: 1247  to: 1248

KeyWords: Modulation transfer function; Optical testing; Diffraction gratings; Optical variables measurement
DOI: 10.1364/AO.18.001247

Citations: 4
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