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Proceedings Paper

Improvements in OTF measurement technique
Author(s): Michael Schulz
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Paper Abstract

The uncertainty of optical transfer function (OTF) measurements of lens systems -- as one example of high-precision optical measurement technique -- can be greatly reduced by computer-aided measurement control and analysis. Improvements resulting in a high repeatability are described and the problems of some analysis concepts are discussed. With such a high repeatability (10-3) and resolution possible, the influences of temperature and the resulting thermal expansion dynamics of the mechanical set-up and the measuring system itself become factors limiting the reproducibility. Realizations of temperature controlled or thermally insensitive designs are presented.

Paper Details

Date Published: 1 January 1993
PDF: 12 pages
Proc. SPIE 1781, Specification and Measurement of Optical Systems, (1 January 1993); doi: 10.1117/12.140983
Show Author Affiliations
Michael Schulz, Physikalisch-Technische Bundesanstalt (Germany)

Published in SPIE Proceedings Vol. 1781:
Specification and Measurement of Optical Systems
Lionel R. Baker, Editor(s)

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