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Optical Engineering

Digital moire subtraction in optical engineering
Author(s): Colin Forno; Maurice Patrick Whelan
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Paper Abstract

Conventionally, for the most accurate measurements, interferometer systems are constructed from high-quality optical elements and include fine controls for precise alignment. In this alternative approach, all the errors of a poor quality, misaligned system are accepted then eliminated by a simple digital moiré process. The method offers the possibility of devising very large aperture optical systems for traditional and engineering interferometers from inexpensive and basic components. It can also offer benefits in other measurement techniques, including moiré.

Paper Details

Date Published: 1 October 2001
PDF: 9 pages
Opt. Eng. 40(10) doi: 10.1117/1.1402621
Published in: Optical Engineering Volume 40, Issue 10
Show Author Affiliations
Colin Forno, Institute of Systems, Informatics, and Safety (United Kingdom)
Maurice Patrick Whelan, European Commission Joint Research Ctr. (Italy)

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