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Proceedings Paper

Equipment For Automatic MTF Testing Of Infrared And Visible Wavelength Optics
Author(s): T L Williams; N T Davidson
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Paper Abstract

The equipment is intended primarily for measuring the Optical Transfer Function (OTF), or Modulation Transfer Function (MTF), of lenses and afocal systems operating in the infrared (up to 14 m) or visible band of wavelengths. The OTF/MTF is obtained by measuring the line spread function (LSF) of the optical system and then using a microcomputer to convert this to the OTF or MTF. The microcomputer is also used to control motorized mechanical movements on the optical bench. However, the software has been written, so that where these are not provided the microcomputer will give the step-by-step instructions for doing the manual operations necessary to obtain the desired test results. The system will accommodate the use of optical bench facilities which are partly motorized and partly manual.

Paper Details

Date Published: 14 May 1984
PDF: 1 pages
Proc. SPIE 0467, Image Assessment: Infrared and Visible, (14 May 1984); doi: 10.1117/12.941595
Show Author Affiliations
T L Williams, Sira Ltd (England)
N T Davidson, Sira Ltd (England)

Published in SPIE Proceedings Vol. 0467:
Image Assessment: Infrared and Visible
Thomas L. Williams, Editor(s)

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