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Proceedings Paper

Comparison Of Polychromatic And Monochromatic Lens Assessment In The Far Infrared
Author(s): Nigel D. Haig; Colin Lewis; Richard H. Runalls
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Paper Abstract

Techniques designed for assessing the performance of lenses operating in the 8-13 micron band are described. These include interferometry and pupil scanning, both using monochromatic radiation from a CO2 laser source. In addition a nominally polychromatic line spread function apparatus is shown. Results are presented of MTF using these techniques, along with those from a commercially available polychromatic grating scanning instrument. Measurements have been made on standard audit and operational lenses. Comparisons are made and differences attributable to radiation source emphasised.

Paper Details

Date Published: 12 October 1977
PDF: 6 pages
Proc. SPIE 0098, Assessment of Imaging Systems I, (12 October 1977); doi: 10.1117/12.955283
Show Author Affiliations
Nigel D. Haig, Royal Armament Research and Development Establishment (U. K.)
Colin Lewis, Royal Armament Research and Development Establishment (U. K.)
Richard H. Runalls, Royal Armament Research and Development Establishment (U. K.)

Published in SPIE Proceedings Vol. 0098:
Assessment of Imaging Systems I
Thomas L. Williams, Editor(s)

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