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Proceedings Paper

Measurement of modulation transfer function in image tubes: effects of spurious background brightness
Author(s): William E. Flynt
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Paper Abstract

There are subtle effects on the MTF of any optical device when 'stray light' is present along with the test pattern (usually a slit). Reported here are observations on image intensifiers, using the Ealing Solid-State MTF analyzer, which allows more detailed readout than with some prior systems. The shape of the MTF curve at low space-frequencies can yield clues about the effects of stray light.

Paper Details

Date Published: 15 November 1993
PDF: 5 pages
Proc. SPIE 1952, Surveillance Technologies and Imaging Components, (15 November 1993); doi: 10.1117/12.161405
Show Author Affiliations
William E. Flynt, Varo/Nitec (United States)

Published in SPIE Proceedings Vol. 1952:
Surveillance Technologies and Imaging Components
Sankaran Gowrinathan; C. Bruce Johnson; James F. Shanley, Editor(s)

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