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Proceedings Paper

Calculations Of The Optical Blurring In Infrared Optical Systems
Author(s): Xu Yao-zhou
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Paper Abstract

For infrared optical systems a point spread function pt (or Pd ) is calculated in terms of the spot diagram obtained through geometrical ray trace (or the theory of Kirchhoff diffraction). Also is calculated the ratio T of the energy passing through the system onto the exit window, to the total energy radiated from a plane target into the entrance pupil. Formulas are derived separately for the following different cases: a circular or rectangular ring diffraction pupil, a blur of equivalent intensity distribution or a Gaussian blur, and a circular or rectangular field stop.

Paper Details

Date Published: 3 May 1988
PDF: 7 pages
Proc. SPIE 0890, Infrared Systems and Components II, (3 May 1988); doi: 10.1117/12.944277
Show Author Affiliations
Xu Yao-zhou, Shanghai Institute of Building Materials (China)

Published in SPIE Proceedings Vol. 0890:
Infrared Systems and Components II
H.M. Charles Liaw, Editor(s)

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