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Optical Engineering

Response Of Long Focal Length Optical Systems To Thermal Shock
Author(s): Joseph M. Geary
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Paper Abstract

Aerial reconnaissance optical systems are often subjected to extremes in thermal environment. Designers have been able to engineer systems which maintain stable performance over a wide range of steady-state temperatures. But how long does it take a reconnaissance system to reach steady state after being subjected to a thermal shock (or step function)? This paper reports on experimental measurements made on several long focal length reconnaissance lenses exposed to thermal step functions. The most significant finding showed that the thermal recovery time is on the order of hours .... a period during which the reconnaissance mission may already have been completed.

Paper Details

Date Published: 1 April 1980
PDF: 7 pages
Opt. Eng. 19(2) 192233 doi: 10.1117/12.7972499
Published in: Optical Engineering Volume 19, Issue 2
Show Author Affiliations
Joseph M. Geary, Air Force Weapons Laboratory (United States)

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