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Proceedings Paper

The Identification Of Common Production Errors In Thermal Imaging Lenses
Author(s): D. R. J. Campbell
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Paper Abstract

The failure of IR systems to attain their design performance is usually attributed to four basic errors, namely decentration or tilt, form error, materials defects and transmission or coating defects. Until fairly recently it was difficult to determine what error or combination of errors was contributing to an unacceptable drop in performance of a system. The introduction of a semi-automatic high precision scanning far infrared interferometer has allowed the complete diagnosis of system defects, along with an accurate measure of any error and its effect on system performance in terms of wavefront error, MTF, etc. Results on a variety of systems which exhibit the above errors will be presented and their root cause and subsequent cure will be discussed. The value of such an instrument for both prototype building and production runs will be described.

Paper Details

Date Published: 22 September 1983
PDF: 7 pages
Proc. SPIE 0416, Applications of Optical Metrology: Techniques and Measurements II, (22 September 1983); doi: 10.1117/12.935922
Show Author Affiliations
D. R. J. Campbell, Pilkington P. E. Limited (U . K .)

Published in SPIE Proceedings Vol. 0416:
Applications of Optical Metrology: Techniques and Measurements II
Jar Jueh Lee, Editor(s)

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