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Proceedings Paper

Impact of decentered optical components on the MTF change of space instrumentation
Author(s): Dominique Sauvage
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Paper Abstract

To evaluate the MTF performance of optical systems, the TOR option of the CODEV software from Optical Research Associates Inc. (ORA) is used for assessing MTF changes due to such tolerance aspects as decenters and tilts. In this evaluation, CODEV assumes internal coupling of the tolerances and a Rayleigh function for this tolerances' probability distribution, which assumption is well suited to serial modes. However, where one or more models are manufactured on a one-off basis, e.g. models of space instruments, this probability distribution is not realistic, in view of the independent nature and Gaussian distribution of the decenter generated on space instruments. To study this case and present the first results, AEROSPATIALE uses a new feature of the TOR option, which allows the user to modify the probability density functions.

Paper Details

Date Published: 19 August 1996
PDF: 10 pages
Proc. SPIE 2775, Specification, Production, and Testing of Optical Components and Systems, (19 August 1996); doi: 10.1117/12.246775
Show Author Affiliations
Dominique Sauvage, Aerospatiale Satellites Operational Ctr. (France)

Published in SPIE Proceedings Vol. 2775:
Specification, Production, and Testing of Optical Components and Systems
Anthony E. Gee; Jean-Francois Houee, Editor(s)

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