Impact of decentered optical components on the MTF change of space instrumentation

Dominique Sauvage

doi:10.1117/12.246775

19 August 1996 Impact of decentered optical components on the MTF change of space instrumentation

Dominique Sauvage

Proceedings Volume 2775, Specification, Production, and Testing of Optical Components and Systems; (1996) https://doi.org/10.1117/12.246775
Event: Optical Instrumentation and Systems Design, 1996, Glasgow, United Kingdom

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.

Citation Download Citation

Dominique Sauvage "Impact of decentered optical components on the MTF change of space instrumentation", Proc. SPIE 2775, Specification, Production, and Testing of Optical Components and Systems, (19 August 1996); https://doi.org/10.1117/12.246775

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