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Proceedings Paper

Tolerancing methodology for an IR optical telescope
Author(s): R. Lawrence Sinclair; Steve Tritchew; Paul Jennison
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Paper Abstract

With the advent of modern optical design programs featuring statistical tolerancing capabilities, the task of tolerancing multi-element optical systems has been simplified. However, the requirement for innovation still remains to ensure that the impact of all relevant environmental effects, not normally accounted for by the computer design program, is established. In this paper, a tolerancing methodology for an IR optical telescope is presented which combines the computer generated optical tolerances with the anticipated environmental perturbations by employing sensor defocus as the principle optical figure of merit. Included with the analysis is the apportionment of the optical tolerance budget to the individual opto-mechanical components and a discussion of the optical test and metrology program employed to systematically verify the as built telescope performance. Finally, a comparison is presented of the predicted versus as built optical performance.

Paper Details

Date Published: 1 October 1990
PDF: 12 pages
Proc. SPIE 1309, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing, (1 October 1990); doi: 10.1117/12.21775
Show Author Affiliations
R. Lawrence Sinclair, Spar Aerospace Ltd. (Canada)
Steve Tritchew, Spar Aerospace Ltd. (Canada)
Paul Jennison, Spar Aerospace Ltd. (Canada)


Published in SPIE Proceedings Vol. 1309:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing

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