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Proceedings Paper

Optomechanical tolerancing by means of system modeling with affine transformations
Author(s): John A. Penkethman
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Paper Abstract

Most imaging optical systems require a fixed and stable relationship between the object and the image. Tilting and decentering of optical components due to manufacturing tolerances or thermal expansion will cause the image to move or tilt about the desired position. A method of modeling imaging optical systems is presented which uses affine transformations based on the paraxial optical equations. The method uses matrix and vector equations which are easily input, usually exactly as they are written, into many of today's math software programs for personal computers. Structural influence coefficients, or sensitivities, are derived for several common optical components. The resulting sensitivities can be computed and used in optomechanical tolerance budgeting. The equations can also be used as stabilization equations in actively controlled optical systems.

Paper Details

Date Published: 23 August 1996
PDF: 18 pages
Proc. SPIE 2774, Design and Engineering of Optical Systems, (23 August 1996); doi: 10.1117/12.246656
Show Author Affiliations
John A. Penkethman, Electroglas, Inc. (United States)


Published in SPIE Proceedings Vol. 2774:
Design and Engineering of Optical Systems
Joseph J. M. Braat, Editor(s)

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