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Optical Engineering

Alignment of a three-mirror off-axis telescope by reverse optimization
Author(s): Mark A. Lundgren; William L. Wolfe
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Paper Abstract

A three-mirror off-axis telescope was aligned by ray aberration measurement and reverse optimization, which is the technique of creating a computer model of the telescope in its misaligned state. A set of Hartmann measurements were made at multiple field points and multiple focus planes. The Hartmann data were then used as targets for the ACCOS V lens design code that created via least squares optimization a misaligned model of the telescope to match the measurements. The physical telescope components were then moved opposite the misalignments of the model. The Hartmann pattern was generated using a five-hole Hartmann screen and measured by the use of a position-sensing, lateral-effect photodiode. Our results show this method is a viable tool for assisting in the alignment of optical systems.

Paper Details

Date Published: 1 March 1991
PDF: 5 pages
Opt. Eng. 30(3) doi: 10.1117/12.55794
Published in: Optical Engineering Volume 30, Issue 3
Show Author Affiliations
Mark A. Lundgren
William L. Wolfe, Univ. of Arizona (United States)

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