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Proceedings Paper

Auto-Alignment Of A Three-Mirror Off-Axis Telescope By Reverse Optimization And End-To-End Aberration Measurements
Author(s): Hwan Joo Jeong; George N. Lawrence; Kie B. Nahm
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Paper Abstract

Numerical analysis and simulation of a technique for automatic alignment of a three-mirror off-axis telescope were carried out using a method of reverse optimization and end-to-end measurements. The techniques uses Hartmann measurements made at multiple field points and multiple focus planes. The reverse optimization method uses the Hartmann data as target values in a standard lens design program and damped least squares optimization to determine the state of misalignment of the system. Once the state of misalignment is determined a single step correction of all misalignments is possible in principle. Our results show that multiple measuring planes make possible a larger capture range, faster convergence, and larger measurement tolerances than does a single measurement plane.

Paper Details

Date Published: 1 January 1987
PDF: 12 pages
Proc. SPIE 0818, Current Developments in Optical Engineering II, (1 January 1987); doi: 10.1117/12.978915
Show Author Affiliations
Hwan Joo Jeong, University of Arizona (United States)
George N. Lawrence, University of Arizona (United States)
Kie B. Nahm, University of Arizona (United States)

Published in SPIE Proceedings Vol. 0818:
Current Developments in Optical Engineering II
Robert E. Fischer; Warren J. Smith, Editor(s)

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