Auto-Alignment Of A Three-Mirror Off-Axis Telescope By Reverse Optimization And End-To-End Aberration Measurements

Hwan Joo Jeong; George N. Lawrence; Kie B. Nahm

doi:10.1117/12.978915

1 January 1987 Auto-Alignment Of A Three-Mirror Off-Axis Telescope By Reverse Optimization And End-To-End Aberration Measurements

Hwan Joo Jeong, George N. Lawrence, Kie B. Nahm

Author Affiliations +

Proceedings Volume 0818, Current Developments in Optical Engineering II; (1987) https://doi.org/10.1117/12.978915
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

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.

Citation Download Citation

Hwan Joo Jeong, George N. Lawrence, and Kie B. Nahm "Auto-Alignment Of A Three-Mirror Off-Axis Telescope By Reverse Optimization And End-To-End Aberration Measurements", Proc. SPIE 0818, Current Developments in Optical Engineering II, (1 January 1987); https://doi.org/10.1117/12.978915

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