Characterization of alignment using measurements of the sine condition

Matthew Dubin; Sara Lampen; James H. Burge

doi:10.1117/12.895239

12 September 2011 Characterization of alignment using measurements of the sine condition

Matthew Dubin, Sara Lampen, James H. Burge

Proceedings Volume 8131, Optical System Alignment, Tolerancing, and Verification V; 813107 (2011) https://doi.org/10.1117/12.895239
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

An experimental test for violations of the sine condition is presented. This test is particularly useful for identifying the state of alignment of an imaging system because it provides a direct measurement of the linear astigmatism (astigmatism that varies linearly with field) in a system using only on axis measurements. The concept of the test is explained from the perspective of both geometrical optics, using the sine condition, and wave optics. In addition, the results of an experimental proof of concept are presented. This experiment shows good agreement between the measured and predicted results.

Citation Download Citation

Matthew Dubin, Sara Lampen, and James H. Burge "Characterization of alignment using measurements of the sine condition", Proc. SPIE 8131, Optical System Alignment, Tolerancing, and Verification V, 813107 (12 September 2011); https://doi.org/10.1117/12.895239

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