Abbreviated Journal Title
Opt. Express
Keywords
Optics
Abstract
Even after good calibration, the measurement accuracy of a Shack-Hartmann sensor can be affected by the fabrication and alignment tolerances of the wavefront sensing optical system. The shifts of the Shack-Hartmann spots caused by misalignments correspond to ray intercept errors on the detector that typically have to be converted into a meaningful input wavefront measurement error. This conversion cannot be directly obtained from a conventional tolerance analysis using optical design software, because of the intrinsic wavefront sampling by the lenslet array. The tolerancing method proposed in this paper solves the problem of converting conventional merit function degradation into input wavefront measurement error without employing a separate wavefront reconstruction algorithm. Using the proposed method, this investigation shows the effect of fabrication and misalignment errors on the accuracy of a calibrated Shack-Hartmann sensor, as a function of input wavefront vergence.
Journal Title
Optics Express
Volume
14
Issue/Number
1
Publication Date
1-1-2006
Document Type
Article
Language
English
First Page
138
Last Page
147
WOS Identifier
ISSN
1094-4087
Recommended Citation
Curatu, Costin; Curatu, George; and Rolland, Jannick, "Tolerance analysis method for Shack-Hartmann sensors using a variable phase surface" (2006). Faculty Bibliography 2000s. 4682.
https://stars.library.ucf.edu/facultybib2000/4682
Comments
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