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A method for associating spots in a Shack-Hartmann wavefront sensor with a hexagonal lenslet array

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Abstract

Historically, the spots produced by a Shack-Hartmann wavefront sensor are expected to stay in a region immediately behind their respective lenslets. Valuable sensitivity and dynamic range can be recovered if the spots are allowed to wander. A new algorithm is presented for resolving this issue for a hex-packed lenslet geometry.

© 2003 Optical Society of America

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