Scanning Shack-Hartmann wavefront sensor

Vasyl V. Molebny

doi:10.1117/12.541755

13 September 2004 Scanning Shack-Hartmann wavefront sensor

Vasyl V. Molebny

Proceedings Volume 5412, Laser Radar Technology and Applications IX; (2004) https://doi.org/10.1117/12.541755
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

Criss-crossing of focal images is the cause of a narrow dynamic range in Shack-Hartmann sensors. Practically, aberration range wider than ±3 diopters can not be measured. A method has been proposed for ophthalmologic applications using a rarefied lenslet array through which a wave front is projected with the successive step-by-step changing of the global tilt. The data acquired in each step are accumulated and processed. In experimental setup, a doubled dynamic range was achieved with four steps of wave front tilting.

Citation Download Citation

Vasyl V. Molebny "Scanning Shack-Hartmann wavefront sensor", Proc. SPIE 5412, Laser Radar Technology and Applications IX, (13 September 2004); https://doi.org/10.1117/12.541755

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