Misalignment effects of the Shack–Hartmann sensor
1998; Optica Publishing Group; Volume: 37; Issue: 1 Linguagem: Inglês
10.1364/ao.37.000022
ISSN0003-6935
AutoresJohannes Pfund, Norbert Lindlein, Johannes Schwider,
Tópico(s)Advanced Optical Sensing Technologies
ResumoThe Shack–Hartmann sensor uses a microlens array and a CCD camera for wave-front measurements. To obtain wave-front measurements with high accuracy, an accurate relative alignment of both is essential. The different states of misalignment of the Shack–Hartmann sensor are divided into groups and are treated theoretically and experimentally. Their effect on the accuracy of wave-front measurements is evaluated. In addition, a practical method for proper alignment of the Shack–Hartmann sensor is proposed.
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