Parameter Calibration of Hartmann-Shack Wavefront Sensor Based on Mode-Construction Algorithm

摘要：

The principle of Hartmann-Shack wavefront sensor decided that the distance between micro-lens array and the CCD is the essence of reconstruction algorithm. Because of lacking way to measure the parameter and the existing of assembly error, it will obviously cause error by using the micro-lens focus instead of actual parameter. After analyzing the Zemike polynomial for describing wavrfront aberration, a new Self-reference method is given in this paper to calibrate the parameter. The method is based on the truth that the primary aberration of point light source is defocusing amount. Through this way, the requirement of sensor assembly-precision is reduced, and the detection accuracy of Hartmann-Shack sensor is also improved in the meanwhile. Satisfying results has been achieved under the normal experimental condition using the method given in this paper.

关键词： Adaptive optics Hartmann-Shack wavefront sensor Mode-construction algorithm

作者: C.Liang W.H.Liao J.X.Sheng

作者单位: College of Mechanical & Electrical Engineering,Nanjing University of Aeronautics & Astronautics,Nanjing 210016,China

会议类型: 国际会议

会议名称: The 3rd Conference of Cross-Strait Engineering Education and Ceeusro & 1st International Conference on Engineering Technologies and Ceeusro(ICETC2009)(第三届工程技术与产学研研讨会暨第一届国际功能制造技术学术会议)

会议地点: 常州

会议语种:英文

页码: 638-642

在线出版日期: 2009-11-19（万方平台首次上网日期，不代表论文的发表时间）