| Summary: | 碩士 === 元智大學 === 電機工程學系 === 95 === The error simulation and experiment analysis of Hartmann Shack wavefront sensor
Student：Ting Ju Chen Advisor：Dr. Chung Ping Liu
Institute of Electrical Engineering
Yuan Ze University
ABSTRACT
Hartmann Shack wavefront sensor is used in astronomy to measure the aberrations and correct them to get the clear image. Recently, it is widely used in ophthalmology field, like the LASIK surgery. The precision must be kept to eliminate the surgery error.
In this article, there are two parts to estimate the reconstructed error of Hartmann Shack wavefront sensor. In the first part, the optical simulation is used to produce the spot distribution, then reconstruct the incident wavefront by suitable algorithm. The tolerance analysis is also done to analyze the tolerance of optical component in experiment setup.
In the second part, the test lens and reflective mirror are used to simulate the human eye in the experiment setup. Light is reflected from the mirror, passed through the test lens and micro-lens array, and finally focused on CCD. The comparison of ZYGO interferometer measurement result and HS reconstruction result is shown in the article. The RMS error is 0.02λ.
|
|---|
