SHI Guang-Wei, ZHANG Xin, ZHANG Jian-Ping, HE Feng-Bin, WANG Ling-Jie. Wavefront aberration characteristics of several misaligned reflective optical systems[J]. Infrared and Laser Engineering, 2012, 41(1): 160-166.
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SHI Guang-Wei, ZHANG Xin, ZHANG Jian-Ping, HE Feng-Bin, WANG Ling-Jie. Wavefront aberration characteristics of several misaligned reflective optical systems[J]. Infrared and Laser Engineering, 2012, 41(1): 160-166.
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Wavefront aberration characteristics of several misaligned reflective optical systems
- 1.
Key Laboratory of Optical System Advanced Manufacturing Technology,Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;
- 2.
Graduate University of the Chinese Academy of Sciences,Beijing 100049,China
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Abstract
In order to characterize wavefront aberration behavior of misaligned reflective optical systems over the entire image plane, thereby realize effective alignment to reflective optical systems, the third order coma and third order astigmatism of several reflective optical systems with tilt and decentration were studied. Firstly, the vector form of the third order wavefront aberration of misaligned optical system was deduced. Then, the distribution characteristics of third order coma and third order astigmatism of misaligned classical Cassegrain systems, Ritchey-Chrtien systems and three mirror astigmatism systems in the image plane were analyzed. Finally, the alignment of two mirror and three mirror optical systems was briefly discussed. Moreover, Zernike polynominals were used to fit wavefront aberrations of grid sampling points in the view of field. Third order coma and third order astigmatism were separated and displayed over the whole field of view. Theorectical analysis and practical fitting results were similar, which shows that conclusions are correct.
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