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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 19 — Sep. 14, 2009
  • pp: 16809–16819

Optimization of an off-axis three-mirror anastigmatic system with wavefront coding technology based on MTF invariance

Feng Yan and Xuejun Zhang  »View Author Affiliations

Optics Express, Vol. 17, Issue 19, pp. 16809-16819 (2009)

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In this paper the invariance of modulation transfer function (MTF), which describes the insensitivity to perturbation of MTF, is defined to be the evaluating criterion of the wavefront coding system. The rapid optimization of wavefront coding system based on the MTF invariance is proposed by means of introducing the mathematical program Matlab to normal optical design process. The interface called MZDDE between Matlab and Zemax is applied to realize the fast data exchanging and merit function calculating. The genetic algorithm tool (GA) in Matlab is introduced to the optimizing process, which accelerates the converging efficiency considerably. The MTF invariance of optimized system drops to 0.0119 while that of original system is larger than 0.018. If the all the fields of view is taken into consideration, the MTF invariance of optimized system and original system is less than 0.015 and larger than 0.020 respectively. It is proven that the optimization of the unusual optical system with special property can be executed conveniently and rapidly with the help of external program and dynamic data exchange.

© 2009 OSA

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(110.4100) Imaging systems : Modulation transfer function
(220.0220) Optical design and fabrication : Optical design and fabrication
(220.1250) Optical design and fabrication : Aspherics

ToC Category:
Imaging Systems

Original Manuscript: July 17, 2009
Revised Manuscript: August 24, 2009
Manuscript Accepted: August 25, 2009
Published: September 4, 2009

Feng Yan and Xuejun Zhang, "Optimization of an off-axis three-mirror anastigmatic system with wavefront coding technology based on MTF invariance," Opt. Express 17, 16809-16819 (2009)

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