A Golay3 sparse aperture optical system of primary mirror with free-form surface


To image distant and dim objects, this paper designs a sparse aperture optical system with a small F number and a large filling factor. The design process is divided into three steps. To start with, the curvature radius and spacing of the primary and secondary mirrors are calculated under the guidance of the paraxial imaging theory. Then, based on the primary aberration theory, the conic coefficients of the primary and secondary mirrors are also calculated. Finally, the node aberration theory is used to increase the field of view and eliminate the residual aberrations. Through theoretical derivation and computer-aided methods, a Golay3 sparse aperture optical system with primary mirror used Zernike polynomial is designed. The full field of view is 0.3° and the F number is 5.

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National Science Foundation of China (NSFC) (61875145,11804243); Jiangsu Province Key Discipline of China’s 13th five-year plan (20168765); Jiangsu Key Laboratory of Advanced Optical Manufacture Technology (KJS1710); Suzhou Key Laboratory (SZS201611, SZS201712); and the Six Talent Peaks Project of the Jiangsu Province (DZXX-026).

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Correspondence to Quanying Wu.

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Chen, B., Wu, Q. & Fan, J. A Golay3 sparse aperture optical system of primary mirror with free-form surface. Opt Rev 28, 113–118 (2021). https://doi.org/10.1007/s10043-021-00641-z

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  • Sparse aperture
  • Aberration theory
  • Zernike polynomial
  • Dim objects