[1] Schmidt B. Mitt. Hamburg. Sternwart [Z],1932,7(36).

[2] Schulte D. Auxiliary optical system for the kitt peak telescopes [J].Appl. Opt.,1963,2(2): 141.

[3] Baker J. A family of flat-Field camera,equivalent in performance to the schmidt camera [J].Proc. Amer. Phil.Soc.,1940,82(3): 339.

[4] Sonnefeld A. Photographic objective [P].U.S. Patent,1938,2,141,884.

[5] Rao D. Design of a near diffraction-limited catadioptric lens [C]// SPIE,1987,766: 220.

[6] Shenker M. High speed catadioptric objective in which three corrector elements define two power balanced air lenses [P].U.S. Patent,1966,3,252,373.