Acta Optica Sinica, Volume. 18, Issue 2, 238(1998)
Optical Design of Cassagrain System with Three Aspherical Surface
The design idea for Cassagrain system with three aspherical surfaces is presented. A design result for focal lenth of 2.8 m, F/5.6, field of view 3.2°, is obtained. The primary and secondary mirror have six order terms aspherical surfaces and the field lens has four oder terms aspherical surface. The image quality is close to the diffraction limit and the distortion is also corrected.
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[in Chinese]. Optical Design of Cassagrain System with Three Aspherical Surface[J]. Acta Optica Sinica, 1998, 18(2): 238
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