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http://dx.doi.org/10.3807/KJOP.2017.28.6.263

Optical Design of a Wide-field Off-axis Two-mirror System without Ray Obstruction  

Oh, Hye-Jin (Department of Laser and Optical Information Engineering, Cheongju University)
Lee, Jong-Ung (Department of Laser and Optical Information Engineering, Cheongju University)
Publication Information
Korean Journal of Optics and Photonics / v.28, no.6, 2017 , pp. 263-272 More about this Journal
Abstract
To design a wide-field optical system, the inverted telephoto configuration, which has a negative front group and a positive rear group, is popular. For a two-mirror system, the inverse Cassegrain system has the inverted telephoto configuration, but the inverse Cassegrain system with the conventional, axially symmetric configuration shows severe field screening and ray obstruction. To avoid these problems, we put the aperture stop on the secondary mirror of an inverse Cassegrain system to increase field of view, and designed a wide-field off-axis two-mirror system which only uses the off-axis field, without ray obstruction.
Keywords
Optical system design; Telescope; Wide field of view;
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Times Cited By KSCI : 1  (Citation Analysis)
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