Design of telecentric off-axis three-mirror system of imaging spectrometer with wide field-of-view

被引：0
|
作者：
Liu X. [1 ,2 ]
Xiang Y. [1 ]
机构：
[1] State Key Laboratory of Applied Optics, Changchun Institute of Optics, Chinese Academy of Sciences, Changchun
[2] Graduate University of Chinese Academy of Sciences
来源：
Guangxue Xuebao/Acta Optica Sinica | 2011年 / 31卷 / 06期
关键词：
Imaging spectrometer; Off-axis three-mirror system; Optical design; Telecentric; Wide field of view;
D O I：
10.3788/AOS201131.0622004
中图分类号：
学科分类号：
摘要：
In order to meet the needs of the wide field-of-view (FOV) imaging spectrometer development, the problem about optical design of telecentric, wide FOV, large relative aperture, off-axis three-mirror system is studied, and the expressions of initial configuration parameters and the third-order aberrations for flat field, telecentric, three|mirror system are educed. With the specific requirements of 0.4~2.5μm spectral range, F number is 4, 720 mm focal length, 10° FOV, a flat field, telecentric, off-axis three-mirror imaging system is designed, in which the secondary mirror is convex spheric mirror, the primary mirror and the third mirror are concave conicoid and coplanar, and all the three mirrors are coaxial. The design result indicates that the imaging quality of the designed system approaches the diffraction limit at full FOV in the required wave band.
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