中国物理B ›› 2013, Vol. 22 ›› Issue (7): 74212-074212.doi: 10.1088/1674-1056/22/7/074212

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Sphere-cone-polynomial special window with good aberration characteristic

王超a b, 张新a, 曲贺盟a, 王灵杰a, 王钰a b   

  1. a Key Laboratory of Optical System Advanced Manufacturing Technology, Changchun Institute of Optics, Fine Mechanics and Physics,Chinese Academy of Sciences, Changchun 130033, China;
    b University of Chinese Academy of Sciences, Beijing 100039, China
  • 收稿日期:2012-12-20 修回日期:2013-01-15 出版日期:2013-06-01 发布日期:2013-06-01
  • 基金资助:
    Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 61007009).

Sphere-cone-polynomial special window with good aberration characteristic

Wang Chao (王超)a b, Zhang Xin (张新)a, Qu He-meng (曲贺盟)a, Wang Ling-jie (王灵杰)a, Wang Yu (王钰)a b   

  1. a Key Laboratory of Optical System Advanced Manufacturing Technology, Changchun Institute of Optics, Fine Mechanics and Physics,Chinese Academy of Sciences, Changchun 130033, China;
    b University of Chinese Academy of Sciences, Beijing 100039, China
  • Received:2012-12-20 Revised:2013-01-15 Online:2013-06-01 Published:2013-06-01
  • Contact: Wang Chao E-mail:Nicklo19992009@163.com
  • Supported by:
    Project supported by the Young Scientists Fund of the National Natural Science Foundation of China (Grant No. 61007009).

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摘要： Optical windows with external surfaces shaped to satisfy operational environment needs are known as special windows. A novel special window, sphere-cone-polynomial (SCP) window, is proposed. The formulas of this window shape are given. An SCP MgF2 window with a fineness ratio of 1.33 is designed as an example. The field-of-regard (FOR) angle is ±75°. From the window system simulation results obtained with the calculated fluid dynamics (CFD) and optical design software, we find that compared to the conventional window forms, the SCP shape can not only introduce relatively less drag in the airflow, but also have the minimal effect on imaging. So the SCP window optical system can achieve a high image quality across a super wide FOR without adding extra aberration correctors. The tolerance analysis results show that the optical performance can be maintained with a reasonable fabricating tolerance to manufacturing errors.

关键词: special optical window, sphere-cone-polynomial surface, aberration characteristic

Abstract: Optical windows with external surfaces shaped to satisfy operational environment needs are known as special windows. A novel special window, sphere-cone-polynomial (SCP) window, is proposed. The formulas of this window shape are given. An SCP MgF2 window with a fineness ratio of 1.33 is designed as an example. The field-of-regard (FOR) angle is ±75°. From the window system simulation results obtained with the calculated fluid dynamics (CFD) and optical design software, we find that compared to the conventional window forms, the SCP shape can not only introduce relatively less drag in the airflow, but also have the minimal effect on imaging. So the SCP window optical system can achieve a high image quality across a super wide FOR without adding extra aberration correctors. The tolerance analysis results show that the optical performance can be maintained with a reasonable fabricating tolerance to manufacturing errors.

Key words: special optical window, sphere-cone-polynomial surface, aberration characteristic

中图分类号:  (Optical elements, devices, and systems)

  • 42.79.-e
42.15.Eq (Optical system design) 42.15.Fr (Aberrations)