Effects of optical element errors on birefringent filter

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Effects of optical element errors on birefringent filter

Article | 更新时间：2020-08-12

- Effects of optical element errors on birefringent filter
- Optics and Precision Engineering Vol. 18, Issue 1, Pages: 52-59(2010)
- 作者机构：
  
  中国科学院国家天文台
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：08 April 2009，
  
  Revised：11 June 2009，
  
  Published Online：22 January 2010，
  
  Published：22 January 2010
- 稿件说明：
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玄伟佳,王东光,邓元勇,张志勇,孙英姿. 双折射滤光器的误差分析与性能优化[J]. 光学精密工程, 2010,18(1):52-59

Effects of optical element errors on birefringent filter[J]. Optics and precision engineering, 2010, 18(1): 52-59.
玄伟佳,王东光,邓元勇,张志勇,孙英姿. 双折射滤光器的误差分析与性能优化[J]. 光学精密工程, 2010,18(1):52-59 DOI：

Effects of optical element errors on birefringent filter[J]. Optics and precision engineering, 2010, 18(1): 52-59. DOI：

摘要

目的：对于双折射滤光器型太阳磁场望远镜，滤光器的研制质量直接影响透过带，进而影响太阳磁场的测量。当光线倾斜入射或者偏振光学元件存在误差时，双折射滤光器的透过带将发生漂移、形状将发生变化，分析误差项对滤光器性能的影响、有效减小误差，可以提高研制质量。方法：应用光线追迹方法，通过计算机编程，完全模拟光线轨迹，精确分析了多种误差项对双折射滤光器透过带的影响。结果：给出了引起透过带漂移、展宽、极大值和极小值变化的主要误差项，为滤光器的研制提供了可靠依据。

Abstract

Objective: For solar magnetic field telescope with birefringent filter

the quality of filter directly affects the transmission band

and then the measurement of solar magnetic field. The transmission band will shift and its outline will change when the incident ray is oblique or the optical elements are not ideal. The quality of filter can be improved by reducing the errors effectively after analyzing the effects of error terms on the birefringent filter. Method: Based on the ray tracing method

the trace of the ray can be simulated completely by using computer program. Ultimately the variation of transmission band with different errors can be obtained accurately. Result: The primary error terms were given which cause the band shift

the band broadening

and the changes of maximum and minimum. This paper provides a reference on the development of birefringent filter.

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