Design on Open-Loop Liquid Crystal Adaptive Optical System for 1200mm Telescope

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Design on Open-Loop Liquid Crystal Adaptive Optical System for 1200mm Telescope

Article | 更新时间：2020-08-12

- Design on Open-Loop Liquid Crystal Adaptive Optical System for 1200mm Telescope
- Optics and Precision Engineering Vol. 18, Issue 1, Pages: 109-117(2010)
- 作者机构：
  
  长春光学精密机械与物理研究所2. 吉林省长春市经济技术开发区东南湖大路16# 长春光机所应光室液晶光学组3. 长春光机与物理所
- 作者简介：
- 基金信息：
- DOI：
  CLC： TH754
- Received：03 December 2008，
  
  Revised：23 January 2009，
  
  Published Online：22 January 2010，
  
  Published：22 January 2010
- 稿件说明：
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陈浩,宣丽,胡立发,曹召良,穆全全. 1200mm望远镜开环液晶自适应光学系统设计[J]. 光学精密工程, 2010,18(1): 109-117

. Design on Open-Loop Liquid Crystal Adaptive Optical System for 1200mm Telescope[J]. 光学精密工程, 2010,18(1): 109-117
陈浩,宣丽,胡立发,曹召良,穆全全. 1200mm望远镜开环液晶自适应光学系统设计[J]. 光学精密工程, 2010,18(1): 109-117 DOI：

. Design on Open-Loop Liquid Crystal Adaptive Optical System for 1200mm Telescope[J]. 光学精密工程, 2010,18(1): 109-117 DOI：

摘要

在利用地基大口径光学望远镜进行天文观测时，液晶自适应光学成像技术已经被广泛地应用于校正大气湍流所引起的波前像差，为验证该技术的有效性，并最大限度地提高光学系统的能量利用率，现应用Zemax软件，设计出了与1200mm望远镜匹配的开环液晶自适应光学系统，并对该光学系统的成像性能进行了评价。所设计自适应光学系统的MTF曲线接近衍射极限，光学传递函数的模在50 lp/mm时可以达到0.4，而成像CCD的极限分辨率为31 lp/mm，充分地利用了CCD相机的分辨资源。该自适应光学系统与1200mm望远镜对接匹配后的组合焦距为19.9m，F数为16，P-V值为0.0314。

Abstract

In astronomical observation and space object detection

larger-aperture telescopes are used widely.Liquid crystal adaptive optics imaging technology has been used in correction of the aberration caused by atmospheric turbulence.In order to verify the validity of the technology and maximize energy utilization，Zemax is used to design the liquid crystal adaptive optical system

and the characteristic of the system is evaluated.Obtained modulation transfer function(MTF) of the liquid crystal adaptive optical system is almost the same as the diffraction limited.MTF 0.4@50 lp/mm.The limited resolution of the CCD is 31 lp/mm

we could see that the resources of CCD has been used effectively.The focal length of the whole optical system is 19.9m and the F number is 16.The peak-valve(PV) value is 0.0314.

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