摘要
望远镜在大气光学参数测量中起到至关重要的作用,测量方法是通过跟踪恒星或者信标实时测量数据。基于不同速度信标的移动特点,需要设计3m～6m变焦大气相干长度测量系统用于大气相干长度的测量,设计波段为可见光486nm～656nm,探测元全视场11mm,入瞳直径300mm。利用光学设计软件设计出一款折返式变焦望远系统,光学结构由卡式望远系统和三组元机械补偿式连续变焦系统组成,系统结构简单,成本低,凸轮曲线平滑,压力升角均小于45°。系统可对变焦焦距数据实时输出,适合于快速和慢速不同场合下实时进行大气参数测量。
Telescope is important to measure atmosphere optical parameters by tracking star or beaconing to measure data in real time.Based on the moving characteristics of beaconing at different speeds,design of a continuous zoom measurement system for atmospheric coherence length was required.The designed focal length of the system was 3 m～6 m,the wavelength was 486 μm～656 μm,the charge coupled device（CCD） size was 11mm and the entrance pupil diameter was 300mm.By using optical design software,a catadioptric zoom telescope system was designed which consisted of a Cassegrain telescope and three-component mechanically compensated zoom system.The optical zoom system has high quality,simple structure,low cost and smooth cam curve,and all the pressure rise angles are no more than 45°.It can output real-time zoom data of focus length and is suitable for measuring the atmosphere coherent length real-timely on the occasion of high and low speeds.
出处
《应用光学》
CAS
CSCD
北大核心
2012年第3期474-479,共6页
Journal of Applied Optics
作者简介
李广（1988-），男，安徽亳州人，硕士，主要从事光机设计工作。E-mail：liguang689@126.com
