CAJ | 학술논문

主反射镜的口径大小与结构形式在极大程度上决定了空间望远镜的技术难度与经济成本。为了实现更高的空间分辨率与更强的信息收集能力，各国研制的空间望远镜主反射镜的口径朝着越来越大的趋势发展，从“哈勃空间望远镜”（ HST）的2.4 m，到“新世界观测者空间望远镜”（ NWO）的4 m，甚至到“先进技术大口径空间望远镜”（ ATLAST）的8 m，无不体现了对超大口径空间观测能力的追求。而单块式主镜凭借其支撑技术的可靠性与经济性，正成为超大口径空间望远镜的首选。通过对国外研制的超大口径空间望远镜的论述与分析，探讨了目前空间望远镜中超大口径主反射镜的关键技术与发展方向。针对目前国内运载能力与光学制造加工能力的极限，提出了建造基于3.5m口径主镜的空间望远镜设想。
주반사경적구경대소여결구형식재겁대정도상결정료공간망원경적기술난도여경제성본。위료실현경고적공간분변솔여경강적신식수집능력，각국연제적공간망원경주반사경적구경조착월래월대적추세발전，종“합발공간망원경”（ HST）적2.4 m，도“신세계관측자공간망원경”（ NWO）적4 m，심지도“선진기술대구경공간망원경”（ ATLAST）적8 m，무불체현료대초대구경공간관측능력적추구。이단괴식주경빙차기지탱기술적가고성여경제성，정성위초대구경공간망원경적수선。통과대국외연제적초대구경공간망원경적논술여분석，탐토료목전공간망원경중초대구경주반사경적관건기술여발전방향。침대목전국내운재능력여광학제조가공능력적겁한，제출료건조기우3.5m구경주경적공간망원경설상。
The aperture and structural configuration extremely determine the technical difficulty and economic cost of a spaceborne telescope .In order to realize higher spatial resolution and capacity of acquisition of infor-mation, the aperture of primary mirror of space telescope abroad is getting larger and larger .From the 2.4 m aperture of the Hubble Space Telescope (HST), to the 4 m aperture of the New World Observer (NWO), up until to the 8-m aperture of the Advanced Technology Large Aperture Space Telescope ( ATLAST) , all without exception embodies pursuing the high capacity of ultra-large aperture observation .Monolithic primary mirror is becoming the first choice of ultra-large aperture space telescope by right of its technical reliability and econom-ical efficiency .Through analysis and discussion on developing ultra-large aperture space telescopes abroad , the key techniques and trend of development of ultra-large aperture primary mirror are investigated .Then we proposed the assumption to build a 3.5 m aperture space telescope with a monolithic primary mirror based on the state-of-art capacity of lunching and optical fabrication in China .