我国首次出口的三台双折射滤光器  

Three Birefringent Filters Exported to Japan

作　　者：李挺[1] 

机构地区：[1]中国科学院南京天文仪器厂

出　　处：《天文学进展》1992年第1期72-74,共3页Progress In Astronomy

摘　　要：1991年中国南京天文仪器厂和北京天文台合作首次出口了三台双折射滤光器,表1示出其基本性能参数。对于作为出口的高技术商品的三台滤光器,在研制中除保证其基本性能满足天文应用外,着重考虑机械结构的优化和恒温电控的绝对可靠,因而在设计和工艺上采取了若干特殊措施,保证了仪器内在和外表的高质量(照片1)。 1991年7月,日本国立天文台利用Hida天文台60cm无圆顶太阳望远镜的10m水平摄谱仪对前两台滤光器的性能进行检测。摄谱仪使用154mm×206mm,600g/mm的衍射光栅。In 1989, The National Astronomical Observatory (NAOJ) and Nikon Corporation of Japan have ordered three birefringent filters from Nanjing Astronomical Instrument Factory.Besides, NAOJ ordered two wide field KD*Ps of NaD line for its magnetooptical filter.NAIF has delivered above-mentioned filters in time according to the orders given by NAOJ and Nikon.In July of 1991, 0.125 A and 0.2 A birefringent filters were tested in Japan by the horizontal spectrograph of 60cm Domeless Solar Telescope of Hida Observatory. The testing results show that two filters meet the specification given by NAOJ with satisfactory function. These two filters have been mounted on a four-tube Solar Flare Telescope of NAOJ in Mitaka of Tokyo.The 0.5A H-Alpha filter has been normally worked with a 30cm vacuum reflective telescope in Katsushika Astronomical Museum of Tokyo,

关 键 词：双折射 滤光器 太阳望远镜 中国 

分 类 号：P111.2[天文地球—天文学]