补充一张RC镜片结构图与其他结构图作为参考
skyczheng 发表于 2010-10-3 17:40
补充一下,以下内容选自维基百科:
http://en.wikipedia.org/wiki/Hubble_Space_Telescope#Optical_Telescope_Assembly_.28OTA.29
Optically, the HST is a Cassegrain reflector of Ritchey-Chrétien design, as are most large professional telescopes. This design, with two hyperbolic mirrors, is known for good imaging performance over a wide field of view, with the disadvantage that the mirrors have shapes that are hard to fabricate and test.
光学上,哈勃空间望远镜是一个RC式的卡塞格林望远镜,是大的专业望远镜之一。这种设计,有两个双曲面的反射镜,被认为在大视场拍摄中有极佳的表现,但同时镜面的形状在加工和测试中也比较困难。 |