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Glossary term: 反射式望远镜

Description: 在反射式望远镜(或称镜面望远镜)中,主要的光学元件是一面反射镜,即“主镜”,它的作用是收集入射光。反射式望远镜通常以主镜直径为特征参数,从较小的业余望远镜的10厘米到专业望远镜中使用的最大实体镜的 8 米不等。将多个反射镜组合在一起,可以获得更大的集光面积,其作用相当于较大的实体镜。反射式望远镜有多种类型。例如,在牛顿式望远镜中,来自主镜的光线被一个较小的平面镜侧向反射到目镜或照相机中。在卡塞格林式望远镜中,较小的凸面副镜通过主镜上的开口将光线反射回去。

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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".

Related Media


俯视视角的两台凯克望远镜。穹顶是打开的,可以看到里面的望远镜镜面。

凯克望远镜

Caption: 夏威夷岛莫纳克亚山上的两台凯克望远镜。这两台望远镜是反射望远镜,主镜直径为 10 米。
Credit: 美国宇航局/JPL credit link

License: PD Public Domain icons


一架望远镜指向天空,银河横亘其中,呈现出深浅相间的斑驳光斑。

了解夜空

Caption: 在哥伦比亚塔塔科阿沙漠广袤无垠的夜空下,一架天文望远镜对准了宏伟的银河核心,同时一部智能手机记录下了这次宇宙邂逅。这张照片拍摄于2023年6月9日的一次天文夏令营,象征着天体奇观的美丽与平易近人,它展示了夜空令人着迷的壮丽景色,吸引了普通的观星者和热情的天文学家。银河的壮丽通过移动设备优雅地捕捉下来,在精密设备与纯粹、深邃的观星乐趣之间架起了一座无缝的桥梁。
Credit: Juan Pablo Botero Londoño/IAU OAE (CC BY 4.0)

License: CC-BY-4.0 Creative Commons 署名 4.0 国际 (CC BY 4.0) icons