棱镜在望远镜的光学设计是无可避免的,如果不是为了能够看着正立而不是倒立或者平躺着的图像,不是我们与生俱来习惯于观察正立着的景物的话,双筒望远镜和单筒观景望远镜中根本就不需要棱镜。1棱镜的形式现在主流的望远镜棱镜系统都采用两种基本设计:屋脊(Roof)棱镜或保罗(Porro,又译普罗,宝罗)棱镜。保罗棱镜又 The optical design of the prism in the telescope is inevitable. If it is not to be able to look at an image that is upright, not upside down or lying flat, not what we are born with to see the standing erection, binoculars and Monocular telescope does not need prism. 1 prism form Now the mainstream telescope prism system are used in two basic designs: Roof prism or Paul (Porro, also translated Piro, Barolo) prism. Paul prism again