A Complete Collection of 100000 Whys
Fav十万个为什么
为什么潜望镜用三棱镜转折光路？
潜望镜用三棱镜转折光路主要是因为三棱镜能精确改变光的传播方向、减少光路长度、以及降低光学系统的复杂性。
1、三棱镜能精确改变光的传播方向。三棱镜通过两次折射，可以精确地将光线转折90度，从而将观察者的视线引向原本无法直接看到的物体。
2、减少光路长度。使用三棱镜转折光路可以缩短潜望镜的整体长度，这对于空间受限的潜艇等环境尤为重要。
3、降低光学系统的复杂性。相比于使用多个镜面反射，三棱镜转折光路可以简化光学系统，减少光学元件的数量，从而降低系统的复杂性和成本。
总结：潜望镜用三棱镜转折光路，是因为三棱镜能精确改变光的传播方向、减少光路长度以及降低光学系统的复杂性。
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