潜望镜(Periscope),是一种利用光线反射原理所制作的光学仪器,最常被用在潜水艇用以在水下观察水面上的动静。曾在堑壕战中被用来从壕沟观察敌军动态。潜望镜并非只有军事用途,过往双层巴士亦有装置潜望镜,让坐在下层的司机可观察上层的情况,双层巴士的潜望镜至2000年代才逐渐由闭路电视取代[1]

Military handheld periscope optical design.
1 - Eyepiece
2 - Diagonal prism
3 - Handle
4 - 6 - Erecting lenses
5 - Periscope tube
7 - Field lens
8 - Lens
9 - Head diagonal prism
10 - Window
潜望镜示意图
Principle of the periscope.
A - Periscope using two plane mirrors.
B - Periscope using two right–angled prisms.
1 - 2 - Plane mirrors.
3 - 4 - Right–angled prisms.
5 - 6 - Observer eye.
7 - 8 - Periscope tube.
H - Periscope optical height.
Principle of the lens periscope.
A - Periscope using a single lens (L2) to correct image.
B - Periscope which uses two lenses (L2-L3) to correct image.
1-3 - Periscope window.
2-4 - Field stop or reticle.
P - Right–angled prisms (or plane mirrors).
L1 - Objective lens.
L2 - for A - L2 - L3 - for B - Image erecting lens.
L3 - L4 -for A - L4-L5- for B - Eyepiece.
L0 - Field lens.
y - Distant object.
H - Periscope optical height.


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参考资料

  1. ^ 最後一部配備潛望鏡九巴退役 車長︰難忘與乘客隔鏡交流. AM730. 2023-03-09 [2023-10-16]. (原始内容存档于2023-03-28). 

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