The planoconcave cylinderlens and prism properties of angular magnification in light scanning are analysed in the paper.
对圆柱面——平面型平凹柱透镜和棱镜的扫描角放大特性进行了分析比较。
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This paper designs an optical system and some lenses for the BD OPU, including collimator lens, beam shaping lens for laser beam shaping, and cylinderlens for signal detecting.
A piano-convex cylinderlens is utilized to convert the laser beam to plane, to forms a stripe on the welding works. Two frames of stripe image are captured by the cameras synchronously.