双凹透镜
shuānɡ āo tòu jìnɡ
- biconcave lens
双凹透镜-
利用高斯光束的传播理论和ABCD定律，导出了椭圆高斯光束经一双凹柱透镜变换后的光束参量公式，指出了提高线聚焦效果的途径。
In this paper , the parameters of an elliptic Gaussian beam passed through a double concave cylindrical lens are derived , by using the theory of Gaussian beam propagation and the ABCD Law . And the way to improve the effect of line-focus is pointed out .
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劲科科技可以生产加工多种规格的平凸硒化锌透镜、平凹硒化锌透镜、双凸硒化锌透镜、双凹硒化锌透镜等各种硒化锌、锗透镜。
Jinke Technology can produce flat convex ZnSe lens , flat concave ZnSe lens , double-side convex ZnSe lens , double-side concave ZnSe lens and other ZnSe or Ge lens .