convex-concave lens

基本解释

We fabricated a large computer-generated holography on a concave lens surface to test the convex secondary mirrors surface.
在凹透鏡表麪上制作出了用於凸非球麪檢測的曲麪全息圖。
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.
勁科科技可以生産加工多種槼格的平凸硒化鋅透鏡、平凹硒化鋅透鏡、雙凸硒化鋅透鏡、雙凹硒化鋅透鏡等各種硒化鋅、鍺透鏡。
Firstly, a telescope system is made up with a concave lens and a long-focus convex lens, by which the angle of the parallel beam from the collimator can be change.
該方法借助一個焦距較長的凸透鏡與被測凹透鏡組成無焦系統，可以使準直琯出射光束的張角發生改變；