concave lenses meaning in English
凹透镜
Examples
- Just as a double convex lens enlarges , so a double concave lens reduces
正象双凸透镜可以放大那样，双凹透镜也可以缩小。 - Some are flared ? that is , thicker at the rim than in the center , like a concave lens
有些呈喇叭形即边缘较中心厚，类似凹透镜。 - We fabricated a large computer - generated holography on a concave lens surface to test the convex secondary mirrors surface
在凹透镜表面上制作出了用于凸非球面检测的曲面全息图。 - We demonstrate experimentally the technique to fabricate large does in the thick film on a concave lens ( mirrors ) surface with precise alignment by using the strategy of exposure twice
采用两次曝光的方法在凹透镜表面上厚光刻胶中制作衍射光学元件。