The third chapter discussed how to perform a fresnel lens with the principle of fresnel zone diffraction.
第三章阐述了菲涅耳波带透镜的基本原理和标量衍射理论；
The one-dimensional Fresnel zone phase correcting principle can be applied in a cylindrical surface to constructed a new type of point source feeding lens antenna.
在圆柱面上进行一维菲涅尔区相位修正结构设计，可以构成一类新型的点源馈电透镜天线。
Where the Shandong Qingdao development zone can buy an oersted carat of haptic lens?
山东青岛开发区哪里可以买奥克拉隐形眼镜?。
It ACTS as a two-cylindrical lens system. The other is prepared by overlapping a line-type zone plate and a circular zone plate.
另一种是一个线型波带板和一个圆型波带板的组合，效果相当于一个凸透镜和一个柱面透镜的组合。
One is prepared by overlapping two line-type zone plates. It acts as a two-cylindrical lens system.
另一种是一个线型波带板和一个圆型波带板的组合，效果相当于一个凸透镜和一个柱面透镜的组合。
One is prepared by overlapping two line-type zone plates. It acts as a two-cylindrical lens system.
另一种是一个线型波带板和一个圆型波带板的组合，效果相当于一个凸透镜和一个柱面透镜的组合。
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