1·Four kinds of laser source are used to measure the diffractive efficiency of Fresnel lens.
使用四种不同光源，对菲涅耳透镜的衍射效率进行测试。
2·The introduction of binary optical elements, theory of diffractive lenses, fabrication of binary optical elements and trends are related.
本文介绍了二元光学元件的概况，衍射透镜理论，二元光学元件的制造方法以及发展趋势。
3·The far field diffractive pattern calculating formula for diffraction antenna with continuous phase structure is derived by current distribution method in antenna theory for the first time.
应用天线理论中的电流分布法，首次推导了具有连续位相结构的反射式毫米波衍射天线的远场衍射图计算公式。
4·The existence and overlapping phenomena of spatial expanding components have been discovered and investigated in designing diffractive optical elements.
发现并研究了衍射光学器件优化设计中空间延拓分量的存在及其交叠现象。
5·When the diffractive optical lens is illuminated by white light, its focal length not only relates to material dispersion and wavelength dispersion, but also to aperture factor.
在白光照射下，衍射光学透镜的焦距不仅同材料色散和波长色散有关，而且还同孔径因子有关。
1·The process is a purely diffractive process since no quantum numbers exchange between the two colliding particles.
由于两个碰撞粒子之间没有量子数的交换，因此该过程是一个单纯的绕射过程。
2·A numerical model is presented that predicts the transformation of monochromatic wave over complex bathymetry, includes both refractive and diffractive effects.
本文给出一个在复杂水深地形条件下计算包括折射和绕射效应的线性波浪变形数学模型。