1) Light is condensed by means of lenses.
光线由透镜聚焦。
2) condenser lens
聚光镜，聚焦透镜
3) focal lens antenna
聚焦透镜天线
1.
An analytical method was presented to calculate the focal spot size of the focal lens antenna.
根据惠更斯-菲涅耳原理,通过简单的推导,得出聚焦透镜天线焦平面上焦斑宽度的近似计算公式,并讨论了与焦平面平行的平面上的焦斑场。
4) spot-focusing lens antenna
点聚焦透镜天线
1.
In this paper, a spot-focusing lens antenna operating at 8 mm frequency band is designed according to the measurement of the density of the plasma.
根据等离子体密度的测量要求,设计了一种工作于8mm频段的点聚焦透镜天线。
2.
Aiming at the deficiency of validity of catching targets in single beam spot-focusing lens antenna, applying to ballistic wake microwave interferometer, a multi-beam spot-focusing lens antenna is mainly considered to design in this paper to augment the range of catching and enhance probability of hitting the target.
本文采用将高斯波束法,射线追迹和矢量衍射积分相结合的方法来分析单波束的点聚焦透镜天线。
5) lens focusing
透镜聚焦
1.
The equipment can be used not only in welding with lens focusing,but also in cutting with off.
6m rad,为TEM00与TEM01的混合模式;三工位光路转换器的使用,提高了工作效率,增加了加工的灵活性;根据焊接和切割具体要求,设计了透镜聚焦和离轴抛物面反射聚焦两种光束的聚焦方式。
6) Focusing lens
聚焦透镜
1.
We experimentally investigate the broadband partially coherent light focused by a focusing lens and especially the chromatic aberration effects of a focusing lens on the spectrum of the focusing light field at the geometrical-image plane.
实验研究了宽带部分相干光被会聚透镜聚焦,着重研究了聚焦透镜的色差效应对在透镜几何成像面的聚焦光场光谱的影响。
2.
Based on this principle,we put forward a simple method for generating a Bessel beam with glass capillary and focusing lens.
对光纤中传播的电磁场分析发现,其纵向分量可以用贝塞耳函数及第二类变态贝塞耳函数来描述,据此,提出一种利用玻璃毛细管和聚焦透镜实现贝塞尔光束的简易方法。
补充资料：光线
分子式：
CAS号：
性质：在几何光学中，不把光看做电磁波，而看作为光能量传播方向的几何线，这种几何线称为光线。
CAS号：
性质：在几何光学中，不把光看做电磁波，而看作为光能量传播方向的几何线，这种几何线称为光线。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条