1) focusing lens
聚焦镜头
3) Zoom lens
变焦镜头
1.
This paper explicates the theory and practice about how to create peculiar photographs by zoom lens.
本文是关于如何使用变焦镜头进行特殊光影创作的理论和实践。
2.
This paper is the discussing about the aperture-coefficients of the Zoom Lens, the formula for the calculating is: F=f/d (where.
该论文是探讨变焦镜头的光圈系数 ,镜头的光圈系数的计算公式 :F=f/D(其中 :F为光圈系数 ,f 为镜头焦距 ,D为光圈开口直径 ) 。
4) 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。
5) 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。
6) focusing-lenses
聚焦镜
1.
The data of the output power versus the spacing interval of the focusing-lenses in this Q-switched CO_2 laser under continue working condition is recorded,and the experimental curve is clearly presented on the laser stability graph.
测出了激光器在连续工作条件下输出功率随聚焦镜间距变化的数据,并借助Origin软件画出了实验曲线,使激光工作状态及输出功率随聚焦镜间距的变化情况在激光稳定性图中清楚地表示出来。
补充资料：冲击波聚焦效应