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。
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。
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。
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。
The measurement of distribution of extericr wind noise of automobile by acoustic mirror
声学聚焦镜测量汽车车外风噪声分布
Design and Application of an Abaxial Reflecting Focusing Mirror
一种离轴式反射聚焦镜的设计及应用
autofocus zoom lens
自动聚焦变焦距镜头
The telescope got out of focus.
望远镜聚焦不稳了。
"A convex lens causes rays to converge on a single point, the focal point."
会聚透镜使光线会聚于一点,即焦点。
The circularly polarized light is then focused down onto the disk.
圆偏振光经物镜聚焦后射到光盘上。
Camera focuses on the face below it.
（镜头聚焦到它下面的一张脸上。
Adjust the focus ring on the projection lens
调节投影镜头上的聚焦环
Analysis and Measurement of Spot Focusing Lens Antenna Resolution
点聚焦透镜天线分辨率的分析与测量
He focused the sun's rays on a paper with a burning-glass.
他用一面凸透镜把阳光聚焦在纸上。
Research on Manufacture and Optimized Methods of GRIN-rod Lenses;
自聚焦透镜制造技术与性能优化研究
Design and Implementation of an Autofocus System for Optical Microscope;
光学显微镜自动聚焦系统设计与实现
The Preliminary Study of the Diagnosis of Barrett s Esophagus with Confocal Endomicroscopy;
共聚焦内镜诊断Barrett食管的初步研究
Coupler Loss of Self-Focusing Lens Used in Optical Communication
光通信用自聚焦透镜耦合损耗的研究
He focused the sun's ray on a piece of paper with a burning-glass.
他用一面凸透镜把阳光在纸上聚成焦点。
Parameters of focusing object lens and structure of3- D storage media are designed.
设计聚焦物镜的参数和三维存储介质的结构。
If your camera is not brought into focus, the photograph will be blurried.
如果照相机镜头聚焦不准, 照片就会模糊不清。
The beam of flashlight diverges, but it can be refocused with lenses.
一个发散的闪光灯束可以用透镜重新聚焦。