激光束

The measuring device is structured by including a He-Ne laser; a beam expander, a soft aperture slot and a off-axis parabolic mirror to be measured are arranged in turn along the direction of the emergent laser beam direction of the He-Ne laser; a standard cross hair and a micro objective are arranged in turn on the direction of the reflected beam of the off-axis parabolic mirror; the micro objective is arranged on the focus of the off-axis parabolic mirror; the focus is imaged on an area array CCD; the output end of the area array CCD is connected with a computer; the off-axis parabolic mirror is fixed on a five-dimensional electric adjusting frame.

一种离轴抛物面镜点聚焦能力测定装置和测定方法，测定装置的构成包括：一台He-Ne激光器，沿该He-Ne激光出射激光束方向依次设置扩束器、软边光阑和待测的离轴抛物面镜，在该离轴抛物面镜的反射光束方向依次设置标准叉丝和显微物镜，该显微物镜位于所述的离轴抛物面镜的焦点，所述的焦点成像于面阵CCD上，该面阵CCD的输出端接计算机，所述的离轴抛物面镜固定在一五维电动调整架上。

The purpose of studying this project is that as the benchmark plane the laser planethat is produced through cylindrical lens can be used to measure minutely based onthe stability of the laser plane.

本课题研究的主要目的在于利用激光束通过柱面透镜产生的激光平面作为基准平面，并依靠激光平面的稳定性来进行系统的精密测量。

A new method using a cylindrical lens with two wedges to improve the uniformity of the line laser is provided to solve the problem of laser beam uniformly transmitting in the laser communication.

为解决核物理工程、表面热处理、激光加工、激光通信中传输激光束的均匀性问题，提出采用三角楔柱透镜改善线激光均匀性的新方法，并在ZEMAX开发环境下建立了整形光路系统的理论模型。

Such early cancers can be destroyed by laser beam or by snipping off the tumour and burning with a hot wire passed through a cystoscope.

例如早期的癌症可以被销毁，由激光束或由微调小康肿瘤及燃烧与热丝通过一膀胱镜。

Since a straightness inspection system for long shaft needs line and angle datum,a method of straightness inspection using cross laser for long shaft is proposed in this paper.

针对长轴直线度检测需要直线和角度基准问题，本文提出采用十字线激光束的长轴直线度检测方法。

By means of a linear array CCD lightintensity distribution measuring system, via the variation of the frequency and the power of ultrasonic wave, the direction control and the intensity modulation for the laser beam can be carried out. The relation curve between acoustooptic deflexion and modulation measurement is given.

在实验中，应用线阵CCD光强分布测量仪等，通过改变超声波的频率和功率，分别实现了对激光束方向的控制和强度的调制；定量给出了声光偏转量的关系曲线和声光调制测量的关系曲线。

It could get the real density distribution of each spot through the image process arithmetic.

在数据处理中，设计了一个针对性较强的激光束光斑图像处理算法。

Article Content: double - exposure speckle displacement fields of signal processing chip Zhao Zhijun with a small helium-neon laser beam irradiation objects plane displacement took double exposure amnesty patches that can be received in the following strong form of Young's fringes This chart reflects the bulk film was irradiated point ...

文章内容：位移场双曝光散斑片的信号处理赵志军用细氦氖激光束照射物体面内位移双曝光赦斑片上任一点，在其后可以接收到扬氏条纹强形，此图反映了散片被照点所。。。

After being reflected by the object,the projection slit is imaged on a detection double slit through another lens.

准直激光束照明的投影狭缝由一个透镜以掠入射角度投影在被测物体上，狭缝投影经过被测物体表面的反射和另一个透镜的成像在探测双缝上形成投影狭缝像。

A projection slit is illuminated by a collimated laser beam.The projection slit is projected onto an object to be measured with grazing incidence through a lens.After being reflected by the object,the projection slit is imaged on a detection double slit through another lens.

准直激光束照明的投影狭缝由一个透镜以掠入射角度投影在被测物体上，狭缝投影经过被测物体表面的反射和另一个透镜的成像在探测双缝上形成投影狭缝像。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。