准直轴

The zero-position is the position of the Z-axis, with which each measuring objective of the autocollimator

位是Z 轴的位置，通过它每一个测量物镜由自准直仪聚焦到各自自定心固定器的最高边缘上。

Heteroaxial double half-cylindrical lens collimate beam of laser diode ［J］.

异轴双半圆柱透镜准直半导体激光光束［J］。

The facetted lightcollimator is arranged along a longitudinal axis (25) of the illumination system.

该多面光准直器沿照明系统的纵轴(25)设置。

This paper introduces the method and gives implimentation step and point position measure errors of the mechanical axis alignment.

分析了准直安装各步骤能达到的精度，研究了几十m长机械轴准直控制测量网的建立和理论坐标值的修正。

Based on the definition of wavefront rise wavefront analysis method of CCD scan is introduced.

在对波面矢高进行定义的基础上，提出CCD轴向扫描检测激光束准直度的方法。

Vector expression is adopted in analyzing the relation between off-axis parabolic parameters and collimation property.

采用矢量的方法，分析了离轴量等参量和准直性能之间的关系。

Methods CTVE of auditory ossicular chain was performed with 1.0 mm collimation at pitch 1.0,bone algorithm,9.6 cm FOV,and 0.1 mm reconstruction interval in 40 patients with middle ear diseases,30 of them were proven by operation.

方法使用准直1.0mm、螺距1.0扫描，骨算法、视野9.6cm、间隔0.1mm重建对40例临床怀疑中耳病变（30例手术）的患者进行CTVE成像，并与轴位HRCT、MPR图像及手术结果对照分析。

The numerical results indicate that the collimating performances of two lens changed little as the increasing of the refractive index and this made it possible to choose the material of the lens in more field.Theoretically,the radiation angle of laser diode beams in the quick axis can be compressed under 0.1 mrad.

结果表明：这两种柱透镜的准直效率随折射率的变化不大，这在一定程度上提高了透镜材料选择的灵活性；并且理论上，共轴双半椭圆柱透镜可以将半导体激光光束快轴方向的发散角压缩到0.1 mrad量级。

The lens axicon is based on the use of the spherical aberration of the mirror surfaces,which is inexpensive and easy to manufacture into a element with large apertures as compared with diffractive axicons,refractive cone axicons,and earlier lens axicons with aspheric surfaces;the opaque disk can offer the Bessel beams with long non-diffracting distances,and the diameter of the central peak is adjusted by choosing the focal length of the collimating lens;the tunable fluidic conical lens is a new device for generating Bessel beams,which can obtain the Bessel beams with different parameters by varying the refractive indexes of the solution which is filled in the device.

双透镜轴棱锥法主要基于透镜球面像差的运用，与衍射轴棱锥、折射轴棱锥和早期的非球面轴棱锥相比，具有加工简单、便宜，易于制作大尺寸的特点；不透明障碍物法得到的贝塞尔光束具有很长的无衍射距离，其直径可通过选择不同焦距的准直透镜来得到调节；可调流体轴棱锥是一种产生贝塞尔光束的新型器件，它可以很容易地通过改变注入器件的液体的折射率来得到不同参量的贝塞尔光束。

Using uniaxial amplification system composed of a high-resolution CCD,a fast axis collimation lens and cylindrical lenses,via laser emitters imaging and facula intensity-based centroid algorithm,the "smile" of diode laser array is measured.

采用高分辨率CCD、快轴准直透镜及柱面透镜组成的单轴放大系统对激光线阵发光单元成像及基于光斑强度求质心的算法实现了二极管激光线阵&smile&的测量。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。