The difficulty of collimation is well expressed by use of QP. The smaller the value of lθ5 is, the more easily the beam is collimated.
，较好地反映了在实际工程应用中光束准直的难易程度，此值越小光束越容易准直。
参考来源 - 激光二极管光束质量评价方法研究Because of simple structure and easy fabricating, the cylindrical lenses have been used in many practical applications for beam collimating of LDs.
柱透镜因其结构简单、材料便宜以及加工容易而在半导体激光束准直领域获得较多的应用，但普通的圆柱透镜其准直能力非常有限，为了提高柱透镜的光束准直能力，设计出更加合理和可行的结构是目前在这方面研究的主要方向之一。
参考来源 - 半导体激光光束准直技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
我们的剪切板准直度测量仪是用于检查和调整激光光束准直度的横向剪切干涉仪。
Our collimation Testers are lateral-shearing interferometers that can be used to examine and adjust the collimation of laser light.
在对波面矢高进行定义的基础上，提出CC D轴向扫描检测激光束准直度的方法。
Based on the definition of wavefront rise wavefront analysis method of CCD scan is introduced.
对半导体激光器光束准直场的研究具有重要的意义，半导体激光器的远轴模型能精确描述其发出的光束。
The study on collimation properties of semiconductor laser beams is valuable and the off-axis model can characterize accurately the output beams of semiconductor laser.
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