collimated beam

基本解释

Use collimated reference beam for recording.
参考光采用平行光。
The method is based on measuring the deflection of rays from a collimated light beam due to gradients in refractive index.
平行光通过折射率存在梯度的场，光线产生偏转，即产生云纹效应。
A position sensor based on slit projection is developed. Its measurement principle and application in precision positioning are described. A projection slit is illuminated by a collimated laser beam.
提出了一种基于狭缝投影的位置传感技术，阐述了此技术的传感原理及其在精密定位中的应用。
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