Basedg on Fourier optical principle, the imaging property of grating illuminated by expansion source is analysed in this paper. Hence an innovative grating imaging displacement sensor is designed.

该文应用傅里叶光学原理对扩展光源照明下光栅的成象特性作了分析，并由此设计出一种新型的光栅成象型位移传感器。

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The LED light source and lenses with little distortion are selected as light sources and lens of imaging for inspection system, which provide high quality images during precise inspection.

在本系统中，选用LED光源和畸变小的镜头作为视觉检测系统的照明光源和成像镜头，为精密测量提供了高质量的图像。

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And the impacts on imaging target by the type and energy of light source as well as thickness and velocity of lint movement were also discussed.

研究了光透射成像系统中光源种类、光源能量、棉层厚度及皮棉运动速度对成像目标的影响。

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Tests to track down the pain's source, such as high-tech imaging, are costly and of questionable benefit.

CNN: Plagued by chronic pain? Treatment teams can help