阵列波导器件封装中机器视觉系统的光源分析与设计

为采用机器视觉实现对阵列波导器件的光路对准,需要设计合理的照明方式观测到阵列波导器件的光路.介绍了照明技术,通过实验比较了不同光源照明,最终发现采用平行光从背面进行照明才能观测到阵列波导器件的光路.按照明要求设计了一种新型的平行光源,通过对光源的光照度分布进行建模仿真,仿真结果显示在光照面积固定时,采用大焦距的透镜可以得到更均匀的光照度.实验结果显示,采用新设计的光源进行背面照明可以清晰观测到阵列波导器件的光路.

Light Source Analysis and Design of Machine-vision for Array Waveguide Bonding

In multi-channel alignment of AWG(Array waveguide grating) by machine-vision, channels of AWG should be observed by a reasonable illumination.After the analysis and experiments of different lighting types,parallel backlight illumination is approved a method to observe channels of AWG.The illuminance of new lamp-house is simulated and designed.The results of simulation show that,the longer is focus of lens,the more uniform lighting can be gotten in equal lighting area.The experiment shows that the channels o...