国产一级a毛一级a看免费视频,久久久久久国产一级AV片,免费一级做a爰片久久毛片潮,国产精品女人精品久久久天天,99久久久无码国产精品免费了

光斑均勻鏡的特點：

    此類光斑均勻鏡是通過衍射的辦法，將激光光斑功率均勻化（激光功率均勻化），可用于多模激光。同時，也可以根據需要，自定義光斑輸出的形狀。

We normally design our diffuser products using a robust hybrid multi-spot/diffusing algorithm, optimized for a given diffusion angle
or output beam size. We design any shape requested by customer. The most common shapes requested are square, round, rectangular
and elliptical. The edges of the diffusers beam are generally steep and well-defined, as long as the input beam is closely collimated.
（See figures 1 & 2 below） The intensity profile of the Homogenizer beam is "grainy" or speckled as can be seen in figure 1 below.
The pseudo-random energy diffusion of diffuser creates a randomly speckled pattern in output beam, due to interference from phase
overlapping.光斑均勻鏡