The lens designed by this method has small size, high light efficient, accurate beam control, it can achieve the required uniform rectangular facula for the street lighting.
通过该方法设计得到的透镜，体积小，高出光效率，光束准确可控，可得到满足道路照明需要的矩形规则均匀光斑。
Do energy-efficient bulbs have a particularly high proportion of blue light?
节能灯的蓝光比例特别高吗？
The atelier that requires even quality light and high ceiling was positioned on the north and the residence on the south where the sunlight energy is most efficient.
需要高质量光照和高层天花板的工作室被定位在北面，而居所则在南面，在这里光能可以得到最为有效的利用。
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