A diffraction process is also used, but in this case ,the light output can be more finely turned to produce particular internal light patterns.
A diffraction process is also used, but in this case ,the light output can be more finely turned to produce particular internal light patterns.
虽然还要经过衍射过程，但是这样，出射光便可以被更好的转换为特殊形式的室内光。