The main function is to guide the spotlightsource of LED to plane light source.
导光板主要功能是引导LED的点光源成为平面光源。
2
Integrity of the spotlightsource of social, the good faith voices wake up the foundation of human nature.
诚信之光点亮社会之源，诚信之声唤醒人性之基。
3
For the question of fusing display of circular area on 3d model, a simple solution was put out, that used a spotlightsource to simulate the fusing effect of circular area display on 3d model.