pens laser wave length
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In fact, there is little difference between LD laser and LED light source from the point of view of excitation source. YAG laser is not only laser radiation, but also LED excitation light after adding fluorescence conversion in semiconductor. The main difference is that laser monochrome is very good, LED spectrum will be wider, suitable for display, lighting and so on. In addition, the brightness of the two can not be compared, because the laser is linear light, strong directivity, if no processing brightness will be much larger than the LED. Laser for RGB visual effect is not mature, only stay in the laboratory state, laser projection, laser TV is only a concept now.