As I known earlier, the blu-ray laser diode is widely used in blue laser drive or player and its output power is usually from 5mW to 7mW of laser radiation at 404-407nm (nominally 405nm) in the violet part of the spectrum. Because it is at the violet end of the spectrum, it will not be as visible as blue, green, or yellow laser pointers, but the color is absolutely gorgeous, and is ver…