Every now and then, one of my columns elicits enough reader response to merit a follow-up. Such is the case with a piece I wrote on green laser pointers (November 2013), in which I outlined their ...
CNI's new product--405nm blue ray laser pointer Its color is very amazing, blue violet, round spot. As known earlier, the blu-ray laser diode is widely used in blue laser drive or player and its ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback