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 ...

Yes, green laser pointers are cool. Especially when you use them to make stuff fluoresce. Ok, what about a blue laser pointer? They are getting surprisingly cheap (Amazon has a 10 mW for pretty cheap) ...

Two weeks ago, my sixteen year-old son asked me for some money. He wanted to work on a “project,” to build a laser pointer capable of emitting blue light. I’m sure very few of you have seen such thing ...