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This cannot be a laser diode. It has a very wide frequency spectrum (wavelength spectrum). As measured at 100mW at 450nm and 130mW at 362nm (assuming the measurements where done correct). Having a blue color means that a substantial amount of energy is around 450-490nm. With the eye it seems...

I haven't put any time to investigate more on the subject but the peak was at 362 nm. http://www.sheffield.ac.uk/eee/research/smd/research/uvled I think this is an Si doped GaN semiconductor in order to increase the bandgap.

Returned with news. I went to the lab and checked the values. At 450nm I got almost 100mW Moving up and down in wavelength I found the center at 362nm. This responds to the bandgap of a GaN semiconductor. at 130mW. After some talking with some friends there we concluded this is one of...

This is what i wanted to hear, that there are unfocused blue lasers. I am going to test it in the lab to check the actual power output and report. Cheers!

Any wild guess about the beam spread without the focusing head?

Hi, I just got this laser pointer Wholesale Product Snapshot Product name is 445nm/447nm/450nm 1000mw/1Watt Waterproof focusable blue purple laser pointers burning star pointer torch +free shipping and I have some concerns and questions post here. After testing it underwater it seemed to work...