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I recently built a laser with a PHR diode running at 125mA, in a Dorcy Jr. host. I had a whole bunch of problems with it (as evidenced here: http://laserpointerforums.com/f38/help-w-broken-phr-pointer-42442.html) but I think i've figured out that the driver isnt getting enough voltage even...

Hello, I just finished my first ever laser build, its a PHR using the flexdrive at 125mA. It worked great for about an hour, but now when I turn it on it flashes the bright purple it used to be, then goes extremely dim and stays dim. Whats wrong? do I need a new battery? (I didnt use it that...

I found these and figured I'd share, its a year old so you might have seen it already: Laser Pizza Cutter | Gadget Lab | Wired.com nerds with too much time are the best

Hi, I'm totally new and just a random guy who likes lasers, and might be interested in building one, but first I was wondering if anyone has made a term glossary or dictionary to help people like me take the very first steps. I'd like precise definitions of what each of these are and what they...

I recently got back from China, where I bought a green laser at a market (for about $20) which claims to be 200mW, but from what ive read online I doubt its that powerful - it cant burn anything, even though the beam is extremely bright and can be seen at night and in low light. it looks just...