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I just built my first laser. It's just a blue laser in an aixiz lens. It's driven by an adjustible powers source, so I can adjust the power output to as high as I want. I typically run it around the 1W mark. The laser is powerful, beam is visible and it burns through cd jewel case as expected...

I just received my first green laser. It's only a 20mw model come as a gun laser kit, that I bought from DealExtreme. I'm very impressed with this green laser. The color is so rich and pure. I can totally see why this forum exist. In day light, I can easily look at the dot this laser makes on...

Correct me if I'm wrong, but the collimating lens will make the beam straight, and the asperhic lens will change the shape (from rectangle to circular)?

Thanks guys. I just wanted to know what a typical laser pointer is capable achieves in terms of divergence. I wouldn't mind a a tighter beam however. Can anybody recommend some optics?

Hi Guys, This is my first laser project and I'm going to be building a mid power blue laser. I'm looking to output 100-200mw. I've already aquired my laser diode and have tested it using a my own little test rig. I was a little surprised that lasers require focusing optics (first time...