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    Do I need a lens?

    Hey maybe you pros could shed some... Er, light on my laser problem. I bought a cheap laser off this electronic Bay website. It is a 405nm with a cool violet colour, but the problem is it has no lens. The beam divergence is crazy, it turns into a 4 inch blob at about 10 feet away, and outside it...
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    I am Indecl1ne. I am from parts unknown. I like lasers, just like you. :)