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- Jun 12, 2011
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Hello everyone, I am pretty new to the forum (not to lasers). I have a question about optics for my co2 laser rifle I've recently built. I'm trying to pinch the beam down into a thin parallel beam with relatively low divergence. My thought was to use an aggressive beam expander to fan out the beam, then using a convex lens, rapidly pinch it down. Before the focal point, I'd introduce a negative diverging lens (concave), to sustain a parallel beam that would therefore reduce the diameter of my beam. Is my logic correct on this one? Or am I missing something? Id like it to have some penetration power/cutting potential at great distances without having to build a complex range finder apparatus with actuators and programming to adjust the optics to produce the minimum beam spot size on target at varying distances. Any help would be MUCH appreciated!!! Thanks so much, Danny. :gun::gun:
Check out a few pics for ligitimacy....
Check out a few pics for ligitimacy....