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I doubt if I am the first to do this, but it is really cool: If you take a mirror, write something on the mirror backwards and then put the mirror about 3 feet from the ceiling, facing the ceiling, then turn it upsidedown to you, then shine your laser pointer at the ceiling above the mirror...

This seems like a cool bunch of people, so I think this will be an informative place to learn. I have been obsessed with lasers since I worked on a tv show called Babylon 5 as an alien and they gave me a laser. (that's me in the profile picture) to act like i was performing surgery. The laser...

Hi. I am looking for a used pair of goggles for a green laser. I tried Dragon, but I can't place an order on their web site. If someone has a pair, I can pay by pay pal or check. Thanks. Rick

I just bought a 150 mW green laser from Optotronics and want to buy a 10x or 20x beam expander. Maybe someone has one they want to sell, or maybe someone can tell me a cheaper place to buy one. I am a newbie at this, so I don't know if they are generic, or if you can get an adapter, etc. Any...

Hey everybody. Brand new here. I placed an order with DL for a 125 mw green laser, and then saw all the good things posted about Optotronics, and cancelled my order with DL and bought a 150 mw laser with Opto for $100 less. I haven't seen it at night yet, but it is very powerful for burning. I'm...

Hey everybody. Brand new here. I placed an order with DL for a 125 mw green laser, and then saw all the good things posted about Optotronics, and cancelled my order with DL and bought a 150 mw laser with Opto for $100 less. I haven't seen it at night yet, but it is very powerful for burning. I'm...