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WOW thank you SO much aryntha! i just adjusted the screw threads a bit and i can see the beam and the dot is blinding again thanks man i really appreciate it

Hey, I bought the blue laser from this post ( http://laserpointerforums.com/f38/inexpensive-blu-ray-laser-pens-worth-look-46487.html ) and I have had it for a week or so and it suddenly got really dim. I thought it was the batteries so i got some new ones and threw them in but its still REALLY...

Ohhh alright

Good! I REALLY want yellow and orange lasers but I'm pretty poor. Another thing I was thinking about, is what the different wavelengths do. It seems to me that each wavelength has strengths and weaknesses, is this right, or just crap?

Thanks! Yeah we only used one laser really, it was just a lab style red one, not sure of the power. I was just amazed at the wavelengths and frequencies of visible and non visible light. Oh yeah I'm definitely getting the green 5mW laser i was talking about, really excited One thing I don't get...

Thanks guys, this is an excellent forum :D

Yeah, I'm pretty into this one right now. DealExtreme: $10.43 True Green Laser Pen 5mW The customer reviews are pretty impressive too

Wait so what are laser pointers' power measured in? Milliwatts or megawatts?

So, a 5 Mw green laser pointer is a good start? Haha that's good because its "legal" I guess

Oh my god thanks man, this is perfect! :D

Alright, I have a sudden interest in lasers due to a physics class I had. I have recently been looking up all types of articles and videos about wavelength, power and other things concerning lasers. I have also been looking at TONS of different sites such as nova lasers and laser glow. I was...