I got a 95mW executive green. They're supposed to have a beam divergence of 1mm/meter. Well, this thing widens so fast that I can SEE the beam widen when I shine it into the sky. I reflected the beam off of a mirror and measured the diameter of the beam after having traveled for about 15-20 meters, and it had widened to about 5 1/2cm! That's about 2.5mm/meter! And it wasn't a bad mirror - my new homemade blu-ray has a divergence on the same mirror at the same distance of about 0.25mm/meter! It hardly gets bigger at all even after 15-20 meters!
Did I get a bad unit, or are they all like that?
Did I get a bad unit, or are they all like that?