Originally Posted by
yaddatrance
This thread got me thinking, if the largest clear aperture is 0.05mm, at 532nm, you're going
to have at least >13mrad divergence... If the aperture at the optic is 3mm as stated
elsewhere, then the divergence can be as low as 1/4 mrad (assuming we're throwing money
at it)... but the beam will be 3mm in size... if the optic focuses a 3mm beam to a 0.05mm
point, then the divergence would be off the charts.
I do not believe it is possible with any conventional means to get a 532nm laser w/ a 3mW,
0.05mm beam and a 0.1 mrad divergence. It should not even be possible to get 0.1mrad
divergence from a 3mm beam...
If you throw enough money at it and have engineers who are good at skirting the edge of
physics, you can have 7mm beam w/ 0.1 mrad divergence for practical terrestrial purposes.
So I vote, scam or "special" specs.