[Laser] Are these for real ?

[F1AVYopto at aol.com]

Alberto
Laser light is dangerous for eyes  above 1/10 mW mm² (0,1 mW) even in the 
near infrared.
The use of special  optical devices (beam expender) which strongly enlarge 
the beam at its start  point (but not the beam divergence angle) is mandatory.
A more than 8 cm in  diameter output lens is a good choice.
After a more than one Km beam travel,  the laser coherence is lost because 
the air molecules effect and the light is  nearly the same a LED one.
My 120 mW laser IR diodes GH078JA2C are from  Digi-Key.
73 Yves F1AVY

didn't know that you could buy a 95mW  (or even 400mW, if you want to spend 
more) laser so easily...
Aren't they  dangerous for the eyes ? Has anybody bought from them  ?

http://www.dragonlasers.com/

73  Alberto   I2PHD


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