From: gherold@teachspin.com   
      
   On Tuesday, July 31, 2018 at 1:00:50 PM UTC-4, Cursitor Doom wrote:   
   > On Tue, 31 Jul 2018 06:05:52 -0700, George Herold wrote:   
   >   
   > > Knowing nothing, I assume so.  Visible laser safety counts on the blink   
   > > reflex, when the eye is exposed to strong light.  (like the sun)   
   > > I assume babies have this reflex... You could google it.   
   >   
   > But you don't have to get *that* powerful before the blink reflex won't   
   > save your sight any more. I've got some 2.5W violet lasers here that will   
   > blind someone *instantly* and cause permanent scarring on the retina.   
   > Mind you, these are about 500x more powerful than the average laser   
   > pointer.   
   >   
   I think class 1 is less than 1mW in the visible.   
   We sell a class 3B laser.. it's in the NIR... no blink reflex.   
   (I always encourage people to buy extra laser goggles.)   
      
   George H.   
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