problem with lens?

[Mohrenberg]

i lit a cigarette with my phr803! i have it set at 141mA, but i was lookin at my lens and it seems to be getting cloudy...maybe from the heat?
the only thing i can think of is getting a glass lens but doesn't that have negative effects on the power of the beam?
oh yah....i'm using a plastic lens right now, incase your wondering.
btw, does anyone know about what my laser would be pushing out at 141mA?

 

[lazer]

The cloudy lense could be condensation :-/

 

[nvmextc]

Glass AR lens will reduce the power of the beam by reflecting more light back onto the diode, damaging it in the long run. I think it's best to stick with the plastic for now.
I've noticed a cloudy/bubbly effect too in some plastic lenses, I've always just assumed the lens is slowly being melted by the laser.
Oh and 141ma might put you around 100-140mW, but you won't know what it is for sure unless you can measure it. PHR's seem to be unpredictable sometimes.

 

[Mohrenberg]

Glass AR lens will reduce the power of the beam by reflecting more light back onto the diode, damaging it in the long run. I think it's best to stick with the plastic for now.
I've noticed a cloudy/bubbly effect too in some plastic lenses, I've always just assumed the lens is slowly being melted by the laser.
Oh and 141ma might put you around 100-140mW, but you won't know what it is for sure unless you can measure it. PHR's seem to be unpredictable sometimes.

i figured it would have to be up there since i lit a cigarette with it doay, granted, i barely got it lit, and was puffing away like a madman the whole time i was burning it.