[Laser] Off the wall thought...

KD7JYK DM09 kd7jyk at earthlink.net
Thu Dec 18 23:07:08 EST 2014


: That's an interesting article. I have been able to see a 940 nm LED in a
: Wave radio remote, but my eye had to be dark-adjusted for several hours
: to do that.

I see the IR used for security cameras all the time, even in some 
illuminated areas, not sure what the wavelength is, I was told IR, but, 
relatively short to save on lens cost.  I see a few remotes and some of the 
Ramsey IR kits, but they have different looking LEDs depending on when you 
bought them so some I can't see, too long a wavelength.

Kurt 



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