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Yes I do. Thats quite normal after living so long in a country. Nevertheless i still know where my roots are and am not ashamed like many others do that even change their names to hide their roots.
Nobody replied to this, it's actually very interesting stuff. Can we (and I mean everybody that went off topic) stop the trolling and just find the answer to the question at hand? Seemed to work last time.I don't like trolling, (as some will be aware!), and hate to side with someone that may be guilty of it but I have to post this...
Visible red light from 940nm led laser
The whole page is sort of interesting, certainly relevant, but it's the last post that is telling.
From Roithner Lasers, unequivocally a respectable name, had a batch of 980nm laser diodes emitting at 670nm as well. I'm not saying the red light seen from 808nm diodes is a spurious emission of a very separate wavelength , which seems to be the argument, but it certainly seems to show it is possible for an IR laser diode to emit a visible line as well.
I hope this doesn't kick the argument into another gear; just food for thought as to how someone may find it easy to believe that 808s emit visible wavelengths too. Other LD do it so why not 808s?
M
I'm surprised Sam didn't pick up on this.
You're looking directly at the laser emission with your eye, right?
The human eye's response doesn't just stop cold at some wavelength.
You can actually see into the infrared a tiny bit. Some people can
see further than others. The eye will interpret this IR light as
red, but not very dimly.
There is a danger to you looking at this 904nm laser directly. Because
the eye is so insensitive to that frequency it doesn't appear bright,
but in fact there is a lot of laser radiation entering your eye.
I believe you said in your original post that it was 50mw? That is
definately bright enough to have a real danger of causing eye damage.
I recommend reading the following sections from Sam's LaserFAQ:
Laser Visibility and Color
Sam's Laser FAQ - Items of Interest
Laser Safety
Sam's Laser FAQ - Laser Safety
Brian
proud that I was born in Germany
But how about the wide spectrum of quality of laserdiodes? They are actually in mass production, so can´t it be some of them produced with less quality do emit two different wavelenghts? Maybe they are rare and you didn´t come across such a diode till now?
Just thinking about all the LPCs-815 where one can easily be driven with more than 400mA and anotherone dies while just be driven with a bit more than 300mA.