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Old 04-24-2013, 12:44 PM #1
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Question Infared Goggles as replacement for Protective googles

I have recently gotten into building a simple project which used two 808nm 1w lasers. I have multiple projects going so this one needs to be cheap. I am already building my own diode driver however it seems that all glasses become extremly expensive as soon as they hit 800. I dont want to spend $40 dollars on this but I am very very scared of damage to my eyes. I was wondering if it would be possible to instead use some infared goggles. I figured one eye is completly blocked and the other can only see through the little screen, and maybe the dot would be even brighter. Im pretty sure this would work, and the end product will only be see able through a webcam so these would only be used during building.


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Old 04-24-2013, 01:29 PM #2
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Default Re: Infared Goggles as replacement for Protective googles

What do the goggles look like? Im worried about the light that could possibly bleed around them. What you see through the screen shouldnt be damaging. You can run them really low powered as well to align or set up whatever it is you are dking as well.
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Old 04-24-2013, 02:42 PM #3
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Default Re: Infared Goggles as replacement for Protective googles

Do you mean by using night vision type equipment? As long as the input and output are optically isolated you should be fine. Just ensure no leakage and make sure any unprotected eye is physically covered. You can easily damage night vision equipment with lasers, so be carefull.

FWIW, $40 is cheap for eye protection. Try finding goggles that have OD5 or more against 593.5nm, 808nm, 946nm, 1064nm, and 1342nm simultaneously. Now you're looking at real investments.
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Old 04-24-2013, 03:05 PM #4
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Default Re: Infared Goggles as replacement for Protective googles

There is basically no leakage and yes they are the night vision kind, I cant think of any reason why it wouldnt work.
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Old 04-24-2013, 03:13 PM #5
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Default Re: Infared Goggles as replacement for Protective googles

You shouldbbe fine. Just dont point it directly at the input or you could fry the camera.
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445nm Kryton Groove 1.6W~Sinner 3.3W
450nm Guidesman 1.2W
457.9nm ML Argon
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476.5nm ML Argon
488nm Uniphase Multi-Line Argon 48mW/73mW in current control;
496.5nm ML Argon
501.7nm ML Argon
514.5nm ML Argon
532nm SkyRay King Gre3n 35mW/60mW/70mW~Phobos Fasttech 70mW~Optotronics RPL-500 450mW~JetLasers Ti B 170mW
543.5nm Bare tube HeNe ~3mW (Nightstand lamp)
632.8nm Bare tube HeNe ~3mW~Bare tube HeNe Multimode 12mW (Desk Lamp)
638nm Mrcrouse Custom 650mW
658nm wannaburnstuff baby shower gift? 127mW
808nm Coherent CCP 10W

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Old 04-24-2013, 11:49 PM #6
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Default Re: Infared Goggles as replacement for Protective googles

I agree with Sigurthr, a $40 investment is a small price to pay to protect one's vision.
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