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Old 11-18-2008, 12:31 AM #1
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Default Where is IR ?

IR - Where exactly is it spewing out to? Is it just within the beam or does it diffuse out into open air? What I'm wondering is if standing near a beam or near the source can cause IR damage without taking a shot to the eye.

I have done some searching and don't mean to post about something if it's already been done. So if there is already a post about this, a link would suffice.


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Old 11-18-2008, 01:16 AM #2
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Default Re: Where is IR ?

No, you will be ok. I promise. The IR spill from a DPSS laser is negligible.



Welcome to the forum. *


Oh... and it comes out the same place that all the other light comes from...

Edit: If I find some links I'll post them... I can go on for days about how excess IR is not dangerous.

http://www.laserpointerforums.com/fo...num=1225652913
http://www.laserpointerforums.com/fo...num=1225630744

This one is kinda lengthy and is on the verge of becoming an argument, but I think it has more information than the first two.
http://www.laserpointerforums.com/fo...=1219954353/20
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Old 11-18-2008, 01:25 AM #3
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Default Re: Where is IR ?

Quote:
Originally Posted by sacapuntas
IR - Where exactly is it spewing out to? Is it just within the beam or does it diffuse out into open air? What I'm wondering is if standing near a beam or near the source can cause IR damage without taking a shot to the eye.

I have done some searching and don't mean to post about something if it's already been done. So if there is already a post about this, a link would suffice.
But in case your still wondering, the IR is in a beam, but it's more like a flashlight: it diverges much quicker than the visable light. But yes, unless you have a greenie with an output of, like, 100mW, you don't need to worry about IR. And most 100mW greenies will have IR filters, if they're bought from tried-and-true companies.

Welcome to the forum, BTW. 8-)
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Old 11-18-2008, 01:40 AM #4
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Default Re: Where is IR ?



Infrared general starts at 750nm and continues in the longer wavelengths. *There, you will find IR.
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