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FrozenGate by Avery

my first thread

vsbeen

vsbeen

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Joined
Jul 28, 2010
Messages
42
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I have a noob question i wanna spend some money on some good goggles. I cant make up my mind on which one to buy

frist one was :
Eagle Pair® 190-540nm & 800-2000nm Laser Safety Goggles

2nd one was :
Black sport-wrap laser safety glasses with high clarity polycarbonate laser protective filter for use with 190-532 nm KTP, Argon, and CO2 lasers

3rd on was:
http://www.thorlabs.com/thorProduct.cfm?partNumber=LG12

and the best one is this one but it will not do 532nm :
https://www.oemlasersystems.com/product-catalog/laser-eye-protection/broadband-ir/ir5-broadband-ir-detail

I want IR protection for 532nm and 808nm but i want my goggles for 445nm can i have it all in one?
 
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3rd pair dont cover 532nm so those are out. 1st pair are nice and cover 445, 532 and 808-2000. 2nd pair cover IR but only at 10,000-11,000nm so those arent great.

532nm DPSS produce 1064nm iirc so THESE will work well

someone correct me if im wrong on my above statement

first pair or the ones i found are the only way to go. depends on your price rangee
 
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reason i like the ones i found are 1) they look good and 2) they are OD7 at the wavelengths you want. eagle pair are only OD4 which is good but not as good as OD7 :p
 
vsbeen said:
the one you find will not do 808nm but im liking them i just find this
100-20-260 Laser Glasses
is this over kill?
Click to expand...

as mentioned above, i believe 532nm DPSS lasers put out 1064nm and not 808nm so as long as you are not buying a 808nm laser you should be good. ill go and double check that IR output of a 532nm for you though

BTW those might be slight overkill unless you want to look like an oompa lumpa
 
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ahhhhh then id say survival laser but remember they are only OD4 so if you get something over 10W you might want to step your "OD" up son :crackup:
 
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i'm going to build a 3w of 445nm
thats why i dont want to get the eagle pair i want a higher OD
 
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3W @ OD4 will be 0.3mW if im doing my math right......OD4 is up to 10,000 times reduction :thinking:

EDIT: found the right table
OD Transmittance
0.0 100%
1.0 10%
2.0 1%
3.0 0.1%
4.0 0.01%
5.0 0.001%
6.0 0.0001%
7.0 0.00001%
8.0 0.000001%
9.0 0.0000001%

Thus 3W or 3000mW @ OD4 would be 30mW. that is harmful but still not bad considering what it started at. OD7 would make 3W turn into 0.03mW

EDIT 2: wait 0.01% would be 3000mW x 0.0001 right? thus making it 0.3mW of 445nm. thus OD4 is plenty for a 3W 445nm build

im sorry man, my mind is wrecked! im studying for finals tomorrow and cant think straight. the only thing on my mind right now is external auditing.....oh boyyyyyyy
 
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I would get the first pair. It will be plenty of protection for your upcoming builds.
 
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