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Old 01-01-2012, 02:25 AM #1
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Default Will I Be Able To See The Dot On A 200mw 532nm Green With These Eagle Pairs?

Greetings,

Will I be able to see the dot on a 200mw 532nm green with these Eagle Pair goggles from Survival Laser? They say 20% visible light transmission.

Eagle PairŪ 190-540nm & 800-2000nm Laser Safety Goggles

Thanks and Happy New Year!

Glenn


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Old 01-01-2012, 02:47 AM #2
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Default Re: Will I Be Able To See The Dot On A 200mw 532nm Green With These Eagle Pairs?

They look like pretty good laser safety glasses, why don't you get them
and do a review on them, reviews are always a good thing to do even if
some one has done one before as you may have different results.
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Old 01-01-2012, 04:16 AM #3
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Default Re: Will I Be Able To See The Dot On A 200mw 532nm Green With These Eagle Pairs?

I probably will. Have been doing lots of reading on LPF and am obviously new here. Very safety conscious however and plenty old enough to take it very seriously.

Trying to find something nearly bullet proof for 532nm (also 445nm for later), concerned about IR with the greens, but want to find something with good VL transmission as well. Want to safely burn, learn to focus, pop balloons, etc.

Thanks for the suggestion.

Glenn
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Old 01-01-2012, 11:58 AM #4
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Default Re: Will I Be Able To See The Dot On A 200mw 532nm Green With These Eagle Pairs?

Have a look here for some serious protection!
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Old 01-01-2012, 03:40 PM #5
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Default Re: Will I Be Able To See The Dot On A 200mw 532nm Green With These Eagle Pairs?

For some reason that site is quite confusing for me! Not sure which ones would work for blues and greens. Seems like this pair would work great for blues and greens, but falls of the cliff right at 532nm and has nothing for IR. I wonder perhaps if my greens could be slightly longer than 532nm where this would be a problem?

Thanks Fiddy.

Glenn
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Old 01-01-2012, 09:17 PM #6
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Default Re: Will I Be Able To See The Dot On A 200mw 532nm Green With These Eagle Pairs?

The pair you linked to has plenty protection against green and blue lasers, up to 1W/mm^2. Green lasers with a wavelength longer than 532nm are very rare and expensive. The typical DPSS green laser can only vary ~0.1nm in wavelength because of their physical wokring principle, so don't worry about wavelength shifts of your laser.
The sharp cutoff just after 532nm actually improves the VLT, the glasses pass as much non-laser light.

I found 3 pairs that cover up to 532nm, 808nm and 1064nm with a decent OD:
TRI - KTP, 808nm, 980nm, YAG [NR-TRI-EN207] - $168.00
YAD - YAG, Harmonics, 808nm [NR-YAD-EN207] - $203.00
YHD - YAG, Harmonics, 800-1500nm [NR-YHD-00FDA] - $210.00
My guess would be that the first one would be closest to what you are looking for, although I do not know how high IR powers you're working with.
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Old 01-01-2012, 11:36 PM #7
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Default Re: Will I Be Able To See The Dot On A 200mw 532nm Green With These Eagle Pairs?

Glenn,

Is your 200mW laser with or without IR filter ?
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Old 01-01-2012, 11:45 PM #8
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Default Re: Will I Be Able To See The Dot On A 200mw 532nm Green With These Eagle Pairs?

@Bluefan, Thanks for the information and links. I did not know that about the small variance of DPSS greens. Also, my IR is only incidental to my greens as I am not working directly with IR wave length lasers. +1.

@Brenner, My understanding is that the 200mW is NOT IR filtered, but I am in the process of adding one to it.

Thanks to you both.

Glenn
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Old 01-02-2012, 12:02 AM #9
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Default Re: Will I Be Able To See The Dot On A 200mw 532nm Green With These Eagle Pairs?

For a few bucks you can get IR filter that will protect you and others from IR leaks.

Much more expensive option is to go with 532nm + IR wavelengths glasses.
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