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SL Eagle Pair Glasses NOT Okay for Specified Range

This is the manufacturer supplied graph for the SL-RLG11 goggles.

14097042229_b544ebc60c_z.jpg
 





LaserGlow
AGF59459X
OD 5 + @
576-600nm &
OD 6.5 + @
585-595nm
VLT 14.4%
Yellow lasers: 576-600nm up to 500W
they are $139 and in stock

I take it eva never got back to you about the OD 2 violet lensed 589 glasses when you were running the CNI GB.
 
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I have the same goggles as mentioned in the OP and one thing I noticed when testing them with 593.5nm is the dot didn't dim very much when looking through them, maybe a maximum of half brightness. What I am seeing is actually the yellow dot so it's not fluorescence. I can also point them at my sodium lamp which is SOX and so only emits one wavelength of 589nm - and while it does attenuate the light somewhat, "yellow" is still visible. While these do definitely block some yellow, their effectiveness at anything below 600nm certainly doesn't appear to be anywhere near OD4.
 
I also had good service from CascadeLaser although I did pay through the nose for my goggles. They don't seem to be very well known around here but they were the only place I could find ARG goggles in style 60, a lot of other places had either stopped doing them or had no way to add them to a basket.

Visible Wavelengths (400 - 700 nm) Laser Glasses | Laser Goggles | Cascade Laser

I have three Eagle Pairs myself -- they have their uses, but with 6W 445s and 1+W 635s I'd be wary of entrusting one's eyes to non-certified Chinese plastic!
 
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wannaburnstuff said:
I appreciate the offer, however this laser is never leaving my personal possession. Not a matter of distrusting you. Rather a matter of I have seen USPS. And have little to know faith in them.
Click to expand...

Fair enough. If you have an LPM I'd be interested in knowing the power reading when filtered through the goggles.
 
The OD isn't a constant across the stated range either, there will be high and low spots, and I would expect it to be low at the ends of the range. OD vs wavelength graph would probably look like a parabolic-like curve with some bumps in it. I've observed this effect with 543.5nm vs my "190 to 550" or similar glasses. The green HeNe is too close to the end of the range; a lot of it gets through.

My anti-red safety glasses clearly have different absorbences for 635nm and 660nm. The former is a much-dimmer red dot. The latter is practically invisible. The anti-red glasses give 780nm as the end of their range.

It would seem to me that OD is an average over the stated range. If it were me, I would get a pair of glasses with my wavelength-of-interest approximately in the middle of that range.
 
Marco Polo said:
The OD isn't a constant across the stated range either, there will be high and low spots, and I would expect it to be low at the ends of the range. OD vs wavelength graph would probably look like a parabolic-like curve with some bumps in it. I've observed this effect with 543.5nm vs my "190 to 550" or similar glasses. The green HeNe is too close to the end of the range; a lot of it gets through.

My anti-red safety glasses clearly have different absorbences for 635nm and 660nm. The former is a much-dimmer red dot. The latter is practically invisible. The anti-red glasses give 780nm as the end of their range.

It would seem to me that OD is an average over the stated range. If it were me, I would get a pair of glasses with my wavelength-of-interest approximately in the middle of that range.
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ARG filters right up to 532 ish nm and then has a very sharp dropoff. They are marked as filtering up to 532 and they do. The Eagle Pair are marked as covering 580nm upwards but anything below 600nm they don't appear to be worth bothering with. That's the difference, you get what you pay for, and if you pay for cover up to XXnm I don't think it's unreasonable to expect it... I could tell straight away when I put the Rigel through them that they just didn't cut the mustard for yellows at all. Really they should probably be marked with protection for say 600nm and up and if necessary specified a lower OD range for this.
 
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So I measured them today, and it looks like they cut out about 90% of the light, as it brought it down to 3-5mW. Still not fully blocking, but a lot safer than what I originally thought. 3-5mW of 589 is bright!
 
It is OD 1.1

This is based on a transmission percentage of 8% via 4/50.
 
Hey guys, I've been following this for a few days, and I thought maybe I better check out my S.L. goggles, they are the Eagle Pair 190-400nm + 580-760 Laser Safety Goggles.
I used my C.N.I. PGL-III-C 589nm, which was outputting about 150mW today. With the "Eagle Pair" between the laser and the Ophir, I got a reading of 2.1mW; a reduction of 98.5% (almost OD 2)?
While nothing to write home about, I could look at the dot on my Ophir while wearing the goggles. :)


Edit: Here's a couple of crappy pics of my results. I actually got some lower readings this time



67798609-7dcf-4495-9ce8-73132ed8fde8_zps91037a70.png
9e3cee57-2808-4e24-8a89-ee84532db30d_zps87042d68.png
 
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Same pair as Isaac has (and myself).

That means then that someone's measurements are out or the protection levels differ from pair to pair.

Ps. You are one lucky man for owning 150mW of 589... in a handheld no less.
 
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You're right, I've got to believe the protection level varies from one pair to another, especially near the edge of the coverage range. As good as the "Eagle Pair" are, they are still only moderately low priced goggles, which have done a good job of protection from most of the wavelengths we encounter.

You are correct, I consider myself very fortunate to hold 150mW of sunshine in my hand!
 
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wannaburnstuff said:
So I measured them today, and it looks like they cut out about 90% of the light, as it brought it down to 3-5mW. Still not fully blocking, but a lot safer than what I originally thought. 3-5mW of 589 is bright!
Click to expand...

I'm sharing this information with the manufacturer, and I am trying to get a sample of goggles with a little better coverage range (down to 560nm). Would you like to review them? ;)
 
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Garoq said:
I'm sharing this information with the manufacturer, and I am trying to get a sample of goggles with a little better coverage range (down to 560nm). Would you like to review them? ;)
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I look forward to seeing what you can procure. Sent some rep your way earlier, otherwise I would rep you again. It is nice to see a storefront runner actively working towards improving stock. As for reviewing whatever you find, I would love to simply to get some hands on experience with them and see how it fares against the 589nm wavelength.
 
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