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Cheap Safety Glasses - TESTED

InfinitusEquitas

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I just like the idea that for $8 shipped, I can point them towards a goggle that will absolutely make their laser safer for them.
That's just it, when dealing with uncertified goggles, you can't call them absolutely safe.


I can't find anything that seems like it would cover even all of blue and green, it seems like you might need three different sets of goggles at >$100 each and then if you need some for friends and family, it could add up to a LOT of money. Am I overlooking a pair that covers a broad spectrum.
You must not have looked very hard...

405nm-532nm
625nm-808nm
A little of everything we deal with...
 
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LSRFAQ

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My goggles, are mainly from a company called Glendale. I have both glass and plastic goggles, and I have 7 sets to cover the range I need, which is 808, plus 1064, and 808-1064=532 at the same time, plus argon and yellow dye, and krypton/ruby.

They are certified.

What you are doing is wrong. You are assuming every one here uses a low power continuous wave laser. My definition of low power is up to a watt. So some new grad student in a lab reads your review and uses those UVEX specs with a femtosecond system, where the peak power may be 150 kilowatts per pulse. See the issue? Its called "Slippery Slope" in debating class.


You do not test for repetitive hits, you do not test for bleaching that may occur over time.

You did not sweep the wavelength over the range of lasing covered by the possible sources, what if there is a transmission band 5 nanometers away from your laser diode? You cannot assume in this day and age that all diodes with the same part number will be +/- one nanometer in wavelength, in fact, its often a 20 nm spread.

You did not run a spectrophotometer scan of the coatings/plastic to see exactly what wavelength is covered, and you have no OD spec published, based on real data.

This is foolish.

You tested under one very small set of conditions. Your test is not valid.

You did not express the limits of your tests.

By attacking what I own, you used a "Ad Hominem" attack to deflect your lack of standards... Not the way to do things in scientific method.

A single data point is not a test. Eyes are too expensive.

END OF.

Steve
 
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tsteele93

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My goggles, are mainly from a company called Glendale. I have both glass and plastic goggles, and I have 7 sets to cover the range I need, which is 808, plus 1064, and 808-1064=532 at the same time, plus argon and yellow dye, and krypton/ruby.

They are certified.
Glendale = Sperian/UVEX/Honeywell... FWIW.

www.glendalelaser.com jumps you straight to here...

Sperian Eye and Face Protection | Sperian Workplace Safety

What you are doing is wrong. You are assuming every one here uses a low power continuous wave laser. My definition of low power is up to a watt. So some new grad student in a lab reads your review and uses those UVEX specs with a femtosecond system, where the peak power may be 150 kilowatts per pulse. See the issue? Its called "Slippery Slope" in debating class.
No, it's called extremism vs practicality.

No grad student is going to buy these glasses to protect his eyes from a 150kW laser. The people that these are being recommended to are asking about buying a 50mW-300mW 532nm laser in most cases, or perhaps a 1-2W 445 laser or a 405.

This is LASER POINTER FORUM, not fermi laser labs at Harvard.


You do not test for repetitive hits, you do not test for bleaching that may occur over time.

You did not sweep the wavelength over the range of lasing covered by the possible sources, what if there is a transmission band 5 nanometers away from your laser diode? You cannot assume in this day and age that all diodes with the same part number will be +/- one nanometer in wavelength, in fact, its often a 20 nm spread.

You did not run a spectrophotometer scan of the coatings/plastic to see exactly what wavelength is covered, and you have no OD spec published, based on real data.
I have HONEYWELL's published data on the SCT-Orange, it clearly states what wavelengths are covered.

You tested under one very small set of conditions. Your test is not valid.

You did not express the limits of your tests.
I think the limits are pretty well expressed. Did I certify these glasses? No. I don't claim that I did. Did I test them against likely scenarios for most of the members of this forum, and particularly for the members that I am aiming for with a very limited budget and a very high tolerance to risk. Younger males who want a laser on a limited budget are going to get that laser. They probably won't get $168 OEM goggles, and especially not enough for themselves and friends.

By pointing them towards some goggles that are made by a reputable company in the U.S. with published light transmittance specs, at a great price, this group of users might be willing to go ahead and get laser protection goggles.

You can pretend that everyone on the forum religiously buys, uses and carefully maintains their goggles, but we all know better in the real world.

By attacking what I own, you used a "Ad Hominem" attack to deflect your lack of standards... Not the way to do things in scientific method.
I wanted to know what you owned, not to attack it. But I do make the point that there are plenty of people buying Chinese goggles with no real certification either. Where is your outrage for them?

This is not a computer program Steve, it is the real world, sloppy, messy and full of people who take un-necessary and even illogical risks.

It is kind of like an abstinence-only sex ed plan. It might sound good on paper, but in reality it rarely works. So you need to have a safety net.

If you can afford to spend $150+ for a pair of goggles and then buy several of those to cover various wavelengths and then some more for your friends, then more power to you. But for a teen who is buying a 1w 445 laser to burn things with, these could be an eye-saver. In the real world.

They are $8, buy a pair and tell us what you think of them.
 
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Lotus_Darkrose

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Sometimes people just piss me off, lol.

tsteele93 isn't saying to get these glasses over certified ones. He ran some simple tests on specific glasses, and posted his results. He never claimed it was a professional OD test. There's all the information in this forum to let people know what certified glasses to get. It's up to the person to decide whether to be *safer* or *safest*.

Joe Blow could come into the forum and say that he bought some 100 dollar OEM glasses, when in fact he has none because he doesn't want to pay the very high price, even posts a link to the ones he "bought". He says he has them so people will leave him alone. Then he sees these and buys them. Now, he won't have CERTIFIED glasses, but at least he isn't wearing sunglasses or something stupid.

LSRFAQ, you know damn well how many people are on this forum and how many people browse it, buy stuff, and never bother posting, or only post a few times. How many of them do you think actually bought glasses, let alone expensive OEM glasses? Think about these things before you run your mouth off at someone sharing some layman test results. It comforts me that someone seeing this who wouldn't buy glasses anyways, might buy these and at least be safer than without.

Key word is still *safer*.
 

vk2fro

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With the femtosecond whatsit laser at 150kW Steve, I think the grad student would have recieved instructions on its use, tutorial and testing in saftey and be supplied with certified glasses by the facility that owns the laser. I highly doubt in this world of litigation, that the student would be able to wear his/her own goggles. Test them mabye, in a similar fashion to the OP, but definaly not be allowed to be a guinea pig with them on around a laser of that calibre.

As for the OP, thanks, I need a few more pairs of laser goggles around the house. And my friend is nagging me for his laser and I wont give it to him until we have goggles for him. :)

edit: LOL @ Lotus_Darkrose's sig - I remember that convo with GBD! :)
 
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Ninja

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I need a half a dozen pair now that I own my my 1st laser. Hopefully it will never accidentally flash into anyone's eyesight.
 

vk2fro

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Now we need to find a source for inexpensive reliable glasses for red lasers. Especially with the 1/2 watt Mitsubishi diodes, as they could do some serious damage, especially if we work out a way of taming the fat beam.
 

tsteele93

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Now we need to find a source for inexpensive reliable glasses for red lasers. Especially with the 1/2 watt Mitsubishi diodes, as they could do some serious damage, especially if we work out a way of taming the fat beam.
True,

I have some cheap ones but they are DARK and part of their method seems to be to block most visible light! I'll try to find a link. I think the brand was T-Rex and they came with a NICE case and cost just over $8. Seems like they blocked 600-700nm.

They are dark blue.

EDIT: Here is a link that may be useful...

http://www.aliexpress.com/store/312706/209933257-363238789/High-Quality-Laser-Safety-Eyewear.html
 
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vk2fro

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I've just decided to bite the bullet and get OEMS in the groupbuy - ARG for green blue and RB2 for red :)
 

tsteele93

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I've just decided to bite the bullet and get OEMS in the groupbuy - ARG for green blue and RB2 for red :)
Great choice! If you can afford them then by all means get them!

Were you able to get some for any family/friends who you might be showing your lasers off to in the future?
 




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