Waterproof Lazerer question

[AlejandroSk]

Hey.. i have bought this laser:
LZSK - 445nm 500mW Focusable Waterproof Blue Laser Pointer
but how many meters can i submerge the laser?

other question..
i bought this pair of goggles
T-REX Laser Safety Goggles for 532nm / 445nm Laser
are they ok?

 

[Sigurthr]

Most waterproof lasers are not intended to be submerged deeper than one meter. I know, it kinds sucks if you had intended on diving with it. However you can usually find water tight clear plastic containers to put it in, the hard part just becomes turning it on or off then.

I have the Blue T-Rex goggles which are intended for red/yellow lasers and they are NOT certified and do NOT have the OD rating they claim to have. They're fine for <200mW though as long as direct exposure is never a possibility. It is likely that the RED ones you bought are similar.

The cheapest certified "is what it says it is" laser goggles available are from Survival Lasers and are called Eagle Pair. The basic model is ~$40 and protects from direct exposure.

 

[InfinitusEquitas]

The cheapest certified "is what it says it is" laser goggles available are from Survival Lasers and are called Eagle Pair. The basic model is ~$40 and protects from direct exposure.

Eagle Pair are not certified, hence the price difference vs OEM.

They are good goggles... just not certified.

 

[Sigurthr]

My mistake, I thought the "CE OD4+ 190-540nm" engraving on the lenses meant they were indeed certified.

Edit:

The manufacturer website claims they have EN207 certification, which means that if they are not lying, the glasses are certified. "CE Marked, GJB1762-93, EN207/208 and AU/NZ Standards"
http://www.eaglelaser.cn/En/GoodsView/704.html
http://en.wikipedia.org/wiki/EN_207

Also, on the Survival Laser Site:
"Eagle Pair® brand protective laser safety goggles for 190-540nm wavelength. These goggles have exceptional visible light transmission (rated at 50%) and yet protect to a level of OD 4+ (reduce the intensity of 190-540nm laser light by a factor of 10,000 or more), and are CE certified."

 

[AlejandroSk]

Omg, now im confused..
The T-rex goggles are not secure then?

 

[Sigurthr]

T-Rex goggles are better than nothing, but certainly not full protection, by far.

Whether or not the Eagle Pair are certified... they are still damn good protection for 1500mW and less.

 

[InfinitusEquitas]

My mistake, I thought the "CE OD4+ 190-540nm" engraving on the lenses meant they were indeed certified.

Edit:

The manufacturer website claims they have EN207 certification, which means that if they are not lying, the glasses are certified. "CE Marked, GJB1762-93, EN207/208 and AU/NZ Standards"
EP-3-Beijing EagleView
EN 207 - Wikipedia, the free encyclopedia

Also, on the Survival Laser Site:
"Eagle Pair® brand protective laser safety goggles for 190-540nm wavelength. These goggles have exceptional visible light transmission (rated at 50%) and yet protect to a level of OD 4+ (reduce the intensity of 190-540nm laser light by a factor of 10,000 or more), and are CE certified."

I can claim to have a 12" schlong when I'm picking up a girl... alas I'm a couple inches short:shhh:

1. Afaik Eagle Pair are not certified.
2. Craploads of chinese products are knockoffs, and make completely false claims.

A good knock off is still a knock off... in this case of OEM goggles.

T-Rex goggles are better than nothing, but certainly not full protection, by far.

Whether or not the Eagle Pair are certified... they are still damn good protection for 1500mW and less.

Yes they are.

Omg, now im confused..
The T-rex goggles are not secure then?

No, they are crap. Get at least eagle pair from survival laser, links in my signature to some other goggles as well.

 

[Sigurthr]

I can claim to have a 12" schlong when I'm picking up a girl... alas I'm a couple inches short:shhh:

Aye, but that inaccurate claim won't cause potential loss of vision... or will it? :na:

Haha, I gotcha. I'll stop referring to them as certified, but I'm sure you can see where I was coming from in saying that they were. The combination of them stopping a 1300mW beam dead and claims on both the manufacturer and retailer sites saying they are certified was enough to fool me.

It would be interesting if one of our members had the facilities and equipment to determine if they really do pass certification or not though.

 

[Fretwrecker94]

Just adding my findings here. My T-Rex Goggles for my red lasers dropped a 260mW laser down to 22mW. Obviously 22mW is bad for your eyes and a direct hit is (very likely) devastating at anything over 5mW, but I'd still say they're pretty good beginner's goggles... if you're not planning on shining them in such a way that it will be highly reflected.

But all in all get some really good goggles...