Best inexpensive 532nm / 800 IR range goggles

[fixorater]

I have 3 greenie pointers. One excellent safe one from AtlasNova, one cheap ebay one rated at around 50mw that no doubt has poor or no IR filtering and another cheap 50mw coming from dealextreme that I'll bet has terrible filtering too.

While I'm concerned for the safety of my eyes- I cannot afford to pay $250 bucks for safety goggles. My research into inexpensive ones such as the ones wickedlasers offer gives me the impression that they shield against the 532nm green light but not against the IR coming through. Anybody have recommendations on a $50-150 solution that actually works?

My retinas thank you in advance for any assistance you all can give me.

 

[Q777]

I have seen these mentioned before http://www.spectronika.com/Safety.html EUR 60

I not sure what issues there are ordering, They have no online store. nor am I sure of there quality

 

[Aseras]

you can get cheap 532 protection. cheap IR and 532 is another story.

your best bet ( and probably only ) is leftover blps goggles from the us military. you MUST make sure you get a pair with the class4 lenses to have protection.

Dark Brown: OD => 4 at 532 nm (frequency doubled Nd:YAG laser wavelength), OD = 4 at 694.3 nm (ruby laser wavelength), OD = 4 at 1064 nm (NdYAG laser wavelength), markedly attenuates all colors, especially blue, may be marked with "S3" on the lens and is sometimes referred to as the "3WL" or "Class 4" lens, military NSN # 8465-01-416-3210

see this thread for details:
http://www.candlepowerforums.com/vb/showthread.php?t=148181

unfortunatly the group buy failed on the part of some CPF'rs undercutting us and a lack of supply or true laser protective goggles, most "BLPS" were only the clear or gray.. and crummy pair of sunglasses at best. almost noone had either the green or brown lenses for the blps they were offering.

 

[fixorater]

Thanks for the advice. I'll see if I can't find someone who has these BLPSs.

 

[stevetexas]

I know you're looking for goggles, but you may very well be able to install an aftermarket IR filter on the laser itself. I have some from optics online http://www.optics-online.com/irc.aspI use the IRC 21 and IRC 30.

 

[Aseras]

the main reason i was interested in the blps was for spectators of my "big scary laser" I have a couple pairs of $400+ glases for those of us who have to work on it. It's a ND:YAG with a 532nm rated output of 5+watts. I also have the ability to split the beam before for an output of 12 watts 1064 and I can also output ~1-2 watts of 355.

I have yet to test the 1064 or 355 harmonics. infact I have yet to really use the 532 at full power.

 

[fixorater]

So I've won an eBay auction on a BLPS set that supposedly includes the needed Class 4 attachment. Thanks again for the suggestion, I'll submit a review as soon as the goggles arrive.

 

[cage]

How much protection do welders mask or glasses provide against lasers? At least they would be cheap

 

[fixorater]

So I received my BLPS goggles from the ebay seller. The kit looks exactly like this: http://img.photobucket.com/albums/v326/tlb013/Three/ao6.jpg

The impression I'm getting is that with the dark brown and green laser insert included I'm okay for green / IR lasers? Within limits of course. Its hard to tell if the lenses I got were Class 4.

 

[Aseras]

they should be ok, just be aware those are the OLD ( and I mean OLD ) style glasses.

 

[Aseras]

How much protection do welders mask or glasses provide against lasers? At least they would be cheap

well they kinda work but they are not safe. some don;t block the right wavelengths, and the VLT is NIL so you can't see anything. your eyes dilate and when you peek out you are at a HUGELY higher risk of accidentally zapping yourself very badly.