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Mail order suitable glasses for 50mW green?

Thinkcat

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Hello

I'd like to mail order protective glasses for me and the whole family. I need trustworthy and standardized glasses that a professional would use while working with class 3b equipment.

I need IR and green protection. But how dim should the glasses be? How strong glasses does one need to be safe with a) accidental short term exposure to 50mW green? Or b) direct continuous hit from a specular reflection? Or c) to be rescued 99,9% of the time from a direct hit by the blink reflex? Or d) to safely stare into the beam? I'm not planning to do the last, but would like to see the math.

I reside in Europe. I did some searches and found some reviews of recommended glasses. I am shortsighted and need prescription eyeglasses, and so do most of those for which I plan to buy protection at the same time.
 

Thinkcat

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I have been looking at Nova Shields Professional. I assume these are certified glasses. But these have OD 6 at 532nm, my wavelength of interest. Does it mean that these will pass one part in 1 000 000 of the light? So if I shine a 50mW directly into my eye, these will make it 50nW (totally safe) but will I be able to see the spot on a white paper anymore?
 

Thinkcat

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I assume I'd be happy with OD 2 or OD 3 glasses, thus lowering the 50mW to 0.5mW or 50uW, i.e. class II. But are there such certified glasses available anywhere for IR and 532nm?

Or is there any way to "certify" any of the available "toy glasses"? Someone with an accurate laser power meter and multiple devices with different wavelengths?
 
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Leodahsan

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if you want prescription glasses, YOU WILL NEED to order from a professional manufacturer (like jetlasers, novalasers, CNI, etc)
just my 0.01 cent :p
 




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