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405nm Eye Protection

Dvorhagen

Dvorhagen

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I was hoping someone could recommend some decent blu-ray protective glasses in the < $50 range. My first laser's a PHR-803T, outputting something like 100mW, which is great. Unfortunately, I spent all my money on the project and now I'm paranoid as hell about my vision, and don't really want to use the thing anymore until I have goggles. :cryyy: .

Also, what do people think about the dangers of looking at the laser dot at its focal point? In the absence of any risk of specular reflection or a direct hit, would something simple (like amber-yellow sunglasses) be sufficient protection? Would shining the laser through such glasses and visually gauging the beam's attenuation be a good-enough way to assess their efficacy?

I'm not trying to avoid buying goggles here, just wondering if there's a way I can be a bit safer in the meantime, while still making minimal use of my laser (as I'm pretty obsessed with it).

Thanks!
 





Moebius

Moebius

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Dvorhagen said:
I was hoping someone could recommend some decent blu-ray protective glasses in the < $50 range. My first laser's a PHR-803T, outputting something like 100mW, which is great. Unfortunately, I spent all my money on the project and now I'm paranoid as hell about my vision, and don't really want to use the thing anymore until I have goggles. :cryyy: .

Also, what do people think about the dangers of looking at the laser dot at its focal point? In the absence of any risk of specular reflection or a direct hit, would something simple (like amber-yellow sunglasses) be sufficient protection? Would shining the laser through such glasses and visually gauging the beam's attenuation be a good-enough way to assess their efficacy?

I'm not trying to avoid buying goggles here, just wondering if there's a way I can be a bit safer in the meantime, while still making minimal use of my laser (as I'm pretty obsessed with it).

Thanks!
Click to expand...

I bought a pair of 650nm OD4 glasses from this company for $29.
They arrived from China with a nice case in less than two weeks.
They kept me notified throughout the transaction.


Multiple Wavelength

good luck,
Chuck
 
Dvorhagen

Dvorhagen

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..And yes, I realize I should've posted this in "Safety and Legal Issues". Sorry!
 
cmak

cmak

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Moebius said:
I bought a pair of 650nm OD4 glasses from this company for $29.
They arrived from China with a nice case in less than two weeks.
They kept me notified throughout the transaction.


Multiple Wavelength

good luck,
Chuck
Click to expand...

whoa nice find! can you test these / post a review to see if these really are up-to-spec?

peace & thanks
-cmak
 
Tech_Junkie

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What the big deal between goggles is how long will they stop a direct hit from hitting your eye. The higher the OD the more it delays the beam. Glenn's glasses are a good alternative, but there is no OD (Optical density) ratting. So its up to the individual what they are OK with. As long as you respect the laser, and keep track of your surroundings, Glenn's goggles will work fine. If you want your kid to use them, or anyone else, you should get a certified pair. Keep in mind accidents can and will always happen.
 
Dvorhagen

Dvorhagen

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Well, I'm thinking of the glasses as a last resort. Mostly, I want to use them when burning and generally playing around with my PHR, so I don't expose my eyes to too much super-bright, "diffuse", near-UV stuff. I don't intend to ever do anything that might result in a direct beam hit, but at least if I do, I'll have the glasses. Something's better than nothing.

And I don't intend to let anyone else touch the thing :)
 
Tech_Junkie

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Keep in mind you cant put a price on your eyes, and reflection can be a bitch. You vision will not come back. Once the cones are damaged, they cannot be repaired. We have pros here that have caught a direct hit from time to time. Anyone using a high powered laser, anything over 5mw is high power, should always buy the best goggle they can afford.
 
Tech_Junkie

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Dude take a second to check the link he posted in the quote.

double-facepalm.jpg
 
kevinmassey

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some people use the same green laser safety goggles for blu-ray and i have a pair from wicked lasers. my yellow glasses i use while shooting skeet block more 405 than the green laser safety glasses. it would be interesting to see if these actually provide adequate protection from blu-ray. someone with an lpm should test this. theyre just your average yellow colored shooter safety glasses.

if they do you can probly find some at walmart or a sports store. and even if they dont put it below 5mW it will still provide quite a bit of protection maybe to use in the time it takes for your real goggles to get there
 
Last edited:
scopeguy20

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I have tested several, just by looking at them, one can't tell if the block enough 405nm, some do and some do not. -Glenn
 
Tech_Junkie

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kevinmassey said:
it would be interesting to see if these actually provide adequate protection from blu-ray. someone with an lpm should test this. theyre just your average yellow colored shooter safety glasses.

if they do you can probly find some at walmart or a sports store.
Click to expand...


I checked those out at Walmart. Says right on the back, "Not for use with lasers".
 
cmak

cmak

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hey does anybody with expeience with Nova Sports-Style Safety goggles ($50
from Nova, more from LG) know if they're really up-to-spec on their OD rating? If so, would they be sufficient for (careful and just-me) usage of:

a >225mW 6X GGW BR 405
a 95-125mW 532nm CNI-GLP
a >250mW 532nm CNI PGL-III-M

I know that the model/host is pretty irrelevant, but I just felt like stating it...

peace & thanks
-cmak
 
kevinmassey

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yea i kinda figured that but its better than nothing. still need somebody to test this with an LPM.

btw, the only 405 i have is 5mw so the only reason i use those glasses is because it makes fluoresing stuff stand out way more. i dont actually need them for safety
 
scopeguy20

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That would be closer to the truth, but,
1) you didn't verify if your laser is over spec.
2) 5 mW of 405 is more hazardous to eyes than 5 mW of 650 or 532 nm, please use care friend! -Glenn
 
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