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Just recieved a 50mw green laser- i have some questions

M

marketpantrylaser

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I just turned it on and shined it on a white piece of paper (dumb, i know) if i looked directly at it for a split second should i worry?

also, what precautions should i be taking with this laser? Im trying to be responsible.
 





JohnTheRipper

JohnTheRipper

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The dot itself is mostly harmless to look at, however looking into the beam or a reflection of the beam can cause eye damage instantly. Just don't shine it at anyone's eyes, windows, cars, planes or boats. Or mirrors.

And welcome to the forums!

You might want to get laser glasses for that laser, but as we don't know how much IR is coming out, I'll need a pro to give you more advice in that area.
 
Foshizzle45

Foshizzle45

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JohnTheRipper said:
You might want to get laser glasses for that laser, but as we don't know how much IR is coming out, I'll need a pro to give you more advice in that area.
Click to expand...

Everything you said was correct, except for the part where you said, "You might want to get laser glasses for your laser". lol

YOU MUST GET LASER GLASSES. You will hurt your eye's and i'm not telling you what might happen, im telling you what WILL happen. It is very easy to get a reflection from something metal or glass or even a shiny plastic. What color is your laser? Where did you get your laser from? These are important questions to figure out danger's, and proper mw output.

Since your laser is relatively low mw wise, I would look at these glasses I'm posting below.
Eagle Pair® 190-540nm & 900-1700nm Laser Safety Goggles

They are expensive, probably more then your laser even. But the bills for a damaged retina will be much more then the glasses.
 
M

marketpantrylaser

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Aug 28, 2011
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JohnTheRipper said:
The dot itself is mostly harmless to look at, however looking into the beam or a reflection of the beam can cause eye damage instantly. Just don't shine it at anyone's eyes, windows, cars, planes or boats. Or mirrors.

And welcome to the forums!

You might want to get laser glasses for that laser, but as we don't know how much IR is coming out, I'll need a pro to give you more advice in that area.
Click to expand...

Thank you so much for your reply. I am so glad this forum exists.

Regarding white paper... white reflects light so isnt the brightness of the laser damaging?
 
JohnTheRipper

JohnTheRipper

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Foshizzle45 said:
Everything you said was correct, except for the part where you said, "You might want to get laser glasses for your laser". lol

YOU MUST GET LASER GLASSES. You will hurt your eye's and i'm not telling you what might happen, im telling you what WILL happen. It is very easy to get a reflection from something metal or glass or even a shiny plastic. What color is your laser? Where did you get your laser from? These are important questions to figure out danger's, and proper mw output.

Since your laser is relatively low mw wise, I would look at these glasses I'm posting below.
Eagle Pair® 190-540nm & 900-1700nm Laser Safety Goggles

They are expensive, probably more then your laser even. But the bills for a damaged retina will be much more then the glasses.
Click to expand...

Those glasses won't protect from 808nm IR leakage, did you pay attention when doing safety research?
 
Foshizzle45

Foshizzle45

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JohnTheRipper said:
Those glasses won't protect from 808nm IR leakage, did you pay attention when doing safety research?
Click to expand...

I know, but it's quite rare to have enough leakage to do damage, I don't think there is a pair of glasses that cover every single wavelength, these cover most of them though, and the price is quite good also.
 
joshshermannn1

joshshermannn1

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532 doesnt leak 808nm it leaks 1064nm IIRC :)
532nm is an IR diode 1064nm being frequency doubled.
im sure someone is going to correct me.
 
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M

marketpantrylaser

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Aug 28, 2011
Messages
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Foshizzle45 said:
Everything you said was correct, except for the part where you said, "You might want to get laser glasses for your laser". lol

YOU MUST GET LASER GLASSES. You will hurt your eye's and i'm not telling you what might happen, im telling you what WILL happen. It is very easy to get a reflection from something metal or glass or even a shiny plastic. What color is your laser? Where did you get your laser from? These are important questions to figure out danger's, and proper mw output.

Since your laser is relatively low mw wise, I would look at these glasses I'm posting below.
Eagle Pair® 190-540nm & 900-1700nm Laser Safety Goggles

They are expensive, probably more then your laser even. But the bills for a damaged retina will be much more then the glasses.
Click to expand...

50mW 532nm Green Laser Pointer (Black)

thats the laser i bought. did not want to get the 200mw one because its way too dangerous.
 
joshshermannn1

joshshermannn1

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forgot :eek: sorry. i need to read up on frequency doubling again. :banghead:
the laser you got should have around 12mw of IR in it... someone did a review on a batch awhile ago
 
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Foshizzle45

Foshizzle45

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marketpantrylaser said:
50mW 532nm Green Laser Pointer (Black)

thats the laser i bought. did not want to get the 200mw one because its way too dangerous.
Click to expand...

After seeing a few video's, it's probably a bit under-powered, but that doesn't really make a difference, unless you wanted it for burning. I would stick with the glasses I posted before, It will work for most of the NM's of the spectrum, and it will allow you to be able to get a more powerful laser, but always use safety precautions.
 
M

marketpantrylaser

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Foshizzle45 said:
After seeing a few video's, it's probably a bit under-powered, but that doesn't really make a difference, unless you wanted it for burning. I would stick with the glasses I posted before, It will work for most of the NM's of the spectrum, and it will allow you to be able to get a more powerful laser, but always use safety precautions.
Click to expand...

cant you pop balloons with this? jw
if i recall correctly a friend of mine (who has since passed) bought it to test it out on them and it worked for him. it has something to dow ith the green wavelength.
 
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joshshermannn1

joshshermannn1

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probably not. i can pop balloons with a 50mw focused laser, though i dont have a ~30mw laser, if its not focusable, and doesnt have a very small beam diameter, no.
green is not a good burner :D 405nm (violet) in the best burner. sorry about your friend
 
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Foshizzle45

Foshizzle45

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marketpantrylaser said:
cant you pop balloons with this? jw
if i recall correctly a friend of mine (who has since passed) bought it to test it out on them and it worked for him. it has something to dow ith the green wavelength.
Click to expand...

The popping ability doesn't really have to do with the wavelength, It's basically all mw that matter. You could try for yourself if you would like, If it could pop a balloon, it would take a steady hand, and a dark balloon(or a bright balloon with a black dot drawn on it) I would like to know if it does. It may need a magnifying glass due to it have no focusing ability.
 
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