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How to protect eyes from white Lasers?

E

electricity440

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Lets say I build a white Laser using a green, red, and blue combined using lenses. If this Laser is relatively powerful, and could harm my eyes, how can I protect them? Would I take 2 different glasses and put them on top of each other? Or is there some other way?
 





G

glowing

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I may be wrong but if laser diodes emit white light as their LED counterparts do, they emit a good share of blue light so you should get a pair of glasses which protect you from the blue range of light and upwards. Really good glasses protect more than just one wavelength of light.
 
Speedy78

Speedy78

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First off lasers, for the most parr, are monochromatic. So onr color. Hubt arround for glasses that protect you from the wavelengths you are using. Havnt seen any but they may be out there.
 
LaZeRz

LaZeRz

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A block of wood over your face :)

Just kidding, a RGB laser doesn't emit light like an led. The three wavelengths are still there but we perceive them as only white. Two pairs of glasses will probably make everything extremely dark. An RGB laser wouldn't be focusable without a separate external lens so you wouldn't be doing much burning with it. Is this laser in theory handheld or a labby? Id use a beamdump and a secure mount if using it indoors. If two goggles doesn't work wear your pair that protects against blue and green light to minimize the risks.

You'll have to give us a description of this not yet built laser so we can give you the best advice. Just try to be as safety conscious as possible. Accidents are called accidents for a reason.
 
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DJNY

DJNY

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These give ya OK protection for many wavelengths, phoenix77 has/had them IIRC

Low OD Diodes/Visible/IR : ML7 - Style 34 High Tech Wrap Around




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ird_filter_style34.png


Graph-ML7.jpg
 
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DrSid

DrSid

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OD2 at red is nothing spectacular .. better then nothing though .. that's for sure ..
 
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hwang21

hwang21

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At least it offers protection at all three common wavelengths...
 
Rageypoo

Rageypoo

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I'm curious about this too, what is the best protection you can get from all 3? Or is buying one particular color the best protection you can get?
 
G

glowing

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Rageypoo said:
I'm curious about this too, what is the best protection you can get from all 3? Or is buying one particular color the best protection you can get?
Click to expand...

There are some expensive googles which protect from a wide range of wavelengths and at OD6+ levels (see Uvex for example).

However if you're on a budget Eagle Pairs aren't that bad :) Safety
 
T

Things

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Why would you need goggles for a white laser? If you want to burn with a laser, just grab a simple 445 or 405nm laser. Combining 3 different wavelengths just to burn is stupid, grab yourself some prisms or something and play with it instead. But if you insist ...

brick-glasses.jpg
 
ApexProxy

ApexProxy

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I agree with Things. If you are making a "white" laser you will not be using goggles to block it out since the whole purpose of such a laser is to be seen. Besides blocking out that many wavelengths will likely result in blocking out almost all visible light. The best goggles for that would be a regular pair of sunglasses and then wrap aluminum foil over the lenses.

Seriously though, if you want to burn buy a 405nm or a 445nm and then buy some goggles.
 
F

firelaser

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if you want to see the laser and are just going to point it outside you dont need goggles ,, but up close burning you do and just get a blue one for that
 
Sigurthr

Sigurthr

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The best way to protect yourself from a multi-wavelength laser? Use it SAFELY. Goggles are the LAST line of defense.
 
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