What goggles for white?

[Tikilaser]

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[Arayan]

White laser?????? Please explain better :thinking:

 

[weeba2kv]

Use black goggles , but ofcorce not a CD case lol

 

[udanis]

Okay first off it isn't a white laser it is a red, blue and green laser all converged on the same point. You need glasses that can block the elemental parts (red, green, blue) at their respective power. A lot of glass listings on sites will say what they are good for. For instance these would be OK for green and blue: Laser Glasses - UV to Green Lasers Protection 190-548nm :: Laser Safety :: Dragon Lasers

 

[qumefox]

Here you go

But seriously. Goggles that block red green and blue don't exist. You wouldn't be able to see through them at all.

You could probably have some coating shop coat a pair to block the specific wavelengths your dealing with but I imagine this would cost many thousands of dollars, not be durable at all, and have little power handling capability before said coatings burned off.

 

[udanis]

Also, would wearing green goggles over red goggles over violet goggles work?

In theory yes.

 

[comradmax]

Check out the OD graph on these from DragonLasers.

I am thinking of getting these for myself because I will have 405nm and 650nm lasers, and want one pair of goggles to cover it all. They dip in OD around 532 though, but still block at ~OD>1.

 

[udanis]

Well look at the graph:

OD 6 at 405nm
OD 3 at 532nm
OD 2 at 650nm

 

[Meatball]

Those goggles will let most of your cyans and oranges through the most, so as long as you can still still the white dot, and the power from the red, green, and blue that reaches your eyes essentially < 5mw.

I think those particular goggles look suitable. You might wait for more members to chime in before buying them. I'm not a goggle expert.

All I know is, laser light and eyes don't mix!

 

[Arayan]

Here you go

But seriously. Goggles that block red green and blue don't exist. You wouldn't be able to see through them at all.

You could probably have some coating shop coat a pair to block the specific wavelengths your dealing with but I imagine this would cost many thousands of dollars, not be durable at all, and have little power handling capability before said coatings burned off.

or you can use a pair of these... so you can see the beam

 

[comradmax]

At 75mW of 650nm through the ML7 you would be looking at 0.75mW with OD2. I think they would work for your white laser.

What are the wavelengths and the optical power of the 3 lasers in your white kit?

 

[Grix]

The ML7 goggles are very reputable, they are considered one of the highest quality goggles there is. They will work great for your need. OD2 is more than enought for red unless the red module is 500mW+.

 

[qumefox]

Yeah I didn't even know those goggles existed. I'm probably going to have to get a pair myself.

 

[Prototype]

But seriously. Goggles that block red green and blue don't exist. You wouldn't be able to see through them at all.

Actually, they do and you can see through them mostly well...everything's kinda brown. I will have to find the link again, they use glass filters and are expensive but worth it if you really work with serious lasers.


Edit: Laser Safety Filters - 00170 | Laservision

Filter Specs

OD 7+ @ 190-535 nm
OD 2+ @ 633-650 nm
OD 3+ @ 650-690 nm
OD 6+ @ 690-1300 nm
OD 8+ @ 1064 nm

 

[qumefox]

I know you only get one set of eyeballs, but $445.. ouch. I think i'll go with the ML7's for now in addition to the other pairs I already have. If I ever start dealing with multiwatt projectors, I might reconsider though. heh.

 

[Benm]

Well look at the graph:

OD 6 at 405nm
OD 3 at 532nm
OD 2 at 650nm

Well, OD2 is not all that bad in reality.

Considering the typical red diode laser does not exceed 300 mW in power output, these goggles would still reduce that to only 3 mW, putting the exposure result in class 3A.

Obviousy staring straight into a red laser with these glasses is not a good idea, but it would offer reasonable protection against accidental reflections and such.