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Lazerer Beginner Goggles

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sceadwe

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Hi all,

I just received my first green 532nm laser today. It is the Lazerer LZCS 30mW 532nm. So far loving the laser but I also ordered Lazerer's cheap 12 or 13 dollar goggles that are supposed to protect against green light.

I know that the green laser will leak IR as well and my laser's spec sheet is showing 13mW of IR and 42mW of green w/out IR filter.

So my main question is, are these cheap goggles going to save my eyes at all? They seem to block out most of the light but I'm a bit paranoid as a noob to the laser hobby.

I appreciate your guys' help in advance.
 





I am still a noob on many things laser related but I feel more confident in laser related safety after spending a lot of time reading here. I also answered a question like this a few times just recently so I don't mind since no one has answered yet.

I think the consensus on here with IR at the amount you have is that you will be ok as long as you don't stare at the dot close range. This is usually what people do if they are trying to burn things up close with the laser and stare at the dot through the goggles while not aware of the invisible IR that is going right through their goggles and damaging their eyes.

Since your laser is not strong enough to burn things with I assume you will want it mostly to enjoy the beam. The IR spreads out faster than the green light apparently so if you point it at longer ranges the IR dot will be much larger than the green dot. Pointing at distant treetops etc. is safe to do as long as there is nothing that could possibly reflect the green light back into your eyes. Of course the beam will be invisible while wearing the goggles. It's always better to wear the goggles indoors to prevent from reflections and if you are VERY careful where you point it outdoors you can take the goggles off to enjoy the beam.

Also definitely don't point the laser towards your eyes even with the goggles on as the IR will still go through and also might not be entirely "contained within the green beam" as well. In addition if your laser ever stops producing green light NEVER look into the aperture because often the IR pump is still working fine and you will have just blinded your self with invisible IR. This extremely dangerous invisible light can sometimes look like a very dim red light or light red dot visible on the wall coming from a damaged green laser and even looking at this dot on the wall is very damaging to your eyes as well.

Hope this was helpful!

E.M.F. (A fellow noob) ;)
 
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aah crap, my 5mw ebay stopped working for a bit and if i stared into the aperture i could see a red light, then suddenly the green laser started working full blast and went straight into my eye. still cant read stuff properly, no visible blind spot but i can feel its there, have a litle trouble focusing
 
I am sorry to hear that daawood..

The veterans on here have recommended people go to the emergency room or see an eye doctor ASAP if this happens. Unfortunately you could have hurt your eyes as well by looking at the red light which is the IR. I'm not an expert by any means but it is always stressed on here that the faster you get to an eye doctor the better as they can give you something to help which will give you a greater chance of some recovery of damaged eyesight.

daawood123 said:
aah crap, my 5mw ebay stopped working for a bit and if i stared into the aperture i could see a red light, then suddenly the green laser started working full blast and went straight into my eye. still cant read stuff properly, no visible blind spot but i can feel its there, have a litle trouble focusing
Click to expand...
 
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goggles are good, but they sort of ruin the point of lasers, unless its a 1w+. you wont be able to see the beam or dot, so whats the point of having a laser anyways.
bit like having a blunt knife
 
I use all my lasers without googles to veiw the beam, OUTSIDE but indoors you will need to construct a beam stop if using class 3-4 lasers. The goggles are needed to see the dot, on most lasers, as the reflected light overloads your eyes, kinda like how you cannot make out the details of the sun. Also goggles are used for burning, you can look at a beam, you just don't want it reflected back in your face. I can turn a 2w laser on right now, in my house as long as I don't look at the dot and I make sure not to hit anything reflective, though, why play with the safety of your eyes. I have never seen a laser that viewing the beam will blind you, if I stair directly at a beam from a 2w laser 445nm its hard to focus blue and your eyes will strain and give you itchy scratchy eyes and a headache after a bit.
 
hmm, i dont have any blues atm. highest iv got is a lpc-826 guestimated at 300mw.
still, dont wanna buy eagle pair for these, going to be selling the build soon (when its done)
so dont really see much of a point in investing in goggles for a wavelength im not going to have for too long. still, guess it cant hurt, ill pick some up in a few weeks, just in case.

also i wanted to ask, , if you got say goggles to protect against voilet to green, and seprate ones protecting from 610nm to say 800nm, if you put both on at once, would you be protected from voilet to green and 610nm to 800nm?
 
Think about it.

Visible spectrum is 390nm - 750nm (about).

If you combine one set of goggles with another, you will be blocking off most of the visible spectrum.

At that point, might as well get these:

brick-glasses.jpg


If you look at more serious goggles, from companies like OEM, Thor, etc, you will see that the more wavelengths you are protected from, typically the lower your VLT - visible light transmission.
 
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