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Old 05-24-2008, 01:46 AM #1
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Default Cheap low power protection?

Well I am very P O'ed because I took a lot of time to write out a well written and thought out post, but I had a link in at and this Fricken URL posting block made me lose the entire post, so this ones going to be very short and poorly written. Deal.

3D glasses!
JK

Story I dont want to re-type, found laser enhancing glasses. Makes world look like doomsday.

Comes with this. Its cheap. Glases are durable( if it makes you sleep better at night, ANSI Z87.1 spec ) and provide good coverage.


Testing.
Laser on wall, then same thing with glasses in front of it.


Shining freely, then shining through glasses.


Are these safe for my applications, which would be shining in house, and the occasional attempt at burning something? Undoubtedly they cannot be used for high-powerer, but this is only the DX True 30mW green.
( thanks cold for upping my posts!)


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Old 05-24-2008, 04:03 AM #2
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Default Re: Cheap low power protection?

Interesting.
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Old 05-24-2008, 07:53 AM #3
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Default Re: Cheap low power protection?

It looks to block out green fairly well. I take it there was no documentation that came with the laser trac that specifies the OD value and wavelength range of the goggles? Does that lasel trac use a green laser btw? Usually tools like that have a red laser.
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Old 05-24-2008, 11:35 AM #4
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Default Re: Cheap low power protection?

i would better buy a goggle that designed for lasering...
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Old 05-24-2008, 03:50 PM #5
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Default Re: Cheap low power protection?

I believe someone asked about this a long time ago (like last year) and people said they wouldn't work for high powered lasers IIRC. But you don't really need goggles for a DX 30 as long as you watch where you're pointing it at. So if these goggles can't protect you from a high powered green, then they're pretty much useless.
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Old 05-25-2008, 12:59 AM #6
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Default Re: Cheap low power protection?

Quote:
Originally Posted by Petrovski
It looks to block out green fairly well. I take it there was no documentation that came with the laser trac that specifies the OD value and wavelength range of the goggles? Does that lasel trac use a green laser btw? Usually tools like that have a red laser.
It uses a red laser. The point of these goggles is to block out all wavelaengths other than the lasers, so it should make the beam more visible( less light to interfere). WHen you shine a red laser through it, it doesnt dim it down at all.
Quote:
Originally Posted by chido
I believe someone asked about this a long time ago (like last year) and people said they wouldn't work for high powered lasers IIRC. But you don't really need goggles for a DX 30 as long as you watch where you're pointing it at. So if these goggles can't protect you from a high powered green, then they're pretty much useless.
I agree that it most likely has no function for higher powered lasers, but what got me thinking was( from another thread)...
Quote:
Originally Posted by Razako
2-Don't look at the dot without goggles unless you are around 20-30 feet from the target and don't shine it at anything reflective.
3-You don't need safety goggles for a 30mw as long as you are careful and don't do anything stupid. *It might be a good idea to get them now because you will probably want something with more power in the future. *Also without goggles you can't safely do much other than shine the laser around outside and look at the beam.
5-A 30mw laser probably won't be lighting matches. *You might be able to pop balloons with fresh batteries if you got a good laser. *Btw you shouldn't attempt either of these unless you buy goggles.
Most people wouldnt spend the $50 for a pair of quality laser glasses for a DX greenie, and a good pair would most likely have an OD value so high the dot would be invisible. Do you agree with what Razako has said?
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Old 05-26-2008, 02:18 PM #7
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Default Re: Cheap low power protection?

Quote:
Originally Posted by Maelstrom
It uses a red laser. The point of these goggles is to block out all wavelaengths other than the lasers, so it should make the beam more visible( less light to interfere). WHen you shine a red laser through it, it doesnt dim it down at all.
Ah right. I read over the word 'enhancement'. Still, it would be nice to know the OD value for green for your goggles. Otherwise all you have is a visual estimate. If you have a laser power meter, you could calculate this OD value for 532nm yourself:

OD = log(attenuation factor)

Quote:
Most people wouldnt spend the $50 for a pair of quality laser glasses for a DX greenie, and a good pair would most likely have an OD value so high the dot would be invisible. Do you agree with what Razako has said?
I think Razako has a valid point when he says that you shouldn't attempt to burn/experiment with your laser without goggles. Usually that involves looking at the dot at close range, not something you'd want even with a 'mere' 30mW greenie. In a few days I'm expecting my new OEM AL2 goggles for 532nm. They have an OD value of 2+ for that wavelength. If you like, I could post some pics of how the dot of my ~20mW opto looks like through those goggles.
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Old 05-26-2008, 04:43 PM #8
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Default Re: Cheap low power protection?

That would be great.
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