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FrozenGate by Avery

Shades For Blue And/Or Violet Lasers?






Not sure about how effective they are on the violets, but for blue you can usually use a pair of green-blocking glasses. WL lasershades for green will do well enough against 473nm unless you're working with very high powers. In fact, the free goggles that came with a purchase of a Spyder I were the same for green and blue versions.
 
I think that the NoIR ARG goggles will protect extremely well against the Blu-Ray and Blue DPSS wavelengths, and they have a high VLT. You can get a pair for $50 at NOVA. These will filter out the ~405nm wavelength at an OD of around 6.5. This is much more than enough protection at ~10-20mW of 405nm. However, you might be able to see the fluorescence caused by the Blu-Ray wavelength.

However, I think that the older style ARG (now called AL2/AL3) goggles (red with slight orange tint) will provide good protection as well. NoIR's graph shows an OD of slightly over 2 at the 400nm region. The VLT isn't as high as the ARG goggles that NOVA sells, but I don't think that with only up to 20mW or so that it will matter much.

I have a pair of goggles similar to the ones that NOVA sells and a pair of the AL2/AL3 goggles, and I should have a Blu-Ray laser built within a week. I'll let you know which one I think is better suited for the job. :)
 
That would be great since I am about to start a blu-ray project also and am in need of some goggles that will work for the violet beam.
 
Goggles are not as necessary for BR as for high power reds or greens, simply due to the fact that they are not nearly as high power. However, if you want to push your BR, it may be a good idea. I wouldn't think they were an essential part of a BR kit though.
 
Leet speak BR=Blu-ray ;D MSN trash talk is no good here when newbies view this for the first time... It's like Techlasers=TL, some people call me TL and I hate it, I'm Timelord not TL so can we dispense with the lazy typing communications please for the continuity of the greatest forum on earth ;) :D

Thank you very kindly Timelord :)
 
LOL, Timelord!

Abray - as BlueFusion suggested, unless you plan on doing any close up work (like burning) with your Blu-Ray laser, goggles probably aren't necessary. However, if you are in any situation where you could possibly receive a reflection or direct hit, you'll need goggles.

My Blu-Ray project is a bit behind schedule. I've done most of the work and was aiming to finish tomorrow, but I might have to wait until next weekend to finish up.

I have tested the three pairs of goggles with a blue LED (wavelength of ~470nm) and the NOVA style shades absorb the most light. The LaserShades absorbed the least amount of blue light. I'll have to wait until I have my Blu-Ray going to do a real test, but I suspect that the results will be the same.

That said, all three goggles should allow you to see some of the fluorescence from the Blu-Ray beam hitting various objects. Don't be alarmed, because the goggles are actually filtering the 405nm laser light. The fluorescence is diffused and fairly safe to view.

I'll get my Blu-Ray finished ASAP and test out the goggles.  ;)
 
Thanks for the input yuip.

I am still deciding whether to get those goggles or these: http://www.noirlaser.com/filters/exc.html

Those were the ones Daedal recommended. they have the most protection for wavelengths 190-398, but they still have a significant amount of protection for 405nm (blu-ray). these would also be excellent for working with UV lasers.

I'll probably go for the cheaper pair as I am on a tight budget.
 
No problem, Abray. :)

Yes, according to the graph those aren't too bad. They should protect at OD 3-4 according to the graph. And for $40 the price is right. They also have a very high VLT, since they are clear. If they do protect as well as the spectrometer plot shows, these could be the perfect goggles for 405nm lasers. One downside is that the fluorescence might be too bright to look at with these goggles, since all of the fluorescence will pass through them. :-/
 
BlueFusion said:
Goggles are not as necessary for BR as for high power reds or greens, simply due to the fact that they are not nearly as high power. However, if you want to push your BR, it may be a good idea. I wouldn't think they were an essential part of a BR kit though.
Click to expand...

These blu-ray diodes go 10-20mW+. That's enough to recommend goggles IMO. Would a quick pass over your eye likely blind you? No. Could it? Hell yes. Not to mention the carcinogenic effects of UV...
 
I agree with what pseudo said...

also, one word...

cataract.

Dont mess with UV, it isnt just the fact that its a laser...think about the wavelength also. Would you look at a UV fluorescent tube? I know i wouldnt.
 
haha yes. All those reasons are good enough for me to order goggles!!!

still not sure which ones to get though....

edit: I just looked at the nova laser shades, and have decided on them. they are just $10 more, but they provide protection for UV, violet, blue, AND green. THAT is a pretty good deal. I'll take it!!!
 
Good choice, Abray. Against the blue LED, my pair of goggles similar to the NOVA pair provided outstanding protection; all of the blue light was absorbed. As far as green protection, you can't get any better for $50. They make the dot of a 100mW greenie look like a faint little orange dot that is so dim you can't see it from 10 feet away. :o

pseudo and chickenfish make very good points. A 10mW laser can give you permanent blind spots, even with a quick flash across the eye; and this near-UV wavelength could potentially cause cancer and/or cataracts.
 
hey, just realised I HAVE UV goggles... lol. my prescription glasses are UV sensitive so when you go outside they tint darker. doubt I'd trust it to work instantly though... :P
 
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