General > General Technical Chat
Reputable Stores for UV Eye Protection?
G7PSK:
Plain glass stops UVB and UVC along with most of UVA, most welding suppliers will sell safety glasses that stop all UV for people working in areas where welding is taking place, that would be the first place I would try. I am not talking here about welding goggles or helmets just clear safety glasses.
Algoma:
Is this the product we're discssing?
Convoy S2 + UV 365nm
https://www.aliexpress.com/item/1005001652735866.html
... I think we're discussing protection for WAY above it's risk rating. UV protection is always good, but its only a 2W LED flashlight here.
Zero999:
Plain glass is quite transparent to UVA above 350nm, which is why it's used for blacklight tubes. Some plastics are better absorbers.
I agree eye protection never does any harm, even though this is fairly low risk.
Paul B:
Hi during my life i have worked with a number of different UV sources
from a simple UV recorder to UV lamps for water disinfectant
and yes in my youth i was aware of the therm called arc eyes from looking at ark welding so i was always Caucasus with ark welding and had protection
but it was a UV chart recorder that got me as working with it setting up the optics i gave myself a sun tan and UV blindness that took 3 days to recover
when working with powerful UV lamps i organised UV Glass and i asked the supply about the yellow tint on the glasses and was told by the suppler that plastic lenses attenuate UV
the plain plastic lenses wear just as good but customers preferred the ones tinted yellow as to distinguish between them and safety glasses
but please test them using your UV source and a UV meter as I totally agree with an earlier posting do not mess around with UV it will take both of your eyes at the same time
regards Paul 8) :palm:
AntiProtonBoy:
--- Quote from: Algoma on January 25, 2022, 09:06:29 pm ---but its only a 2W LED flashlight here.
--- End quote ---
It's not just "only a 2W LED flashlight", it emits 1000 mW radiant flux in the 365 nm UV spectrum, with a beam spread around 3 to 5 degrees. I put my hand in the way I can feel heating effects on the skin. Part of that is undoubtedly is caused by IR, but a much of that is cased by UV absorption. Incidentally, IR eye protection is another thing to consider as well when working with unusual light sources like these (the UV band pass filter I attached to the torch is also transparent to IR).
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