Uv B is not eye and skin safe. -Jerry
> On Oct 10, 2014, at 7:30 PM, Nathan McCorkle <[email protected]> wrote: > > you could try a UV-B (UVB for searching) 'reptile' bulb: > http://www.amazon.com/Exo-Terra-Repti-Glo-Fluorescent-Terrarium/dp/B00101GDIG/ref=sr_1_1?ie=UTF8&qid=1412993860&sr=8-1&keywords=uvb+reptile > > UV-B is 280nm-315nm: > https://en.wikipedia.org/wiki/Ultraviolet#Subtypes > > as for filters... umm, *scratches head thinking I should know this*... > dichroic mirrors come to mind but I don't know if they'll be cheap > > Apparently blacklights are coated in 'woods glass' which people use to DIY UV > photocameras, but this passes ~365-400nm so still too high. > > This page links to an ebay listing from Vermont that is selling a bandpass > for 325nm for $~45: > http://www.savazzi.net/photography/uvpassfilters.html > > http://www.ebay.co.uk/itm/310295977900?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 > > That page has lots of other links too, so you'll need to dig a bit. The > 'Asahi Spectra' company it links to seems like it has a good selection and I > imagine they would be cheap, but there's no prices and being from Taiwan > might not make it here for halloween. > >> On Fri, Oct 10, 2014 at 7:09 PM, Paul Stoffregen <[email protected]> wrote: >> I'm fiddling with a Halloween decoration idea that involves glow-in-the-dark >> material. I bought a couple cheap UV flashlights to illuminate it. Trouble >> is, they have quite a lot of visible blue light output. >> >> Does anyone know of a material that can pass the UV and filter out most of >> the visible blue? >> >> Or maybe an affordable UV blacklight that doesn't have a lot of visible blue >> output? >> _______________________________________________ >> dorkbotpdx-blabber mailing list >> [email protected] >> http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber > > > > -- > -Nathan > _______________________________________________ > dorkbotpdx-blabber mailing list > [email protected] > http://music.columbia.edu/mailman/listinfo/dorkbotpdx-blabber
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