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From http://www.rosco.com/spectrum/...

The first question we wanted to ask was – why blue? What does the color blue have to do with the austistic spectrum? The answer is that Autism Spectrum Disorders are almost 5 times more common among boys (1 in 54) than among girls (1 in 252). So, the color blue represents the boys diagnosed with Autism.

Represents boys!?!?! That sure sounds like racism, sexism and many other naughty "ism's", as well.

Shame on you, Autistic folks!

here are filter gels you can put over any illumination source -- they show a spectral curve for transmission for each of the filter gels
The idea is to block the range around 450-500nm, the blue-green, that affects the receptors controlling melatonin.

http://www.rosco.com/filters/roscolux.cfm

for example: http://www.rosco.com/images/filters/roscolux/15.jpg

These work ok without preventing using the touchscreens of an iPhone or a Palm PDA too.

here are filter gels you can put over any illumination source -- they show a spectral curve for transmission for each of the filter gels
The idea is to block the range around 450-500nm, the blue-green, that affects the receptors controlling melatonin.

http://www.rosco.com/filters/roscolux.cfm

for example: http://www.rosco.com/images/filters/roscolux/15.jpg

These work ok without preventing using the touchscreens of an iPhone or a Palm PDA too.

for covering existing lights, you can use the yellow polycarbonate drinking water bottles from Walgreen’s, etc (don’t let them overheat, though). For covering lights AND computer screens (and flashlights) you can get Rosco theatrical gel filters at any good photo or theater lighting supplier, for about $7 for a 20×24 piece. Deal! This is “Daffodil” http://www.rosco.com/images/filters/roscolux/310.gif That blocks most light below about 470nm (though you’d want to add their ultraviolet blocking filter as well, for any fluorescent light) http://www.rosco.com/

for covering existing lights, you can use the yellow polycarbonate drinking water bottles from Walgreen’s, etc (don’t let them overheat, though). For covering lights AND computer screens (and flashlights) you can get Rosco theatrical gel filters at any good photo or theater lighting supplier, for about $7 for a 20×24 piece. Deal! This is “Daffodil” http://www.rosco.com/images/filters/roscolux/310.gif That blocks most light below about 470nm (though you’d want to add their ultraviolet blocking filter as well, for any fluorescent light) http://www.rosco.com/

Nobody mentioned UFO's because a gobo with exactly the same image is available in Rosco's online shop. Find it yourself at http://www.rosco.com/us/gobos/index.cfm

Did you happen to contact Rosco about their paint lines? Considering that Rosco makes color filters for lighting, I bet they're more apt to have technical data about absorption for their paints. If you tell them you're experimenting with how different paints react to LED light, they might even get excited, since LED's are becoming more popular for theatrical applications.

http://www.rosco.com/us/index.asp

They don't have as much information about their paints online as the place you linked, but I'm sure you'd at least be able to talk to somebody there who knows about absorption spectra.

For those who are realy conserned with this I suguest getting a roll of UV Filter. For those who desire to have their fun and not die.

Actually, gels are totally plastic. And they *do* melt, but only if you use 'em wrong. The leading US manufacturer of color media used in the entertainment industry (film uses 'em as well) is Rosco Laboratories. Most of their line is now made from polycarbonate, but some is still polyester. The polyester stuff tends to be the lighter colors, since they absorb less IR.
Rosco has a pretty good technical run-down of the manufacturing process - http://www.rosco-ca.com/products/filters/filters-r oscolux.html#SPECIFICATIONS
I actually just ordered 26 sheets of gel the other day....most of which will be going into my Altman Sky Cyc units - which, with a 1000 watt lamp less than 8 inches away from the surface of the gel, will burn the dark blues and greens (Lee 120 and Rosco 94, I think) within a week. Bah.
More on-topic, though - color-correction filters cannot (despite what certain people in the General management department where I work think...) really make a fluorescent source look the same as an incandescent source. They don't have any magic that transforms the light - all they can do is remove some wavelengths from the emitted light, and thereby make its spectrum look a little smoother and closer to incandescent.
Basically, no matter what you add to a source (whether it be a cut of gel or that blue coating on those "Full Spectrum" lamps), all you're doing is *removing* wavelengths of light.

aggregated over millions of bulbs it might become somewhat iffy, environmentally, but last time I worked in theatrical lighting, we used to change the emitted colour of our (in many cases very blue/UV-rich) lamps using coloured filters ;-)

Of course, the absorbed energy reduces the efficiency gains of the LED somewhat as the gel heats up, but I tend to use gels to modify the basic colour of my lighting at home anyway. I like the energy efficiency side of compact fluorescents but I don't like the high colour temp, so the bulb lives in a shroud of (i kid not about the name) 'Light Bastard Amber' Rosco Supergel, which takes the blue edge off and pinks it up just a smidge. Once you start doing this you then tend to start switching for effects, of course, and Kelly Blue and Deep Moss Green are nice a while if you don't need too much brightness.

TomV