this is odd.

off topic. my blacklight doesnt seem to detect ‘stains’ like they do on CSI, what am i doing wrong?

“off topic. my blacklight doesnt seem to detect ‘stains’ like they do on CSI, what am i doing wrong?”

Umm.. cleaning your carpet? (sorry, I couldn’t resist) :p

Seriously, you may not have a bona-fide “blacklight” , or the ‘stains’ you’re testing aren’t phosphorescent. Try testing it out in the bathroom – most soaps and detergents, among other things, show up *real* bright under UV.

I have a high powered blacklight. ment for looking for scratches on contact lenses.

and yah, mistery stains glow bright.

even if somone had to fix the paint on a wall or
remud dry wall, lots of unexpected stuff shows up.

are you using the cool orange glasses like they use on CSI? cuz i think they are req. to see blood or bodily fluid.

The orange plastic absorbs the UV light. That’s why most of the work done in Intel and AMD’s fabs is under orange light. Any stray UV would wreak havoc on the photosensitive resists used.

#2: don’t test it on carpet, test it on scorpions, see: http://johnbokma.com/pet/scorpion/detection-using-uv-leds.html , http://johnbokma.com/mexit/2005/07/04/ , and http://johnbokma.com/mexit/2005/08/22/

When people visit us, I often show them glowing scorpions walking in the dark.

Holy crap! $3800 dollars for parts alone!
He must have access to all the CNC equipment etc. since there’s no mention of any costs involved with that.

only $3800 shipped not including the assembly of it, more like $3700 when you discount the stuff not used. I’ll take 3 :). Though why the yellow and white leds when just red green and blue should be all thats needed.

Oh yeah, some douchebag put this on digg without crediting you.