night.hoodie
Enlightened
Lots of info and posts about various LED spectral ouput, but I've been taking for granted what the spectrum of an incandescent tungsten filiment is. "It's just like the sun!" But is it?
What I am curious about is the UV, and very specifically, if there is UV, is there germicidal UV-C 254nm output? Enough to sanitize like a mercury vapor lamp (that conveniently and coincidentally outputs light close to that range, which is ideal for germicidal purposes)?
Well, I know the filiment is surrounded by a glass globe, and there is also the glass flashlight lens, so the light must pass through at least 2 clear glass "filters."
There is an anacdote about world famous physicist Richard Feynman's presence at the Trinity Experiment. This story is how I first learned that UV doesn't go through glass. Feynman had so much faith in his physics that he sat in his truck during the detonation, and did not wear the dark UV-blocking goggles that were distributed to the witnesses.
What I see in online searches are the token spectral graphs for incandescent light. They're pretty generic. Has anyone tested the spectral output from, specifically, a Surefire incan? Maglite? I know some lucky CPF members have spectral analyzers.
Has anyone looked specifically at the incan flashlight spectum?
Was Feynman wrong? Is any UV-C escaping through the globe and the lens? Enough to zap microbes and ensure the water you're about to drink will not induce Montezuma's Revenge?
What I am curious about is the UV, and very specifically, if there is UV, is there germicidal UV-C 254nm output? Enough to sanitize like a mercury vapor lamp (that conveniently and coincidentally outputs light close to that range, which is ideal for germicidal purposes)?
Well, I know the filiment is surrounded by a glass globe, and there is also the glass flashlight lens, so the light must pass through at least 2 clear glass "filters."
There is an anacdote about world famous physicist Richard Feynman's presence at the Trinity Experiment. This story is how I first learned that UV doesn't go through glass. Feynman had so much faith in his physics that he sat in his truck during the detonation, and did not wear the dark UV-blocking goggles that were distributed to the witnesses.
What I see in online searches are the token spectral graphs for incandescent light. They're pretty generic. Has anyone tested the spectral output from, specifically, a Surefire incan? Maglite? I know some lucky CPF members have spectral analyzers.
Has anyone looked specifically at the incan flashlight spectum?
Was Feynman wrong? Is any UV-C escaping through the globe and the lens? Enough to zap microbes and ensure the water you're about to drink will not induce Montezuma's Revenge?