[sdiy] Black LEDs (was: Re: Rapid Electronics Oktoberfest)

[Samppa Tolvanen]

On Sat, Oct 11, 2008 at 5:42 PM, John Mahoney <jmahoney at gate.net> wrote:
>
> This would be problematic with normal human vision, but slightly less bad if
> you could see ultraviolet. :-)
>
> International note: A "black light" is what Americans call a lamp that emits
> UV. I don't know how universal that term is.
>

Well, here in Europe we are not as trendy - Square dancing isn't the
latest thing and we might even go to so-called "Discoteque" to spend a
night. I just wonder what those blueish and black tubes do.. I mean,
other than emiting visually perceivable light? Colours becoming so
vivid.. "a black light", right?

Samppa