ENIO ALVES (enioalves@hotmail.com)
Wed, 16 Jun 1999 09:23:56 -0700 (PDT)
Hi Ken!
What's up!
I guess that's the same principle for electronical flash sourches,too!
The great difference is the xenon gas, which is rare and gives "daylight"
colors (around 5.500 K)
Big Hug!
Enio
PS - Your gift hasn't come until this very moment, but I'm still
expecting...
>I thought it may be helpful to describe how fluorescent bulbs work / emit
>light. Basically there is a mercury vapor arc that travels the length of
>the
>tube. Some one could look up what the spectrum of this arc is if
>interested.
>Phosphors are selected that absorb and re emit a different wave length of
>light. These are then coated on the inside of the tube. This allows for
>different colors or a "broad spectrum" lamp. There has been a comment on
>other lamps / newer technologies but , in general, the newer light sources
>seem to be very narrow in their spectral emission... for instance the high
>pressure sodium for street light that give off a wonderful orange color
><grin>.
>
>For a price (or quantity) bulb makers will tailor the spectral emission /
>balance to what ever you may want. If some one does know where the peaks
>of
>sensitivity are in the emulsion of their choice it may be possible to
>target
>that spectrum. Or is this straining at gnats?
>
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This archive was generated by hypermail 2.0b3 on Thu Oct 28 1999 - 21:39:37