Re: correction re: lights

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From: Judy Seigel (jseigel@panix.com)
Date: 06/25/01-06:27:14 PM Z


On Sun, 24 Jun 2001, Eric Neilsen wrote:

> I beg to differ Judy, but the BL and BLB give out different amounts of
> light. The bell curves on these by several manufactures will attest to
> this. They both peak at or very near 360nm but the BL puts out more light,
> about 20% more as GE measures it using the BL as their bench mark.

Eric, perhaps I should have worded my comment (below) more carefully, but
my point was that the phosphor is essentially the same (not that I've
tested it, but that this is the mfr's info). The difference is that the
DARK BLUE GLASS sheathing on the BLB, cuts down on the total amount of
light, I suppose by eliminating ancillary wavelengths. The BL is therefore
FASTER, but my tests (admittedly casual) showed that the CURVE is the same
-- only the TIME is different.

best,

Judy

> > the (expensive) glass it's sheathed in permits only a narrow wavelength to
> > pass, so things get that glow in the disco. It will print whatever, but
> > with less light is simply slower about it, and lacking some other spikes
> > is probably a different "curve" --- maybe. But again, other factors and
> > ingredients affect that curve, too.


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