Re: [ATM] Mike lockwood's flats page

[Mike Lockwood <melockwo@uiuc.edu>]

Hi,

 >> Mike L wrote:
>> My current light source is composed of two black lights.  The bulb 
>> numbers are F8T5BL.  F8 = 8 watts.  T5 = dimeter, in 1/8ths of an 
>> inch, thus the diameter is 5/8".  BL = black light.  This is NOT BLB.

Mark Holm wrote:
> Do your eyes a big favor.  Make sure your filter knocks down UV quite 
> strongly.  A big fraction of the mercury emission is up there in the UV, 
> and it is not good for your eye lenses or retina.

The lamp is enclosed in the top of my interference tester (no light 
leaks out), and must first pass through both a diffuser and green 
filter.  Then it passes through the two-way mirror and is reflected by 
the mirror on the way to the viewing point.  There has to be little, 
if any, UV getting to the viewing point.

Edmunds Industrial Optics has no warning labels on its monochromatic 
light sources, which use the same bulbs.

Why aren't there UV warnings on black lights?  Are they really 
dangerous?  Party-style black lights filter out the green emission, 
but they still let through the short wavelength stuff.

	Mike Lockwood


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