Re: spots and dots and UVBL solarplates

[Jon Lybrook <jon@terabear.com>]

SusanV wrote:
> Right?  In fact, Jon, you say that point light source is important,
> but doesn't using the kreene plastic negate that?  It's quite milky in
> it's translucence, so acts as a diffuser.  
Good points Susan.  I'm not sure the Kreene diffuses the UV light the 
way it does visible light, however.  It's designed to be used in this 
process, and my sense is it doesn't change the quality of the light, the 
way the different kinds of bulbs do.   My guess is it passes right 
through the stuff.   Anyone else know anything about how mylar or Kreene 
might affect transmission of UV?

I'm quite convinced, along with Keith Howard, David Hoptman and others 
that UV isn't as good for poly plates as a point source -- Amerigraph, 
Olec, or our good friend Apollo.  You can get good results, but it is 
more problematic - especially when going bigger.

Jon