Re: UV light outputs?
John Irvin Buford (jbuf@ix.netcom.com)
Sun, 14 Jul 1996 22:12:59 -0700
>My business partner and I have built a UV lightbox, using commercial
>grade, uncoated blacklight florescent tubes. It works great, but
>we've been having a "discussion" about the output of the tubes. He
>feels that the tubes have a "warm-up" time and ought to be on for at
>least 5 minutes before use. I put the box on a darkroom timer, so
>that it turns on at the start and off as the time ends. Now, I don't
>have a proper light meter to measure which way is better, but I'm
>hoping that one of you gentle folk out there can tell me if there's
>any kind of a differance in our methodology? Are there surges in the
>electrical output at the start of the timer, surges that would
>negatively affect the image? Do the bulbs "warm up" over time and
>sort of "stabilize" their output, or is it fairly consistant right