From: Clay (wcharmon@wt.net)
Date: 11/27/02-10:07:41 AM Z
Jeff:
My Nuarc unit has a little aperture device above the integrator cell,
sort of like waterhouse stops on old lenses. The idea is to rotate
around to holes of differing diameters - smaller diameters admitting
less light of course. It sounds like you need to restrict the amount of
light reaching the photocell in some manner. Does your device have
something similar, or could you rig up something like that if it
doesn't?
Clay
On Wednesday, November 27, 2002, at 09:42 AM, Jeff Buck wrote:
> To Those Who Weighed In On Integrator Issues Recently: I got hold of
> an Olec "Olix AI 950." Having trouble calibrating it for my HID lamp,
> which is a 1000W metal halide lamp and is positioned 34" above the
> printing surface (from bottom tip of the massive lamp bulb). I
> positioned the probe on the printing surface looking up at the lamp.
> I then commenced the attempt to calibrate the integrator for this
> light source. No good. No matter where I set the probe dial (you
> rotate it back and forth to let more or less light reach the photo
> cell itself), the read-out numbers raced by like Seabiscuit. The
> numbers ran from 00.0 to 99.9 (or 000 to 999) in about a minute and a
> half. The manual says nothing about the capacity of the integrator to
> handle any particular maximum of light. Comments? -jeff buckels
>
>
This archive was generated by hypermail 2.1.5 : 12/17/02-04:47:05 PM Z CST