Projection Surfaces

Ivan R. Judson judson at
Thu Oct 26 08:59:30 CDT 2000


The cheapest and easiest way to get up and running is just to project onto a
painted wall.  Even fairly dark looking (20-30%) grays will work well enough
to impress most people...

  -----Original Message-----
  From: owner-ag-tech at [mailto:owner-ag-tech at]On
Behalf Of Jim Farrar
  Sent: Thursday, October 26, 2000 8:21 AM
  To: Don Morton; Mark D. Johnson
  Cc: Jennifer Teig von Hoffman; ag-tech at
  Subject: Re: Projection Surfaces

  The Walltalker comes 5 foot wide and you order it in the length you need.
We use it in two nodes here at NCSA.  We have not had any problems with
erasing it, to this point.

  At 05:33 PM 10/25/00 -0600, Don Morton wrote:

    "Mark D. Johnson" wrote:
    > Don,
    >     We at USC are going the wallpaper route (WallTalker) to save space
    > well as money.  The three projectors that we are going to use have 2k
    > each and should give a very sharp picture.   This will be similar to
    > setup we saw in September.  I feel that having one screen with the 2
or 3
    > projectors merged together will give a cleaner appearance and keep the
    > from focusing on one particular screen.
    > -mark

    You all bring up good points, so I'll abandon the thought of 3 small
    bargain-basement screens.  I've considered the wallpaper route myself.
    Does anybody know just how wide this wallpaper is?  Has anybody had
    any problems with it not erasing completely after being used as
    a whiteboard?

    With our small room, our projection surface will be roughly 10',
    and I anticipate projector images of roughly 3.3' x 3.3'.  So,
    hopefully two strips of the wallpaper would do the job.  Still
    haven't made a firm decision on wallpaper though.  Other possibility
    is to just buy a 10' wide screen that pulls down over an existing
       Don Morton           
       Department of Computer Science       The University of Montana
       Missoula, MT 59812 | Voice (406) 243-4975 | Fax (406) 243-5139
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