Re: Why didn't my apple need a screen saver?

[foegelle@ccwf.cc.utexas.edu (Michael Foegelle)]

In article <a739213@pro-cynosure.cts.com> dig@pro-cynosure.cts.com (Doug Granzow) writes:
>mmelez@vax.clarku.edu writes:
>
    (On screen burn in...some stuff removed..)
> This problem
>happens a lot in electronics stores where they have a video camera hooked up
>to a TV so customers see themselves.  Often the people will look like ghosts
>because the background has been burnt in.  
  
  That's not a very good explanation there because it is typically the CAMERA
that has had its picture tube suffer from burn in, not the monitor.  Too much
light can cause electronic erosion of the detectors in the camera just like the
electons erode the phosphor on a picture tube causing the familiar 'burn in'
we're discussing (which btw, can often be seen even when the monitor is OFF
if the erosion is bad enough.  This is the case on the HP b&w monitor sitting
on the desk behind me..).  Now the more modern CCD cameras that make up the 
bulk of the new home minicams are less likely to be susceptable to the same
kind of 'burn in' since they do not use picture tubes.  
 

Michael Foegelle
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