home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!spool.mu.edu!uwm.edu!cs.utexas.edu!ut-emx!ccwf.cc.utexas.edu
- From: foegelle@ccwf.cc.utexas.edu (Michael Foegelle)
- Newsgroups: comp.sys.apple2
- Subject: Re: Why didn't my apple need a screen saver?
- Message-ID: <86430@ut-emx.uucp>
- Date: 11 Jan 93 01:28:11 GMT
- References: <a739213@pro-cynosure.cts.com>
- Sender: news@ut-emx.uucp
- Organization: The University of Texas at Austin, Austin TX
- Lines: 28
-
- 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
- --
- -------------------------------------------------------------------------------
- Michael Foegelle | | foegelle@ccwf.cc.utexas.edu
- ____________ | You want it | foegelle@utaphy.ph.utexas.edu
- | | GEnie: M.FOEGELLE2
- University of | WHEN? | Wunderland BBS (512) 472-0544
- Texas at Austin | | 14.4kbaud, v.32/bis: Sysop
-