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- Xref: sparky sci.electronics:22336 rec.games.programmer:5342
- Newsgroups: sci.electronics,rec.games.programmer
- Path: sparky!uunet!uunet.ca!imax!dave
- From: dave@imax.imax.com (Dave Martindale)
- Subject: Re: Sort of a Joke - sad though...
- Message-ID: <1993Jan10.041401.18088@imax.imax.com>
- Organization: Imax Corporation, Mississauga Canada
- References: <tayloe.726340169@geode9> <1ifj42INN7hq@hp-col.col.hp.com>
- Distribution: na
- Date: Sun, 10 Jan 1993 04:14:01 GMT
- Lines: 14
-
- cab@col.hp.com (Chris Best) writes:
- >
- >I still suspect that locating the "flying spot"
- >might be a bit difficult though, unless all three
- >CRTs are perfectly synchronized.
-
- Of *course* all three CRT's are perfectly synchronized - they are displaying
- a picture that arrives as a single video signal. Any error in synchronization
- of the three spots on the projection screen will be visible as a colour
- fringe (bad colour convergence).
-
- So, if the projector provides a decent image on screen, then the three
- spots have to be in the same spot at the same time, providing a single
- target for the light gun.
-