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- Newsgroups: rec.video
- Path: sparky!uunet!think.com!sdd.hp.com!cs.utexas.edu!usc!rpi!ncc1701
- From: ncc1701@madoka.its.rpi.edu (Mark Chadwick)
- Subject: Re: Laser projection TV - does it exist?
- Message-ID: <hzq3ac#@rpi.edu>
- Nntp-Posting-Host: madoka.its.rpi.edu
- Reply-To: ncc1701@acm.rpi.edu
- References: <86538@ut-emx.uucp> <1993Jan19.153421.11665@siemens.com>
- Date: Wed, 27 Jan 1993 16:07:50 GMT
- Lines: 22
-
- aad@siemens.com (Anthony Datri) writes:
-
- >Remember that that rate would vary across both vertically and horizontally
- >because of the changing angle between the beam path and the screen. I'd bet
- >that these kinds of optics would be very fussy.
-
- Yep! However, what we tried in or little experiement
- a few years back was storing the info in a frame buffer,
- and varying the read-back rate...that way, we didn't have to worry
- much about wierd problems with horizontal distortion. Vertical
- we solved to some extent similarly, but not to our satisfaction.
-
- >I would think that lasers by definition would produce a quite bright picture.
-
- Hmm..only if you stop scanning. When you're scanning the wall
- or your screen at a rate fast enough rate to reduce flicker
- to a bare minimum, you're NOT left with a lot of brightness (unless
- you're using an industrial laser, which we didn't have)
-
- --
- ---
- Mark "Emerson" Chadwick -- ncc1701@acm.rpi.edu chadwickmo@space.laafb.af.mil
-