Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!utgpu!water!watmath!clyde!cbosgd!ihnp4!ptsfa!ames!think!bloom-beacon!mit-eddie!rutgers!princeton!phoenix!pucc!RAJ
From: RAJ@pucc.UUCP
Newsgroups: rec.aviation,sci.electronics,rec.audio
Subject: Re: Noise-cancelling microphone
Message-ID: <2881@pucc.Princeton.EDU>
Date: Wed, 3-Jun-87 14:38:27 EDT
Article-I.D.: pucc.2881
Posted: Wed Jun  3 14:38:27 1987
Date-Received: Sat, 6-Jun-87 04:11:27 EDT
References: <429@rlvd.UUCP> <19549@sun.uucp> <1027@mips.UUCP>
Reply-To: RAJ@pucc.Princeton.EDU
Organization: Princeton University - Princeton, New Jersey
Lines: 29
Xref: utgpu rec.aviation:1493 sci.electronics:696 rec.audio:1561
Disclaimer: Author bears full responsibility for contents of this article

Arrgghh!  Sorry about the previous edition of this followup.  The editor
slipped it onto the net.  I canceled,  but no  doubt some of you already
have received it. Anyway.
 
In article <429@rlvd.UUCP>, kr@ken.UUCP (Ken Robinson) writes:
>In article <2780@pucc.Princeton.EDU> 6062871@pucc.Princeton.EDU writes:
[regarding a lens that would improve the off-axis resolution of
telescopes and the human eye]
>>I'm skeptical because... the human eye's resolution is best for images
>>that are focused on the fovea, a small circle at the center of the
>>retina that has a high density of... cone cells. Outside of this area,
>>the density is lower, so the device won't do much good.
>In fact large astronomical telescopes are used to record on *film*,
>so that your comment on the small angular field of view of the eye,
>while true, is not relevant.  Schmidt telescopes do indeed have a
 
This is what I  get for quoting too little of the  original article in my
posting (from  account 6062871).   Your point  about telescopes  is quite
correct,  but the speculation was  about correcting the peripheral vision
of an  otherwise unaided human  eye,  in which  case I think  my original
objection stands.
   Interesting note on this,  recalled from  a Scientific American from a
year or  so ago:  to  improve the  realism of aircraft  flight simulators
without overtaxing  the computer driving  the simulator,  they  track the
pilot's eye,  and  a detailed picture is projected only  in the direction
the pilot  happens to  be looking in.   The rest of  the picture  is left
rough,   because the  pilot can  only  see that  with his  low-resolution
peripheral vision.  I think these are experimental simulators for fighter
pilots.