Newsgroups: comp.robotics
Path: brunix!uunet!uunet.ca!cognos!faraghec
From: faraghec@cognos.com (Chad Faragher)
Subject: Distance sensors
Message-ID: <1992Oct9.150722.20994@cognos.com>
Organization: Cognos Incorporated, Ottawa CANADA
Distribution: na
Date: Fri, 9 Oct 1992 15:07:22 GMT
Lines: 3

What kind of devices are there for measuring distance to solid objects.
Video cameras use some sort of infrared system for autofocus.  I would
also be interested in sonic or radar techniques.
