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From: hultquis@unc.UUCP (Jeffrey P. Hultquist)
Newsgroups: net.periphs,net.research,net.graphics
Subject: volumetric displays
Message-ID: <2@unc.unc.UUCP>
Date: Sun, 1-Sep-85 13:54:59 EDT
Article-I.D.: unc.2
Posted: Sun Sep  1 13:54:59 1985
Date-Received: Thu, 5-Sep-85 06:41:18 EDT
Distribution: net
Organization: CS Dept, U. of N. Carolina, Chapel Hill
Lines: 17
Xref: watmath net.periphs:842 net.research:212 net.graphics:1073


  A book, published in '66, mentions a "volumetric display" and
describes such an animal in this way.  Suppose you took a fishtank
and filled it with some phospor with a non-linear excitation response.
You could then pass two lasers through this medium at half the 
required triggering intensity, and thus excite any point in this
volume by intersecting the beams.  The book continues to state that
no one had yet done this.  

  Questions:  In the past twenty years, has anyone tried to build 
such a device?  If so; who, when, where, how, and did they publish 
their findings?
				Many thanks.

PS:  Please mail and I will post a summary to the net.

			--- decvax!mcnc!unc!hultquis