[comp.sys.next] Hundreds of books on an optical

justin@inmet (11/11/88)

Re: Dan Mocsny's Lady in the Boat

Bravo! What a marvelous way of making the point!

Now, what I'm curious about is: is anyone actually working towards this
stuff? I mean, it's seems to be obvious way to go (although my friend Alex
and I tend to argue about whether glasses or direct neural implants are
more likely...) But is anyone seriously thinking about it yet? I figure that
within the next 5-10 years, technology should have advanced enough to start
prototyping a crude version of this idea. Is anyone working on the
implications? For example, speculating on how to do textual input if, say,
speech recognition doesn't keep up with display technology? Doing away with
the keyboard paradigm in favor of simple, subtle finger movements? Figuring
what resolution one would need for an LCD to look decent at a 1/2 inch
distance? The sociological implications of computers becoming that portable?
This is fascinating stuff, and there certainly *should* be people thinking
about it...

(Followups should probably go to alt.cyberpunk, I guess; I'm on a notes
system, so I can't set the fields up...)

				-- Justin du Coeur

jr@bbn.com (John Robinson) (11/15/88)

In article <207400003@inmet>, justin@inmet writes:
>
>Re: Dan Mocsny's Lady in the Boat
>
>Now, what I'm curious about is: is anyone actually working towards this
>stuff?

At least some of it has been demonstrated.  Ivan Sutherland, while at
Harvard, built a system based on the PDP-1 with the following:

. "sword of Damocles", a telescoping arm with gymbal joints and shaft
encoders, attached to a helmet with:
. a pair of 1-2" CRT's mounted on the sides and projected with prisms
into wearer's eyes.
. the PDP-1 ran a program which tracked the wearer's position in the
room, and generated a stereo pair of line drawings of the room's walls
and maybe some furniture (the PDP-1 cabinets, e.g.).

The trick to this system was finding anyone crazy enough to put 30
kilovolts upside his or her temples.

Ivan designed the graphics hardware to generate 3D images in real
time, the approach that he went off and built into a company at E&S.
--
/jr
jr@bbn.com or bbn!jr