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From: vrr@cbnewsj.att.com (veenu.r.rashid)
Newsgroups: comp.human-factors
Subject: Re: Eye Movement Tracker
Message-ID: <1991Jun14.230620.28095@cbnewsj.att.com>
Date: 14 Jun 91 23:06:20 GMT
References: <164661@felix.UUCP> <1991Jun14.192945.16681@linus.mitre.org>
Distribution: na
Organization: AT&T Bell Laboratories
Lines: 27

In article <164661@felix.UUCP> asylvain@felix.UUCP (Alvin "the Chipmunk" Sylvain) writes:
>How about tossing that old mouse into the trash can, and construct a
>device which looks into your eyes while you're reading the screen, and
>can actually track the precise location of what you're looking at?
>
>Rather than "clicking" a mouse, you just touch a button when you want to
>select the word or screen-button that's in your current "gaze."  Natur-
>ally, a cursor follows your gaze around the screen, and touching the
>button flashes the cursor (or inverts the screen button, whatever) for
>immediate feedback.
>
>Such devices already exist, but they require physical contact with the
>eyeball.  This is undesireable (at least to me!)


I don't know where I heard this from, but some company in England has
created a tracking system which is mounted on a frame around the eye.
A tiny laser head uses microscopic pulses to write the image to the
retina.  Motors allow it to track the pupil as it moves.  A lot of
development time was spent finding the correct intensities.

Check out sci.virtual-worlds and Human Interface Technology Lab
(HITL) for more information.

Veenu

vrr@cbnewsj.att.com