NEW STEREO VIDEO CAMERA SYSTEM 

StereoGraphics Breakthrough 3D CrystalEYES VideoSystem Features Near
Broadcast Quality and High Performance At Reasonable Price, Primary
Application: Minimally Invasive Surgical Procedures.

San Rafael, CA--October 19, 1992 - StereoGraphics Corporation, the world's
leading supplier of true three-dimensional electronic stereoscopic display
products for medical, scientific, business, education and entertainment
markets announced a new stereoscopic camera system at the American College
of Surgeons Clinical Congress. The system is designed for a wide number of
applications, including surgical laparoscopy, microcoscopy, arthroscopy as
well as microscopic manufacturing process control, educational training,
industrial video, entertainment video and other applications.

The stereo (3D) CrystalEYES VideoSystem is a completely self-contained
video system including view, record and playback capabilities, which can
be battery operated. The CrystalEYES VideoSystem is NTSC and PAL
compatible, and works with virtually all video equipment worldwide. With
onboard microprocessors, the video system is totally self-contained,
requiring no external computer. The system uses standard video cameras
which are available as an option.

"For ten years, we have listened to our video customers and now have the
universal, general purpose solution to the problem in the stereo video
market-- the need for a stereo video product with high performance at a
reasonable price, entirely compatible with the video industry
infrastructure," said Dick Martin, president of StereoGraphics. "The
applications for the product are enormous, and extend into virtually every
corner of medicine, industry, education, and entertainment."

Martin noted that the patent-protected proprietary system is a
technological breakthrough, combining multiplexing and electro-optics in
the industry's first self-contained 3-D stereo video system.

The View/Record Controller permits the operator to shift the relative
positions of the two stereo image fields in the vertical and horizontal
directions by means of paddle controls on the front panel. This permits
the user to correct remotely and electronically for stereo camera image
misalignment and to continuously reset convergence and zero parallax
settings.

In describing the patent-protected technology, Lenny Lipton,
StereoGraphics' founder and chief technical officer, stated that, "The
View/Record Controller stores the signals from left and right cameras in
buffers, and then reads them out at twice the rate at which they were
written, thus alternating them in the flicker-free . . . left, right,
left, right . . . sequence we invented." He went on to add that,
interlaced stereoscopic pictures, made up of four fields, are displayed on
a stereo-ready, interlacing color monitor, real time. Simultaneously, the
View/Record Controller multiplexes twice the normal bandwidth signal into
a normal bandwidth, thus making it recordable on a standard VCR or
transmitted on a channel of normal bandwidth."

The Playback Controller transforms the View/Record Controller's multiplexed
signal, which has been recorded on a VCR or laser disc, or transmitted
through the air or on a closed circuit cable, into a 120 fields-per-second
stereoscopic signal. The signal passes from the standard recorder through
the Playback Controller to the monitor. StereoGraphics CrystalEYES eyewear
permits viewing of the flicker-free stereo video images on the monitor.

System Configurations and Pricing

The CrystalEYES Video System consists of the View/Record Controller,
Playback Controller, three pairs of CrystalEYES active liquid crystal
shuttering eyewear, infrared emitter, 15 inch color stereo-ready
interlacing monitor, output cabling, wall mount 110/220V switching power
supply and operation manuals. The View/Record Controller and separate
Playback Controller both operate on 12V DC and can be battery operated,
thereby adaptable for vehicular or backpack use. A user selectable switch
permits either NTSC or PAL operation. Cameras are optional; details are
available from StereoGraphics.

This complete stereo video system has a list price of $12,000 in North
America. The international list price is $12,600. Recognizing that the
View/Record and Playback Controllers will be used separately and remotely
from each other, StereoGraphics has announced two additional
configurations and prices; details are available from the company. The
systems are currently available directly from StereoGraphics.

Applications

"A primary application for the CrystalEYES VideoSystem is endoscopic
surgery, specifically laparoscopy," stated Wil Cochran, Vice President of
Sales and Marketing at StereoGraphics. "Minimally invasive surgery
procedures restrict the surgeon's view dramatically. Once equipped with
our video system, the surgeon sees as he does with an open body cavity.
The advantages so improve the operation's success that surgeons will not
return to planar display once they have experienced true stereoscopic
images."

Other potential medical applications include arthroscopy, microscopy, as
well as other laproscopic procedures like appendectomies, hysterectomies,
thoracoscopy, hernia repairs and bowel surgery. Because stereo 3-D
provides natural depth perception, the CrystalEYES VideoSystem virtually
eliminates "bump and back-off" procedures inherent in minimally invasive
surgery. Other applications include:

* Education and training, where stereo adds an entirely new dimension to
object manipulation training tasks of a wide variety.

* Entertainment, where closed presentations include stereo as a startling
addition to "thrill ride" venues.

* Microscopic manufacturing, where stereo inspection aids in process
control and quality auditing.

* Remote manipulation, for fragile objects in special atmospheres,
underwater operation, hazardous material handling (i.e. nuclear), and
outer space.

* Industrial ant corporate video presentations in trade shows, large scale
or limited access environments, museums, and theatrical presentations.

* Advanced communications, such as teleconferencing for remote design
centers, boardrooms and press conferences.

Other Products 

StereoGraphics CrystalEYES systems also produce true 3D stereo images on
projection screens and computer monitors. The patented CrystalEYES eyewear
alternate left and right images at 120 frames per second, thereby creating
true flicker-free, full-color depth perception. Additionally, the
CrystalEYES VR virtual reality system produces stereo images interacting
via an ultrasound head-tracking device creating six degrees of freedom.
The viewer interacts with the image through head movements while viewing
in true 3-D, creating a startling virtual reality experience.

StereoGraphics Corp., founded in 1980 and now the world's leading
manufacturer of true stereo viewing systems, invented and developed the
market for modern electrostereoscopic displays. In 1983, the company
shipped the first flicker-free modern electrostereoscopic video system to
Lockheed Missiles and Space Company. Due to its capability and reasonable
price, the CrystalEYES stereo viewing system has been accepted as
breakthrough hardware technology for 3D stereo and virtual reality
viewing. StereoGraphics is located at 2171 East Francisco Boulevard, San
Rafael, California 94901, phone 415/459-3500, fax 415/459-3020.

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