**The specifications for HMD products are culled from WWW sites and product
information. However, the prime source used for compiling this section comes
from the annual resource compiled by the Real Time Graphics Newsletter:

(1996, August). Head-Mounted Display Survey. Real Time Grapics, 5(2), pp.
12. [annual special issue, 1995 issue available online,
http://www.cgsd.com].

BOOM 3C
Display: dual CRT, head-coupled
Resolution: 1280 x 1024 pixels
Field of View: 45/140 (H) x 90 (V)
Tracking: 6DOF optomechanical
Video: RGB field sequential video
Weight: boom
Price: $35,000 - $95,000 US
Note: The MEDVIEW is a custom version for the BOOM optimized for medical
applicatons. It provides special viewing optics and a locking structure
option.
Vendor: FakeSpace

ClearVue
Display: monchrome CRT with LC filters
Resolution: 1280 x 1024 pixels
Field of view: 80 (H) x 40 degrees (V)
Pixel size: 2.65 arc minutes/pixel
Overlap: 30  degrees
Weight: 5 pounds
Price: $95,000 US
Vendor: Hughes Training

CyberEye CE-200S and CE200M
Display: Dual Active Matrix LCD
Resolution: 230 x 789 (180,000) pixels/eye
Field of View: 22.5  degrees H x 16.8 degrees V (27.5  degrees diagonal)
Pixel Size: 3.2 arc minutes/pixel
Video Input Signal: NTSC (2 for stereo)
Weight: 14oz. eyewear, 8oz. beltpack (16oz. for stereo)
Price: begins at $2,495 US. Add $500 for stereoscopic.
Vendor: General Reality

CyberFace 2
Display: single large-format LCD, divergent axis
Resolution: 385 x 119 pixels
Video/Interface: NTSC/PAL composite or RGB
Field of View: 140 (H) x 110(V)
Tracking: not included
Weight: 32 ounces
Price: available only by individual order
Vendor: LEEP Systems

CyberFace 3
Display: single large-format LCD, head-coupled
Resolution: 480 x 120 pixels
Video/Interface: NTSC/PAL composite or RGB
Audio: stereo earphones
Field of View: 80  degrees (H) x 60 degrees (V)
Tracking: mechanical, 3DOF
Weight: arm
Price: available only by individual order
Vendor: LEEP Systems

CyberFace 4
Display: single large-format LCD, head-coupled
Resolution: 640 x 480 pixels
Video/Interface: NTSC/PAL composite or RGB
Field of View: 80 degrees (H) x 60 degrees (V)
Audio: stereo earphones
Tracking: mechanical, 3DOF
Weight: arm
Price: $18,400
Vendor: LEEP Systems

CyberFace 5 - LEEP Systems
Display: quad LCD, triple acuity
Resolution: 1170 x 202 pixels
Field of View: 140 degrees (H) x 110 degrees (V)
Price: available in 1997
Vendor: LEEP Systems

Datavisor (Full Color: Datavisor VGA and Datavisor Hi-Res)
Display: dual CRTs
Resolution: >1280 x 1024 pixels
Pixel size: 2 arc minutes/pixel
Field of View: 41.6 degrees (H) x 31 degrees (V)
Overlap: 50/100% adjustable
Tracking: optional
Weight: 56 oz
Price: contact vendor
Vendor: n-Vision

Datavisor 80
Display: monochrome CRTs and LCD shtutter devices
Resolution: >1280 x 1024 pixels
Pixel size: 2.9 arc minutes/pixel
Field of View: 64 degrees (H) x 48 degrees (V)
Overlap: 50/100% adjustable
Tracking: optional
Weight: 64 oz
Price: contact vendor
Vendor: n-Vision

Fiber-Optic Head-Mounted Display (FOHMD)
Display: CRT projector through fiber optics
Pixel size: 6.6 background, 2.2 inset; pixel structure: 1.2
million pixels distributed between inset and background
Field of view: 120  degrees (H) x 55  degrees (V)
Overlap: 25  degrees
Weight: < 4.5 lbs.
Price: by quotation
Vendor: CAE Electronics
Display Type: HMD

FS2
Display: dual CRT
Resolution: > 1280 x 1024 pixels
Field of view: 45/140  degrees (H) x 90  degrees (V)
Overlap: ~ 100%sharon@metropolis.vetl.uh.edu
Video: RGB field sequential video
Tracking: 6DOF optomechanical
Weight: boom
Price: $65,000 - $105,000
Vendor: FakeSpace, Inc.

FS5
http://www.virtualresearch.com/fs5.html
Display: dual 1" black and white CRTs with color shutters
Resolution per eye: 800 horizontal lines (600 TV lines)
Field of view: 55  degrees diagonal at 100% overlap. 76  degrees at 50% overlap
Overlap: 100%, adjustable to 50%
Pixel size: 3.3 arc minutes/pixel
Weight: 38 oz.
Price: contact vendor
Vendor: Virtual Research

Full Immersion HMD
Display: active matrix LCD
Resolution: 640 x 480
Field of view: 150  degrees (H) x 50 degrees (V)
Overlap: 40  degrees
Pixel size: 4.0 arc minutes/pixel
Weight: > 2 lbs.
Price: contact vendor
Vendor: Kaiser Electro-Optics

HIDEF 90  degrees and 60  degrees
Display:2 full color, active matrix TFT, high speed polysilicon LCDs (2)-
(640 x 3)x 400
Resolution: Background 6 arcmin/color group, AOI 2.5 arcmin/color group
Background 6 arcmin/color group, AOI 2.5 arcmin/color group
Field of view: 80 degrees diagonal - 50  degrees (V) x 6.5  degrees (H)
Background: 32  degrees diagonal - 20  degrees (V) x 25  degrees (H)
Tracking: Polhemus optional
Overlap: 100%
Weight: 2.5 pounds
Price: contact vendor
Vendor: Kaiser Electro-Optics

Low Vision Enhancement System
Display: B&W CRT
Resolution: 512 x 492 pixels
Field of View: 50 (H) x 37.5 (V)
Pixel Size: 5.9 arc minutes/pixel
Overlap: 100%
Weight: 2.1 lb
Price: $5,795 US (with 3 cameras)
Vendor: Visionics Corporation

Mediamask (Olympus Corp.)
Display: LCD, switchable see-through capability
Resolution: 1068.5 x 480
Field of View: 60  degrees (H) x 34  degrees (V)
Weight: 1.5 lb.
Price: 900,000 yen
Vendor: Nissho Electronics, sold only in Japan

MRG 2
Display: active matrix LCD, single screen
Resolution: 720 X 240 pixels
Field of View: 84  degrees (H) x 65  degrees (V)
Pixel Size: 7.0 arc minutes/pixel
Weight: 4 pounds
Price: $3,495
Vendor: Liquid Image

MRG3C - Liquid Image
Display: active matrix LCD, single screen
Resolution: 768 x 556 pixels
Field of View: 84  degrees (H) x 65  degrees (V)
Pixel Size: 7.0 arc minutes/pixel
Video/Interface: NTSC/PAL, analog RGB
Weight: 4 pounds
Price: $5,500
Vendor: Liquid Image

MRG4 - Liquid Image
Display: active matrix color LCD, single screen
Resolution: 479 x 234 pixels
Field of View: 61  degrees (H) x 46  degrees (V)
Video/Interface: NTSC composite, analog RGB
Weight: 2.5 pounds
Price: $2,199
Vendor: Liquid Image

MRG6
Display: monocular LCD
Field of View: 40  degrees diagonal
Video Input: VGA
Weight: 4 oz.
Price: $3,495.00 US
Vendor: Liquid Image

Personal Assistant Headset
WWW: http://www.keo.com/Product_Displays_PAH.html
Display: monocular, miniature VGA monchrome LCD
Field of View: 24 degrees (H) x 18 degrees (V)
Resolution: 640 x 480, non see through
Pixel Size: 2.5 arc minutes/pixel
Weight: 120 grams
Price: contact vendor
Vendor: Kaiser Electro-Optics

ProView
Display: 2 full color, active matrix TFT, high speed polysilicon LCDs
Field of View: 30  degrees diagonal - 18  degrees (V) x 24  degrees (H)
Resolution: (640x3) x 480
Resolution/eye: 2.25 arcmin/color group
Overlap: 100%
Video Input: One or two VGA 640 x 480, H&V - TTL, analog 0.7V P-P,75 ohms,
60 Hz video inputs. Autosense for stereoscopic or monoscopic operation,
Internal and external sync
Audio: Sennheiser digiatally compatible headphones
Weight: 32 oz.
Price: contact vendor
Vendor: Kaiser Electro-Optics

PUSH
Display: dual CRT
Resolution: > 1280 x 1024 pixels
Field of View: 30-140  degrees (H) x 90  degrees (V)
Overlap: 100%
Price: $45,000
Vendor: Fakespace

See-Thru-Armor
Display: dual active matrix LCD
Resolution: 789 x 230 pixels
Field of View: 32  degrees (H) x 24  degrees (V)
Pixel size: 3.75 arc minutes/pixel
Overlap: 100%
Weight: 5 lb.
Price: $25,000 US
Vendor: Vista Controls

SIM EYE 40
WWW: http://www.keo.com/Product_Displays_SIMEYE40.html
Display: dual CRT
Resolution: 1280 x 1024 pixels/LCD (at 50% overlap)
Field of view: 40  degrees circular (100  degrees overlap) , 60  degrees (H) x 40  degrees (V) (20  degrees
overlap)
Overlap: 50 or (100 % overlap,
Video: 1280 x 1024 @ 2:1 Interlaced, 1024 x 1024 @ 2:1 Interlaced, 640 x 480
Non-Interlaced, 50 Hz/60 Hz. Vertical
Tracking: optional -- Universal Interface Box, Polhemus trackers
Weight: 4.5 pounds
Price: contact vendor
Vendor: Kaiser Electro-Optics

SIM EYE 60
WWW: http://www.keo.com/Product_Displays_SIMEYE60.html
Display: field sequential CRT
Resolution: > 1280 x 1024 pixels
Field of view: 100  degrees (H) x 60  degrees (V)
Overlap: 20  degrees
Pixel size: 3.0 arc minutes/pixel
Weight: 5.2 pounds
Price: contact vendor
Vendor: Kaiser Electro-Optics

STV-E
Display: monochrome CRTs with color wheels
Resolution: 600 x 480 pixels
Field of View: 48-60 degrees (H) x 36 degrees (V)
Pixel size: 4.8-6.0 arc minutes/pixel
Overlap: 100 %
Weight: 2.8 lb
Price: 2, 800,000 yen
Vendor: Shimadzu Corporation

V-Cap 1000 Digital Head-Mounted Unit (DHMU)
Display: monocular LCD
Vendor: Virtual Vision

VFX-1
WWW: http://www.fortevr.com/vfx1info.html
Display: dual active color matrix LCD
Resolution: 789 x 230 pixels
Field of view: 33.45 degrees (H) x 25.46  degrees (V)
Overlap: adjustable up to 100%
Tracking: proprietary 3DOF sourceless "Virtual Oreintation System"
Weight: ~32 ounces
Price: $895
Vendor: Forte Technologies

VIM 1000HRpv
WWW: http://www.keo.com/Product_Displays_Entertainment.html
Display: 4 active matrix LCDs
Resolution: 800 x 225 pixels/LCD
Field of view: 100  degrees (H) x 30  degrees (V)
Overlap: 67%
Weight: 26 ounces
Price: contact vendor
Vendor: Kaiser Electro-Optics

VIM 500pv
Display: dual LCD
Resolution: 237 x 225 pixels
Field of view: 50  degrees (H) x 30  degrees (V)
Tracking: Polhemus optional
Overlap: 100%
Weight: 24 ounces
Price: $3,495 US
Vendor: Kaiser Electro-Optics

Viper 3
WWW: http://www.innet.net:80/oip/newprod/viper.htm
Display: Day and Night Helmet with intergrated image intensifier tubes and a
binocular projected Head Mounted Display
Resolution: at 0.03 lux, better than 1 mrad
See-through image: 180 x 110
Exit Pupil: 12mm on axis
Weight: < 2.3 kg
Vendor: Delft Instruments

Virtual Binoculars
Display: monochrome CRTs
Resolution: > 1280 x 1024
Field of View: 33.8 degrees (H) x 25.7 degrees (V)
Pixel size: 3.1 arc minutes/pixel
Weight: 32 oz
Price: contact vendor
Vendor: n-Vision

Virtual Reality HMD133
Display: dual CRT
Resolution: 2560 x 1204 pixels
Field of View: 116  degrees (H) x 58 degrees (V)
Overlap: 100%
Tracking: tracker mounts provided
Note: connects to SGI RealityEngine field sequential interface
Weight: 2.5 lbs
Price: $64,000 US
Vendor: Virtual Reality Inc.

Visette Pro
Display: dual poly-silicon TFT active matrix LCDs
Resolution: 640 x 480
Field of View: 60  degrees (H) x 46.8  degrees (V)
Pixel size: 4.76 arc minutes/pixel
Weight: 23 oz.
Price: $5,950 US (includes Polhemus InsideTrack)
Vendor: Virtuality

VR4
Display: dual active matrix LCDs
Resolution: 742 x 230
Field of view: 48 degrees (H) x 36 degrees (V)
Overlap: 85% or 100%
Pixel size: 4.21 arc minutes/pixel
Weight: 34 oz.
Price: contact vendor
Vendor: Virtual Research Systems

VR6
Display: dual active matrix LCDs
Resolution: 742 x 230
Field of view: 48 degrees (H) x 36 degrees (V)
Overlap: 85% or 100%
Pixel size: 4.21 arc minutes/pixel
Weight: 34 oz.
Price: contact vendor
Vendor: Virtual Research Systems

VR4000
Display: dual active matrix LCDs
Resolution: 732 x 230
Field of view: 48 degrees (H) x 36 degrees (V)
Overlap: 100%
Pixel size: 4.21 arc minutes/pixel
Weight: 31 oz.
Price: contact vendor
Vendor: Virtual Research Systems