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Hardware for VR Part 1 of 4

Hardware for VR Part 1 of 4. Capps, Darken & Zyda Naval Postgraduate School {Capps,Darken,Zyda}@cs.nps.navy.mil. Overview. Visual Displays Spatial 6DOF Trackers Hand Devices Spatial Sound Systems Graphics Engines Miscellany. Position/Orientation (6 DOF) Trackers Magnetic

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Hardware for VR Part 1 of 4

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  1. Hardware for VRPart 1 of 4 Capps, Darken & Zyda Naval Postgraduate School {Capps,Darken,Zyda}@cs.nps.navy.mil

  2. Overview • Visual Displays • Spatial 6DOF Trackers • Hand Devices • Spatial Sound Systems • Graphics Engines • Miscellany

  3. Position/Orientation (6 DOF) Trackers Magnetic Ultrasonic Optical Mechanical Inertial Position/Orientation (6 DOF) Hand Mouse Spaceball Dial Box Input Devices

  4. Command/Selection Gestures Fiber Optic Resistance Mechanical Optical Speech Isolated Connected Continuous Biofeedback EMG (Muscle) EOG (Eye) EEG (Brain) Input Devices

  5. Visual Head Mounted LCD Fiber Optic CRT Boom Mounted CRT Visual Flat Screen CRT Projector Output Devices

  6. Speech Synthesis Prerecorded Text to Speech Auditory Headphones External Speakers Tactile Air Bladders Vibrating Transducers Memory Metals Haptic Glove Mechanical Arm Output Devices

  7. Visual Displays - the “perfect” display • light weight • low power • wireless (non-tethered) • high resolution • full color • wide (variable) field of view • variable opacity

  8. HMD Components

  9. Head-Mounted Displays • Characteristics are highly dependent on the technology used in the light-emitting component • Early attempts used LEDs but were monochrome. (Private Eye displays) • Current technology of choice is LCDs which now allow color but are limited in resolution and have high power consumption • We are awaiting the next breakthrough technology....

  10. HIT Lab - Virtual Retinal Display • http://www.hitl.washington.edu/projects/vrd/

  11. Licensed to Micronics What they’d like it to look like… HIT Lab - Virtual Retinal Display

  12. HIT Lab - Virtual Retinal Display • What it really looks like in 2001 • Shown in AR Section of Emerging Technologies at SIGGRAPH 20001

  13. The Private Eye

  14. UNC/AFIT HMD

  15. UNC See-Thru Display

  16. The Virtual Research VR4

  17. High-End Displays Kaiser Sim-Eye CAE Electronics

  18. BOOM - Binocular Omni-Orientation Monitor • Another approach was to use the best display technology available (which was CRTs at the time) and to mount them on a counterbalanced arm to offset the weight.

  19. BOOM - Binocular Omni-Orientation Monitor • This work was pioneered at NASA Ames and now is done exclusively by Fakespace Inc. • http://www.fakespace.com

  20. Fakespace PUSH BOOM • One problem with the BOOM devices is that they are very heavy and bulky. • What many people wanted was a display that could fit on their desk and be used in concert with their workstation display.

  21. Fakespace PUSH BOOM • The PUSH display stands on three isometric arms that sense intended movement but do not allow large movements to take place. • It has a very small footprint and is cheaper than its larger counterparts.

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