How It Works

To track the CrystalEyes eyewear in three-dimensional space, an ultrasound array configured as a triangle of three speakers sits on top of the monitor. It sends signals along a line of sight to microphones incorporated in the eyewear. These microphones sample the transmitted signals 50 times per second.

The triangular ultrasound array and eyewear microphones are connected to a control unit via flexible cables. The control unit converts detected phase differences into spatial information, thus tracking the user's head position and allowing software to rapidly calculate new perspective views.

The user wearing CrystalEyes VR, that is, the eyewear equipped with ultrasound microphones, interacts with the image. Additionally, any number of viewers wearing CrystalEyes stereo eyewear can observe the first user's interactions.

Since CrystalEyes VR uses ultrasound technology to detect head position, it will not interfere with devices using infrared, electric or magnetic fields.

Photo
Video System Components

CRYSTALEYES VR (CE-VR) CONTAINS:
1 pair of CrystalEyes VR interactive stereo eyewear
1 emitter
1 ultrasound array with controller
Cables and documentation
Optional:
3D mouse
Sense8 WorldToolKit Developer's Software
CE-VR Specifications
Resolution:200 dpi at 18" from ultrasound transmitter
Interface:RS-232-C9 or 25-pin serial; 19,200 baud
CPU:Built-in to unload host with
downloadable 8K memory
Sensor:Microphone in eyewear
Sample Rate:Up to 50 updates/second
Reporting Rates:Demand: Up to 50 reports/second
Incremental: Up to 50 reports/second
Stream: 50 reports/second only
Reporting Formats:Euler angles (pitch,yaw and roll)
and quaternions
Position:Active area: 200 dpi at 18" from
ultrasound transmitter
Fringe Area: 50 dpi at 18"
from ultrasound transmitter
Orientation:Active area: 1/10 degree
Fringe Area: 1/2 degree
Tracking Speed:Up to 30 inches per second
Tracking Area:Seven-foot cube
Power Requirements:115v (220v optional)
Dimensions of Triangle:Height: 196mm
Depth: 94mm
Width: 280mm
Dimensions of
Control Unit:
Height: 43mm
Length: 224mm
Width: 175mm
Dimensions of
Power Supply:
Height: 75mm
Length: 125mm
Width: 90mm



 

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