Skip to content

3D Glasses with Head Tracking

The 3D Glasses with Head Tracking (PPT Eyes) enable precise head tracking within the PRISM system. This device features two LEDs, each covered by a white diffuser ball, providing X, Y, Z position data. The yaw and roll of the device are calculated based on the positions of the two tracking LEDs and their fixed distance from one another.

Key Features

  • Head Tracking with Position Data:
  • The device provides raw X, Y, Z position data for each LED, allowing accurate head tracking in the virtual environment.
  • Yaw and Roll Calculation:
  • The yaw and roll orientations are derived using the relative positions of the two LEDs, which maintain a fixed distance for stable tracking data.

Device Components

Power Button

  • Location: Located on the top of the device.
  • Operation:
  • Press once to turn the device on or off.
  • Manual Configuration Mode: Hold the button for more than one second to enter configuration mode.

LED Indicator Light

The LED on the device provides the following indications:

  • Battery Charge Status:
  • Charging: When plugged in, the LED blinks red. The blink speed decreases as the battery charges.
  • Fully Charged: The LED turns solid green when the battery is fully charged.
  • Configuration Assistance: The LED also assists with programming in manual configuration mode.

Battery

The 3D Glasses are equipped with a 350 mAh rechargeable lithium-ion battery. The following table shows approximate battery life based on LED intensity, with hours based on a new battery.

LED Intensity Approximate Battery Life
Low 6 hours
Medium 4 hours
High 3 hours

Note

Choose the LED intensity based on the size of your tracking area to maximize battery life.