Lightweight wearable eye tracking system

*Developed with the support of PUPIL LABS in Germany.

ViewTracker3 is a new eye tracking measurement system with a light-weight headset that adopted USB3.0 for its interface.

Three small digital cameras are mounted, and the data of the field of vision and the movement of pupils of both eyes are obtained.

The gaze data will be measured in real time.

Captured images can be transported and saved to Windows computers by USB 3.0 cable.

Small pupil cameras allow the eye tracking measurement for the downward gaze, and the posture and the position of the cameras can be flexible.

For a user wearing glasses, this headset can be wearable under their own glasses and corrective lenses are not necessary. 

Automobile: eye movements while driving cars

  • Gaze measurement in free space

Production site: visualizing inspection process

  • Visualization of experts' eye movements
  • Manual for beginners, sharing quality management policy

Specialized operation: educational purpose

  • Visualization of experts' eye movements
  • Manual for beginners

Psychology, academic research, TV programs

  • Providing materials for psychological research
  • Visualizing gaze difference between generations

Features of ViewTracker3

Small and lightweight

Using with own glasses

Wearable under their own glasses. Corrective lenses are not necessary.

Small Wearable with a helmet.
Very light Weight is only about 40g. Optimal structure to fit user's face well. Small and light.


High performance

High speed sampling

High speed sampling up to 200Hz for eye cameras. Sufficient data to ensure accuracy.

Wired data transmission

Stable data transmission compared with wireless system.

High definition camera

World camera is 30Hz high definition camera. (will be available for full HD in the future)

Auto gain control Allowed to use under the sun.


High functionality

Analysis function Heat map, gaze history, area analysis, etc. are standard analysis items.
3D model measurement Reducing the errors caused by differences in distance by estimating both eye ball models in 3D.
Locus Gaze history is shown as locus. The locus length is changeable.
Duration of pause Point where a subject paused is displayed clearly in an enlarged pointer.
Interchangeable lens Magnifying lens is included.


Useful function

Real-time measurement

The gaze data is measured in real time and written to a specific folder, and thus you can check it immediately after the measurement.

The network function enables real-time access to data.

(1FPS for scenery images)

Auto calibration

Completed in a short time. Just follow the pointer on the screen with your eyes. 

Languages English / Japanese

Offset function

Fix the error that tends to occur only by a click.

Live video

Live video of the gaze data is displayed on the screen while measuring.

Analysis results



Eye camera sampling 200Hz, 120Hz
World camera sampling

30Hz (Resolution 1280×720)

World camera adjustment

Backlight compensation, Brightness, Contrast, Gain, Hue, Saturation, Sharpness gamma, White balance

Connection with PC USB3.0 cable included
Cable length 2m / 5m (optional, no guarantee of proper operation)
Calibration method Manual (Specify the gaze point) / Automatic detection (Follow the indication marker)
Output movie files MP4 (Mpeg4 / Motionjpeg)
Output audio file MP3
Weight of headset Approx. 40g
Measurement modes 3D (Search for the gaze crossing point) / 2D

Field of view

(Horizontal x Vertical)°

Wide angle 106×56 / Magnification 41×23
OS Windows10 (64bit)
Data capacity 400MB / min (Reference value, varies depending on conditions)