Measurement technique: Video. Detects dark pupil and first Purkinje image
Guaranteed sampling frequency: 60 - 500Hz with no dropped frames
Resolution: Down to 0.05°
Accuracy: 0.25° - 0.5°
Horizontal range: 30°
Allowable head movement: ±20mm
Measurement units: Fick, Helmholtz coordinates in degrees, and screen position in mm or pixels. Uncalibrated raw data is also available for your own custom calibration.
Camera type: Digital CMOS sensor with integrated IR illumination
Infrared illumination wavelength: 940nm
Video format: USB3; USB UVC is streamed to the host computer for easy alignment of the Lightning unit and real-time feedback of the participant's Direction of Gaze.
LiveTrack Viewer for camera alignment, Direction of Gaze calibration, pupil size calibration. Supports data logging to file and real-time plots.
Toolbox for MATLAB
Host System Requirements
USB 2 port
Windows 7 64-bit or later, Mac OS X 10.11 or later, 2015 GNU/Linux distribution or later