Eye movement detector calibration device
Pruchsner, W.R.; Zenker, M.; Enderle, J.D.
Biomedical Sciences Instrumentation 40: 435-440
2004
ISSN/ISBN: 0067-8856 PMID: 15133997 Document Number: 580813
Presented is a device developed for specifically calibrating and validating the operation of Eye Movement Detectors or Monitors. The Calibrator centers on two one inch diameter HPDE spheres representing the eyes. A Laser Module is embedded in the rear of each sphere emitting a beam against a target divided in equal measurement intervals mounted as part of the device. The device moves the "eyes" about its center axes enabling the user to validate any vertical, horizontal, or X-Y combination eye position in a plus or minus fifteen degree range. Although hand controlled, the Calibrator can be motorized with stepper motors or other desired drivers. Anatomically correct sized pupils are imbedded in the front of each "eye," thereby acting as the target for whichever system is under test by the very portable Calibrator. Currently, a simple battery controlled circuit controls the laser modules and other electric requirements with accommodation for additional circuit components if required in the future. Specifically designed for validating the operation of an IR Reflective Differencing Saccadic Eye Movement Measurement System, the Calibrator can also be used with little or no alteration for validation of camera systems and other types of devices.