Abstract
A new method to measure eye-movement is developed. The method is named capacito-oculography (COG). In this method, capacitance change between surface of an eyeball and an electrode is used for measurement. Pair electrodes are set up to front of the eyeball. A distance between both surface change when eye movement occurs. The change of the distance becomes the capacitance change of the space. The change also equivalent to a change in capacitance contained in a tank circuit of an oscillator. Therefore, a carrier wave is modulated by the capacitance change based on the eye movement like as a frequency modulation (FM). An information of eye movement can be measured by discrimination of the FM modulated signal.
