DESIGN OF MECHATRONIC SYSTEM FOR EYEBALL MOVEMENT

Human eye is a potential medium to discover non-verbal communication. It can be done by observing the eye characteristics such as eye gaze and eye blinks activities. Eye movement and eye blink are the main parameters of the project where it can be used to relate with eye fatigue. The information on these parameters can be obtained by designing a prototype that using infrared oculography technique. This technique is based on the infrared light reflection on the iris. Infrared emitter projects infrared light toward eye and its reflection will be captured by the sensor. The signals from the sensor are transformed into line graph form in order to obtain the movement pattern for analysis process. By doing comparison on the data patterns due to different Visual Display Terminal (VDT) conditions, eye fatigue state can be set and known. In this project, the prototype is successfully fabricated and performed well in fake eye test. However, the prototype seems having problem with low infrared light intensity after the light has been reflected on the iris. But, there are some modifications that have been proposed in order to improve the performance and sensitivity of the prototype.