APPARATUS FOR DISPLAYING TOUCH OF VOLLEY BALL

摘要

PURPOSE: A contact display apparatus of a volleyball is provided to display a contact on the volleyball with players with light during a volleyball game. CONSTITUTION: A contact display apparatus of a volleyball comprises the following: a pressure sensor(110) detecting the pressure on the surface of the volleyball; plural display lamps(120) installed inside the volleyball for outputting light; a driving circuit operating the display lamps when the pressure change detected from the pressure sensor is greater than the prefixed critical value; and plural holes(130) radiating the outputted light from the display lamps to the outside of the volleyball.