Coordinate input apparatus including an optical movement detection device used for optically inputting coordinates and pressed for switching a switch device

摘要

This coordinate input apparatus comprises an optical movement detection device and a switch device. The optical movement detection device projects a light on a detection object moving on an input portion, and receives the light reflected from the detection object so as to generate a move signal according to the light reflected from the detection object. The move signal includes moving direction information and moving distance information of the detection object. The switch device switches on and off by the optical movement detection device being displaced by the input portion being pressed.