DEPTH SENSOR, 3D IMAGE SENSOR AND DEPTH SENSING METHOD THERE-OF

摘要

PURPOSE: A distance sensor, a three-dimensional image sensor, and a method for calculating a distance using the same are provided to detect the quantity of electric charge and to measure a change of the detected quantity of electric charge. CONSTITUTION: A method for calculating a distance using a distance sensor and a three-dimensional image sensor is as follows. Light is periodically transmitted to a target object by periodically turning on/off a light source(S310). The light reflected from the target object is entered into an optical detection unit(S320). The time in which the entered light is detected is variously adjusted(S330).