Patent ID: 9134117
Filing Date: 2015-09-15
Classification: G01B

Abstract:
1. A distance measuring method for measuring an object within a predetermined depth range, the method comprising: projecting, using a light source, a light section onto the object with a projection angle which is an angle between a projection direction of the light section and a normal line of a surface of the object facing the light source; sensing, using a sensor array comprising a plurality of light sensing units, reflected light from the light section on the object; determining the light sensing units that are to sense the reflected light from the light section on the object as a window of interest of the sensor array according to the projection angle and the predetermined depth range; controlling the light sensing units of the sensor array within the window of interest to output electric signals, and controlling the light sensing units of the sensor array, which are not within the window of interest and do not sense the reflected light from the light section on the object, not to output electric signals.