Patent ID: 8451690
Filing Date: 2013-05-28
Classification: G01S,H05B,Y02B

Abstract:
1. A control method for use with a lighting system, the lighting system comprising a light source and an ultrasonic transceiver, the control method being characterized by comprising steps of: measuring the time of an ultrasonic signal emitted from the ultrasonic transceiver and reflected by an object to reach the ultrasonic sensor, thereby obtaining a time of flight; calculating a distance between the object and the ultrasonic transceiver according to the time of flight, dividing a detection region into a first control region and a second control region according to the distance; and moving the object to the first control region, thereby performing a first controlling operation and adjusting a first optical characteristic, and/or moving the object to the second control region, thereby performing a second controlling operation and adjusting a second optical characteristic.