| 摘要 |
PURPOSE: A system for measuring the tilt and performance of a cellular phones camera by using a displacement sensor is provided to improve workability by directly irradiating a laser beam to a bobbin of an actuator without using a real lens or a dummy at the actuator. CONSTITUTION: A displacement sensor(30) senses displacement depending on the motion of an actuator(20) by directly irradiating a laser beam onto the plural positions of the actuator. A controller(40) converts a sensed displacement into an analog signal, and a relay station(50) relays the converted analog signal. A control unit(60) measures the tilt depending on the displacement of the actuator in a preset algorithm by using the relayed signal. The control unit outputs the driving voltage of the actuator. |
