| 摘要 |
Disclosed herein is a deflection scanner for the laser projection system of a mobile terminal. The deflection scanner includes a rotating axis, a magnet, at least one pair of armatures, at least one detection sensor, and a circuit board. The rotating axis is configured to reciprocally rotate a reflecting mirror by a predetermined angle. The magnet is installed to be fastened to the rotating axis and is configured to form a predetermined magnetic field. The armatures are installed at the circumference of the magnet to be spaced apart from each other. The detection sensor configured to detect the rotational displacement of the rotating axis by detecting variation in a magnetic field of the magnet. The circuit board is installed such that the detection sensor and the armatures are electrically connected to each other, and is configured to electrically control the armatures using the output voltage of the detection sensor.
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