| 摘要 |
A vibration type multi-beam deflector is provided to reduce the weight of deflective reflection mirrors and moment of inertia by removing an ineffective area from the deflective reflection mirrors. Two or more deflective reflection mirrors(115,116) include reflective sides for deflecting beams and vibrate about a rotary shaft at a constant frequency. A side frame(111) is for supporting the deflective reflection mirrors through the rotary shaft at the outside of the deflective reflection mirrors. A conductive pattern(119) having a loop shape is formed on one of first and second sides of the deflective reflection mirrors in order to form inductive magnetic field around the deflective reflection mirrors. A permanent magnet(135) is formed near the deflective reflection mirrors in order to supply the driving force to the deflective reflection mirrors by applying magnetic attraction and repulsive force to the deflective reflection mirrors.
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