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1. (WO2017149713) LIGHT DEFLECTION DEVICE

Pub. No.:    WO/2017/149713    International Application No.:    PCT/JP2016/056523
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Fri Mar 04 00:59:59 CET 2016
IPC: G02B 26/10
B81B 3/00
Applicants: HOKUYO AUTOMATIC CO., LTD.
北陽電機株式会社
Inventors: ASADA, Norihiro
▲浅▼田 規裕
Title: LIGHT DEFLECTION DEVICE
Abstract:
Provided is a light deflection device wherein noise is not generated in a housing whereon a fixed part is mounted by minimizing the vibration caused by the oscillation of a light deflection part and transmitted to the fixed part. The light deflection device comprises: a light deflection part 5 wherein a pair of beam parts 4 is provided on both ends of a moving part 3 which includes a light reflection part and a coil; and a fixed part which has the light deflection part 5 fixed thereto so as to be capable of oscillating via the beam parts 4, and includes a magnetic field forming part. The light deflection device uses an electromagnetic force generated from a driving current flowing in the coil and a magnetic field formed by the magnetic field forming part to oscillate the moving part 3 with the beam parts 4 serving as torsional rotating shaft. A counter oscillating body 15 that oscillates in reverse phase to the oscillation phase of the light deflection part 5 is provided on the fixed part 2 so as to face the light deflection part 5.