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1. (WO2018037811) LIGHT DEFLECTOR AND IMAGE FORMING DEVICE PROVIDED WITH LIGHT DEFLECTOR

Pub. No.:    WO/2018/037811    International Application No.:    PCT/JP2017/026733
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Tue Jul 25 01:59:59 CEST 2017
IPC: G02B 26/10
B41J 2/47
G02B 26/08
G03G 15/04
H04N 1/036
H04N 1/113
Applicants: KYOCERA DOCUMENT SOLUTIONS INC.
京セラドキュメントソリューションズ株式会社
Inventors: TOYOTA Yuji
豊田 祐司
Title: LIGHT DEFLECTOR AND IMAGE FORMING DEVICE PROVIDED WITH LIGHT DEFLECTOR
Abstract:
This light deflector is provided with: a vibration mirror part (41) having a reflection surface (41a) that reflects a light beam; a torsion bar part (42) supporting the vibration mirror part (41); a driving unit (47) that causes the vibration mirror part (41) to oscillate about the torsion bar part (42) by resonating the vibration mirror part (41); and an oscillation stabilizing member (60) for stabilizing the oscillating motion of the vibration mirror part (41). The oscillation stabilizing member (60) is provided outside a passing area of the vibration mirror part (41) on a side opposite to the reflection surface (41a) side of the vibration mirror part (41). The surface, of the oscillation stabilizing member (60), facing the vibration mirror part (41) includes a pair of wall surface sections (60a, 60b) from which the respective distances to the vibration mirror part (41) become shorter from the both end sides of the vibration mirror part (41) toward the center portion in a main scanning direction.