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1. 发明申请

US20140355087A1 LIGHT SCANNING APPARATUS, LIGHT SCANNING CONTROL APPARATUS, AND LIGHT SCANNING UNIT 有权
标题翻译：光扫描装置，光扫描控制装置和光扫描装置
公开(公告)号：US20140355087A1
公开(公告)日：2014-12-04
申请号：US14283384
申请日：2014-05-21
申请人： Riichiro HIBIYA , Hisamichi Sekine
发明人： Riichiro HIBIYA , Hisamichi Sekine
IPC分类号： G02B26/10
CPC分类号： G02B26/105
摘要： A light scanning apparatus includes torsion beams supporting a mirror supporting portion on opposite sides of the mirror supporting portion along an axis direction, the mirror supporting portion being swung around the axis direction by the torsion beams; a pair of drive beams sandwiching the mirror and the mirror supporting portion in a direction orthogonal to the axis direction; connection beams that connect mutually facing sides of each drive beam with the torsion beams; and a piezoelectric sensor formed on the connection beams and detecting displacement of the connection beams caused by a swing of the torsion beams around the axis when the mirror swings by a drive voltage, wherein a first bias voltage having a positive or negative polarity is applied to an upper electrode of the piezoelectric sensor, and a second bias voltage having an opposite polarity is applied to a lower electrode.
摘要翻译：光扫描装置包括：扭转梁，其沿着轴方向支撑反射镜支撑部的相对侧的反射镜支撑部，所述反射镜支撑部通过所述扭转梁绕所述轴线方向摆动; 一对驱动光束，其在与轴向正交的方向上夹着反射镜和反射镜支撑部; 将每个驱动梁的相互面对的侧面与扭转梁连接的连接梁; 以及形成在所述连接梁上的压电传感器，并且当所述反射镜以驱动电压摆动时，检测由所述扭转波束绕所述轴线的摆动引起的所述连接梁的位移，其中施加正极性或负极性的第一偏置电压压电传感器的上电极和具有相反极性的第二偏置电压施加到下电极。

2. 发明申请

US20150124304A1 OPTICAL SCANNER APPARATUS AND OPTICAL SCANNER CONTROL APPARATUS 有权
标题翻译：光学扫描仪和光学扫描仪控制装置
公开(公告)号：US20150124304A1
公开(公告)日：2015-05-07
申请号：US14591260
申请日：2015-01-07
申请人： Toyoki TANAKA , Somei TAKAHASHI , Hisamichi SEKINE , Hisanori AGA , Riichiro HIBIYA
发明人： Toyoki TANAKA , Somei TAKAHASHI , Hisamichi SEKINE , Hisanori AGA , Riichiro HIBIYA
IPC分类号： G02B26/10 , G01C9/06
CPC分类号： G02B26/105 , G01B11/25 , G01C9/06 , G01C2009/066 , G01S7/4817 , G02B26/0858 , G02B26/101
摘要： An optical scanner apparatus includes first and second torsion beams which support a mirror support portion supporting a mirror from both sides in an axial direction; first and second horizontal driving beams configured to include first and second horizontal driving sources, respectively, a connecting beam; a first piezo-electric sensor; first and second sensor interconnects connected to one of and the other of an upper electrode and a lower electrode of the first piezo-electric sensor, respectively, the first sensor interconnect and the second sensor interconnect being formed to extend toward the first horizontal driving beam and the second horizontal driving beam, respectively.
摘要翻译：光学扫描仪装置包括第一和第二扭转梁，其支撑从轴向方向两侧支撑反射镜的反射镜支撑部分; 分别包括第一和第二水平驱动源的第一和第二水平驱动梁，连接梁; 第一压电传感器; 第一和第二传感器互连分别连接到第一压电传感器的上电极和下电极中的一个并且另一个，第一传感器互连和第二传感器互连形成为朝向第一水平驱动光束延伸，第二水平驱动梁。

3. 发明申请

US20200209617A1 OPTICAL SCANNING APPARATUS AND METHOD OF CONTROLLING OPTICAL SCANNING APPARATUS 审中-公开
公开(公告)号：US20200209617A1
公开(公告)日：2020-07-02
申请号：US16671427
申请日：2019-11-01
申请人： Yuji KIMURA , Riichiro HIBIYA
发明人： Yuji KIMURA , Riichiro HIBIYA
IPC分类号： G02B26/08
摘要： An optical scanning apparatus that oscillates a mirror in at least one direction, includes a mirror driving circuit including a digital-to-analog converter and an amplifier and generating a pair of driving signals for driving the mirror based on digital driving waveform data, a reference waveform data generator generating a reference waveform data, and an offset setting circuit setting an offset value of the reference waveform data, based on a dead band of the amplifier and a periodic integral non-linearity error of the digital-to-analog converter, to generate the driving waveform data.

4. 发明申请

US20180095356A1 OPTICAL SCANNING CONTROL DEVICE 审中-公开
公开(公告)号：US20180095356A1
公开(公告)日：2018-04-05
申请号：US15556333
申请日：2016-02-24
申请人： Yuji KIMURA , Riichiro HIBIYA
发明人： Yuji KIMURA , Riichiro HIBIYA
IPC分类号： G03B33/06 , G03B21/00 , G03B21/28 , G09G3/02 , H04N9/31
CPC分类号： G03B33/06 , G02B26/10 , G03B21/008 , G03B21/28 , G09G3/02 , G09G3/025 , H04N9/3129 , H04N9/3155 , H04N9/3164
摘要： An optical scanning control device includes a scanner that scans light emitted from a laser in accordance with an image signal to form an image on a screen; a first optical detector that detects light scanned by the scanner; a second optical detector that detects light scanned by the scanner; and a controller that controls a deflection angle of the scanner based on a time difference between an output of the first optical detector and an output of the second optical detector.

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