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    Optical deflection device, apparatus including the same, and method of controlling optical deflecting device
    1.
    发明授权
    Optical deflection device, apparatus including the same, and method of controlling optical deflecting device 有权
    光学偏转装置，包括该偏转装置的装置以及光学偏转装置的控制方法

    公开(公告)号：US09291817B2

    公开(公告)日：2016-03-22

    申请号：US14483393

    申请日：2014-09-11

    申请人： Tsuyoshi Hashiguchi ,  Tomofumi Kitazawa ,  Goichi Akanuma

    发明人： Tsuyoshi Hashiguchi ,  Tomofumi Kitazawa ,  Goichi Akanuma

    IPC分类号： G02B26/08 ,  G02B26/10 ,  H04N9/31

    CPC分类号： G02B26/105 ,  G02B26/0858 ,  G02B26/101 ,  H04N9/3135

    摘要： An optical deflecting device includes a mirror having a reflecting surface and a support unit to support the mirror. The support unit includes a first drive unit. The first drive unit includes a plurality of continuously meandering first beams and a plurality of first piezoelectric members respectively provided to the plurality of first beams to swing the mirror around a first axis to deflect light incident on the reflecting surface of the mirror. Two voltages having non-similar waveforms are respectively applied in parallel to each two of the first piezoelectric members respectively provided to adjacent two of the first beams.

    摘要翻译： 光学偏转装置包括具有反射表面的反射镜和用于支撑反射镜的支撑单元。 支撑单元包括第一驱动单元。 第一驱动单元包括多个连续曲折的第一光束和多个第一压电元件，多个第一压电元件分别设置在多个第一光束上以围绕第一轴摆动反射镜以偏转入射在反射镜的反射表面上的光。 具有不相似波形的两个电压分别并行地施加到分别设置到相邻的两个第一光束的每个第一压电元件。

    Deflecting mirror for deflecting and scanning light beam
    2.
    发明授权
    Deflecting mirror for deflecting and scanning light beam 有权
    用于偏转和扫描光束的偏转镜

    公开(公告)号：US08395834B2

    公开(公告)日：2013-03-12

    申请号：US12695522

    申请日：2010-01-28

    申请人： Goichi Akanuma ,  Tomofumi Kitazawa ,  Fumiko Sakoh

    发明人： Goichi Akanuma ,  Tomofumi Kitazawa ,  Fumiko Sakoh

    IPC分类号： G02B26/08

    CPC分类号： G02B26/0858 ,  G02B26/105 ,  H01L41/0933

    摘要： The deflecting mirror includes a fixed base member; a mirror having a reflection surface; a support member swingablly supporting the mirror; a pair of driving beam members, each having a first end connected with the fixed base member and a second end connected with the support member to support the support member from both sides; and a piezoelectric member fixed to each driving beam member and extending from the first or second end of each driving beam member while having length not longer than about half the length of the driving beam member. The piezoelectric member and the driving beam members constitute piezoelectric unimorph or bimorph structure. By applying voltage to the piezoelectric member, the driving beam members are driven at the same time in the same direction, thereby vibrating the support member in a direction perpendicular to the reflection surface of the mirror, resulting in swinging of the mirror.

    摘要翻译： 偏转镜包括固定基座构件; 具有反射面的反射镜; 支撑构件摆动地支撑镜子; 一对驱动梁构件，每个具有与固定基座构件连接的第一端和与支撑构件连接的第二端以从两侧支撑支撑构件; 以及压电构件，其固定到每个驱动梁构件并且从每个驱动梁构件的第一端或第二端延伸，同时具有不大于驱动梁构件的长度的大约一半的长度。 压电构件和驱动梁构件构成压电单压块或双压电晶片结构。 通过向压电构件施加电压，驱动梁构件同时被驱动，沿与垂直于反射镜反射面的方向振动支撑构件，从而使反射镜摆动。

    OPTICAL DEFLECTOR, OPTICAL SCANNER, IMAGE FORMING APPARATUS, AND IMAGE PROJECTOR
    5.
    发明申请
    OPTICAL DEFLECTOR, OPTICAL SCANNER, IMAGE FORMING APPARATUS, AND IMAGE PROJECTOR 有权
    光学偏移器，光学扫描仪，图像形成装置和图像投影仪

    公开(公告)号：US20100309536A1

    公开(公告)日：2010-12-09

    申请号：US12795077

    申请日：2010-06-07

    申请人： Goichi AKANUMA ,  Tomofumi Kitazawa ,  Fumiko Sakoh ,  Mitsumi Fujii

    发明人： Goichi AKANUMA ,  Tomofumi Kitazawa ,  Fumiko Sakoh ,  Mitsumi Fujii

    IPC分类号： G02B26/10

    CPC分类号： G02B26/0858

    摘要： An optical deflector, including a fixed base; a mirror having a light reflection surface; a pair of elastic support members oscillatably supporting the mirror; and a pair of drive beams formed of a beam-shaped member on which a piezoelectric is fixed, wherein the elastic support members and the drive beams in longitudinal directions are almost orthogonally located and connected with each other, other ends of the drive beams are fixed on the fixed base, the mirror and the pair of elastic support members are cantilevered by the pair of drive beams relative to the fixed base, and bending oscillation of the drive beams causes torsional deformation of the elastic members to rotationally oscillate the mirror.

    摘要翻译： 一个光学偏转器，包括一个固定的基座; 具有光反射表面的反射镜; 一对可摆动地支撑镜子的弹性支撑构件; 以及由固定有压电体的梁状构件形成的一对驱动梁，其中弹性支撑构件和纵向方向上的驱动梁几乎正交地定位并相互连接，驱动梁的另一端固定 在固定基座上，反射镜和一对弹性支撑构件通过一对驱动梁相对于固定基座悬臂，并且驱动梁的弯曲振动引起弹性构件的扭转变形以使反射镜旋转地摆动。

    Optical deflection device and image forming apparatus
    6.
    发明授权
    Optical deflection device and image forming apparatus 有权
    光学偏转装置和成像装置

    公开(公告)号：US09448402B2

    公开(公告)日：2016-09-20

    申请号：US14454147

    申请日：2014-08-07

    申请人： Goichi Akanuma ,  Tomofumi Kitazawa

    发明人： Goichi Akanuma ,  Tomofumi Kitazawa

    IPC分类号： G02B26/08 ,  G03G15/04

    CPC分类号： G02B26/0858 ,  G03G15/04036

    摘要： An optical deflection device includes a mirror having a reflection face for deflecting light that enters the reflection face; and a support member to support the mirror including a torsion bar having one end being continuously connected to the mirror; a beam being continuously connected to another end of the torsion bar; and a plurality of piezoelectric elements disposed on the beam including a first piezoelectric element and a second piezoelectric element.

    摘要翻译： 光学偏转装置包括具有用于偏转进入反射面的光的反射面的反射镜; 以及用于支撑所述反射镜的支撑构件，所述支撑构件具有连杆连接到所述反射镜的扭杆; 梁连续地连接到扭杆的另一端; 以及设置在所述梁上的多个压电元件，包括第一压电元件和第二压电元件。

    Camera focus adjusting device for moving an imaging unit
    9.
    发明授权
    Camera focus adjusting device for moving an imaging unit 有权
    用于移动成像单元的摄像机对焦调整装置

    公开(公告)号：US6067421A

    公开(公告)日：2000-05-23

    申请号：US231777

    申请日：1999-01-15

    申请人： Tomofumi Kitazawa ,  Saburoh Sasaki ,  Takashi Shimamura

    发明人： Tomofumi Kitazawa ,  Saburoh Sasaki ,  Takashi Shimamura

    IPC分类号： G02B7/04 ,  G03B13/34

    CPC分类号： G02B7/04 ,  H04N5/2253 ,  H04N5/23212

    摘要： A focus adjusting device which includes an imaging unit, such as a lens group, a film, a charge coupled device, a CMOS sensor, etc., and at least one electrostriction unit deforming based on an applied voltage and configured to move the imaging unit from the deforming. Further, positioned between the imaging unit and the at least one electrostriction unit is a mechanism for increasing or accumulating the deforming of the at least one electrostriction unit. The electrostriction unit can take the form of a laminate piezoelectric device. In one specific embodiment, the mechanism provided between the imaging unit and the at least one electrostriction unit is a lever which increases the deforming of the at least one electrostriction unit. In another embodiment, at least two electrostriction units are utilized and the mechanism provided between the at least two electrostriction units and the imaging unit is a coupling between the at least two electrostriction units which accumulates the deforming of each of the at least two electrostriction units. According to a further embodiment, the mechanism provided between the imaging unit and the at least one electrostriction unit is an elastic member with curved portions which increase the deforming of the at least one electrostriction unit in a direction perpendicular to a direction of the deforming of the at least one electrostriction unit.

    摘要翻译： 一种聚焦调节装置，其包括诸如透镜组，胶片，电荷耦合器件，CMOS传感器等的成像单元，以及至少一个基于所施加的电压变形的电致伸缩单元，并被配置成使成像单元 从变形。 此外，位于成像单元和至少一个电致伸缩单元之间的是用于增加或累积至少一个电致伸缩单元的变形的机构。 电致伸缩单元可以采用叠层压电装置的形式。 在一个具体实施例中，设置在成像单元和至少一个电子吸引单元之间的机构是增加至少一个电致伸缩单元的变形的杠杆。 在另一个实施例中，使用至少两个电致伸缩单元，并且在所述至少两个电子吸引单元和成像单元之间提供的机构是所述至少两个电致伸缩单元之间的耦合，所述至少两个电致伸缩单元累积所述至少两个电致伸缩单元中的每一个。 根据另一实施例，设置在成像单元和至少一个电致伸缩单元之间的机构是具有弯曲部分的弹性构件，其弯曲部分增加了至少一个电致伸缩单元在垂直于变形的方向的方向上的变形 至少一个电致伸缩单元。

    Optical deflector, optical scanner, image forming apparatus, and image projector
    10.
    发明授权
    Optical deflector, optical scanner, image forming apparatus, and image projector 有权
    光学偏转器，光学扫描仪，图像形成装置和图像投影仪

    公开(公告)号：US08174750B2

    公开(公告)日：2012-05-08

    申请号：US12795077

    申请日：2010-06-07

    申请人： Goichi Akanuma ,  Tomofumi Kitazawa ,  Fumiko Sakoh ,  Mitsumi Fujii

    发明人： Goichi Akanuma ,  Tomofumi Kitazawa ,  Fumiko Sakoh ,  Mitsumi Fujii

    IPC分类号： G02B26/08

    CPC分类号： G02B26/0858

    摘要： An optical deflector, including a fixed base; a mirror having a light reflection surface; a pair of elastic support members oscillatably supporting the mirror; and a pair of drive beams formed of a beam-shaped member on which a piezoelectric is fixed, wherein the elastic support members and the drive beams in longitudinal directions are almost orthogonally located and connected with each other, other ends of the drive beams are fixed on the fixed base, the mirror and the pair of elastic support members are cantilevered by the pair of drive beams relative to the fixed base, and bending oscillation of the drive beams causes torsional deformation of the elastic members to rotationally oscillate the mirror.

    摘要翻译： 一个光学偏转器，包括一个固定的基座; 具有光反射表面的反射镜; 一对可摆动地支撑镜子的弹性支撑构件; 以及由固定有压电体的梁状构件形成的一对驱动梁，其中弹性支撑构件和纵向方向上的驱动梁几乎正交地定位并相互连接，驱动梁的另一端固定 在固定基座上，反射镜和一对弹性支撑构件通过一对驱动梁相对于固定基座悬臂，并且驱动梁的弯曲振动引起弹性构件的扭转变形以使反射镜旋转地摆动。