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    • 2. 发明授权
    • Imaging unit and imaging device
    • 成像单元和成像设备
    • US08717486B2
    • 2014-05-06
    • US13121816
    • 2009-09-24
    • Akira KosakaYasutaka TanimuraTakashi MatsuoNatsuki Yamamoto
    • Akira KosakaYasutaka TanimuraTakashi MatsuoNatsuki Yamamoto
    • H04N5/225H01L23/12
    • H04N5/2254G02B7/02G02B13/004G02B13/006G03B3/10H01L27/14618H01L27/14625H01L2924/0002H04N5/2251H01L2924/00
    • A technique of enabling both of higher functionality and higher accuracy in a compact optical system is provided. To achieve this object, an imaging unit has a laminated structure formed by laminating a plurality of layers including: an image capturing element layer including an image capturing element part; a lens layer capable of changing a distance from the image capturing element layer; and an actuator layer including a movable part for moving the lens layer; and a signal transmitter disposed so as to connect the actuator layer and the image capturing element layer, and transmitting a drive signal for driving the movable part from the image capturing element layer side to the actuator layer, and the movable part is deformed according to the drive signal transmitted through the signal transmitter, and the actuator layer is provided between the image capturing element layer and the lens layer.
    • 提供了一种在紧凑型光学系统中实现更高功能和更高精度的技术。 为了实现该目的,成像单元具有通过层叠多个层而形成的层叠结构,包括:包括图像捕获元件部分的图像捕获元件层; 能够改变与摄像元件层的距离的透镜层; 以及致动器层,其包括用于移动透镜层的可移动部分; 以及信号发送器,其设置成连接致动器层和摄像元件层,并且将用于将可移动部件驱动的驱动信号从摄像元件层侧传递到致动器层,并且可动部分根据 驱动信号通过信号发送器传输,并且致动器层设置在图像捕获元件层和透镜层之间。
    • 3. 发明授权
    • Lens driving device and camera unit
    • 镜头驱动装置和相机单元
    • US08379334B2
    • 2013-02-19
    • US12999506
    • 2009-06-05
    • Takashi MatsuoAkira KosakaYasutaka TanimuraNatsuki Yamamoto
    • Takashi MatsuoAkira KosakaYasutaka TanimuraNatsuki Yamamoto
    • G02B7/02
    • G02B7/08
    • A biasing spring is interposed between a coupling plate and a covering section while being compressed from its natural length. The biasing spring biases, by its resilient force, a lens unit toward a −Z side to bring a surface of the lens unit at the −Z side into contact with an abutment portion of a fixing frame section. When a temperature of an actuator is equal to or lower than a predetermined temperature, a biasing force of the biasing spring surpasses a force generated in the actuator, and thus the lens unit is not moved. When the actuator is heated up to a temperature equal to or higher than the predetermined temperature, the lens unit is continuously moved in the +Z direction. Thereby, movement of a lens due to a change of an environmental temperature can be prevented.
    • 偏置弹簧被插入耦合板和覆盖部分之间,同时从其自然长度被压缩。 偏置弹簧通过其弹性力将透镜单元朝向-Z侧偏压以使透镜单元的表面在-Z侧与固定框架部分的抵接部分接触。 当致动器的温度等于或低于预定温度时,偏置弹簧的偏压力超过致动器中产生的力,因此透镜单元不移动。 当致动器被加热到​​等于或高于预定温度的温度时,透镜单元在+ Z方向上连续移动。 由此,能够防止由于环境温度的变化引起的透镜的移动。
    • 6. 发明申请
    • DRIVE DEVICE
    • 驱动装置
    • US20110032628A1
    • 2011-02-10
    • US12863928
    • 2009-01-22
    • Yasutaka TanimuraYasuhiro HondaNatsuko ShiotaYoshihiro Hara
    • Yasutaka TanimuraYasuhiro HondaNatsuko ShiotaYoshihiro Hara
    • G02B7/02
    • F03G7/065G02B7/028G02B7/08
    • A drive device includes a setting unit 12 for setting a control value using a control value-displacement characteristic at a predetermined reference temperature showing a relationship between a control value used to position a movable unit 5 and a displacement of the movable unit 5; a drive unit 20 for supplying drive power corresponding to the control value set by the setting unit 12 to a shape-memory alloy 1 and causing the shape-memory alloy 1 to expand or contract, thereby positioning the movable unit 5; and a correction unit 13 for correcting the control value so as to correct a position shift of the movable unit 5 from a target position resulting from a difference between a control value-displacement characteristic at an ambient temperature and a control value-displacement characteristic at the reference temperature based on the ambient temperature detected by a temperature detection unit 11.
    • 驱动装置包括设置单元12,用于使用表示用于定位可移动单元5的控制值与可移动单元5的位移之间的关系的预定参考温度下的控制值 - 位移特性来设定控制值; 驱动单元20,用于将对应于由设置单元12设置的控制值的驱动力提供给形状记忆合金1,并使形状记忆合金1膨胀或收缩,从而定位可移动单元5; 以及校正单元13,用于校正控制值,以便根据环境温度下的控制值 - 位移特性与控制值 - 位移特性之间的差异来校正可移动单元5从目标位置的位置偏移 基于由温度检测单元11检测到的环境温度的基准温度。
    • 7. 发明授权
    • Actuator, drive device, and imaging device
    • 执行器,驱动装置和成像装置
    • US08421908B2
    • 2013-04-16
    • US13260557
    • 2010-03-16
    • Akira KosakaYasutaka TanimuraTakashi MatsuoNatsuki Yamamoto
    • Akira KosakaYasutaka TanimuraTakashi MatsuoNatsuki Yamamoto
    • H04N5/232H04N5/228G03B15/00G03B17/00H01L21/00
    • F03G7/065
    • An object of the present invention is to provide an actuator allowing a control of displacement and configured to offer a high degree of freedom in designing, and a drive device and an imaging device including the actuator. To achieve the object, an actuator is adopted including a movable part deformable in accordance with heat generation and a control section controlling the amount of deformation of the movable part. In the actuator, the movable part is structured with a plurality of portions including a base portion, a force generating portion, and a heat generating portion being stacked, the force generating portion generating force in accordance with heating, the heat generating portion generating heat in accordance with a current supply. The control section controls the amount of deformation of the movable part by controlling the current supply to the heat generating portion based on an electrical resistance in the heat generating portion.
    • 本发明的目的是提供一种执行器,其允许控制位移并且被配置为在设计中提供高自由度,以及驱动装置和包括致动器的成像装置。 为了实现该目的,采用了一种致动器,包括可根据发热变形的可移动部件和控制可移动部件的变形量的控制部件。 在致动器中,可移动部分由多个部分构成,该多个部分包括基部,力产生部分和发热部分,所述力产生部分根据加热产生力,所述发热部分产生热量 按照目前的供应。 控制部通过基于发热部的电阻控制向发热部的供给来控制可动部的变形量。