会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明公开
    • MIRROR DRIVE DEVICE AND DRIVE METHOD THEREFOR
    • SPIEGELANTRIEBSVORRICHTUNG UND ANTRIEBSVERFAHRENDAFÜR
    • EP3203298A4
    • 2017-09-20
    • EP15847123
    • 2015-09-29
    • FUJIFILM CORP
    • NAONO TAKAYUKI
    • G02B26/08B81B3/00G02B26/10H01L41/04H01L41/09H01L41/113H01L41/187H02N2/00
    • G02B26/105B81B3/00G02B26/08G02B26/10H01L41/042H01L41/0933H01L41/0946H01L41/0993H01L41/1132H01L41/18H01L41/1876
    • Provided are a mirror driving device and a driving method thereof capable of improving a displacement efficiency and obtaining a sufficiently large displacement angle even in a case where a sensor part is provided. A piezoelectric actuator part 16 which generates a driving force to rotate a mirror part 12 about a rotation axis R A includes a first actuator part 30 and a second actuator part 40 having a both-end supported beam structure in which base end parts on both sides in an axial direction of the rotation axis R A are fixed. Upper electrodes and lower electrodes of the first actuator part 30 and the second actuator part 40 are divided to correspond to a stress distribution of principal stresses in a piezoelectric body during resonance mode vibration, a piezoelectric portion corresponding to positions of a first piezoelectric conversion part 81 and third piezoelectric conversion parts 103A and 103B and a piezoelectric portion corresponding to positions of second piezoelectric conversion parts 82A and 82B and a fourth piezoelectric conversion part 104 generate stresses in opposite directions.
    • 本发明提供一种镜子驱动装置及其驱动方法,即使在设置有传感器部的情况下,也能够提高位移效率并且获得足够大的位移角。 产生使镜部12绕旋转轴线RA旋转的驱动力的压电致动器部16包括第一致动器部30和第二致动器部40,该第一致动器部30和第二致动器部40具有两端支撑梁结构, 旋转轴线RA的轴向被固定。 第一致动器部分30和第二致动器部分40的上电极和下电极被分成与谐振模式振动期间压电体中的主应力的应力分布相对应,压电部分对应于第一压电转换部分81的位置 并且与第二压电转换部分82A和82B以及第四压电转换部分104的位置对应的第三压电转换部分103A和103B以及压电部分产生相反方向的应力。
    • 5. 发明授权
    • DOUBLE ELECTROMECHANICAL ELEMENT
    • DOUBLE电子机械元件
    • EP1350275B1
    • 2011-07-20
    • EP01271663.5
    • 2001-12-05
    • PiezoMotor Uppsala Aktiebolag
    • JOHANSSON, Stefan
    • H01L41/09
    • H02N2/021H01L41/0946H02N2/0015
    • The present invention discloses motors using electromechanical, preferably piezoelectric, monolithic elements (30). The element (30) comprises at least two movable parts or displacement portions (32A, 32B) interconnected by a passive part (31). Each displacement section (32A, 32B) comprises at least one unimorph or preferably bimorph (33A, 33B), where the active volumes extend in parallel out from the passive part (31), and so are the electrodes 12) arranged between the electromechanical layers. The displacement portions (32A, 32B) are positioned in substantially the same plane and parallel to the body (20) to be moved. Contact portions are arranged at the central passive part (31) and at the displacement portions (32A, 32B). The central contract portion is an actuating surface (34C) and the other are attaching portions (36A, 36B) for attachment to a stator (24). The attaching portions (36A, 36B) are fixed to the stator (24) with respect of motion in a main displacement direction (X) of the body (20). The actuating surface (34C) is movable relative to the attaching portions (36A, 36B9 in two dimensions.