Actuator with a viscoelastic connecting element

    公开(公告)号:US11791703B2

    公开(公告)日:2023-10-17

    申请号:US17494777

    申请日:2021-10-05

    发明人: Masaaki Ando

    IPC分类号: H02K33/18 H04R23/00 G08B6/00

    CPC分类号: H02K33/18 G08B6/00 H04R23/00

    摘要: The actuator includes a magnetic drive mechanism to relatively move the movable body with respect to the support body. The magnetic drive mechanism has a magnet and a coil. The connecting element connected to the support body and the movable body is a viscoelastic member. The viscoelastic member has a temperature characteristic that a loss tangent (Tan δ) thereof measured by a dynamic viscoelasticity measurement decreases as a temperature rises. When using a silicone gel as the connecting element, the decrease in the peak value of the acceleration of the movable body caused by the decrease in the current flowing through the coil is cancelled by the increase in the peak value of the acceleration of the movable body caused by the decrease in Tan δ of the silicone gel. Therefore, the oscillation of the movable body is unchanged even if a temperature changes.

    Actuator with connection body having viscoelasticity and an air passage through the partition part

    公开(公告)号:US11843298B2

    公开(公告)日:2023-12-12

    申请号:US17242274

    申请日:2021-04-27

    IPC分类号: H02K33/18

    CPC分类号: H02K33/18

    摘要: An actuator includes a support body, a movable body, a connection body connected with the support body and the movable body and provided with at least one of elasticity and viscoelasticity, and a magnetic drive mechanism structured to relatively move the movable body with respect to the support body. The connection body is disposed in a space in a radial direction between an inner side ring-shaped part provided in one of the movable body and the support body and an outer side ring-shaped part provided in the other of the movable body and the support body. The inner side ring-shaped part, the outer side ring-shaped part and the connection body structure a partition part which partitions an inside space of the case, and the partition part includes an air passage which is penetrated through the partition part in an axial line direction so that air resistance can be reduced.

    Optical device
    5.
    发明授权
    Optical device 有权
    光学装置

    公开(公告)号:US09500856B2

    公开(公告)日:2016-11-22

    申请号:US14529660

    申请日:2014-10-31

    摘要: An optical device may include a flat optical member; a reinforcement member which is bonded to a back side of the optical member and demonstrates stronger rigidity in a center area thereof than two side portions thereof when curved in a thickness direction in a first direction within an in-plane direction; and a driving device which switches a shape of the optical member together with the reinforcement member between a flat state and a curved state in which the optical member is curved in the first direction.

    摘要翻译: 光学装置可以包括平面光学构件; 加强构件,其在所述光学构件的背面接合,并且在其面积方向上沿着第一方向在厚度方向上弯曲时,比其两个侧部具有比其中心区域更强的刚性; 以及驱动装置,其将光学构件的形状与加强构件一起在平坦状态和光学构件沿第一方向弯曲的弯曲状态之间切换。

    Actuator
    6.
    发明授权
    Actuator 有权

    公开(公告)号:US12046974B2

    公开(公告)日:2024-07-23

    申请号:US17614376

    申请日:2020-05-18

    摘要: In an actuator, damper members which connect a movable member and a fixed member are arranged at two places between the end portion of the shaft of the movable member on an L1 side and the opening portion of the first holder of the fixed member and between the end portion of the shaft of the movable member on an L2 side and the opening portion of a second holder. Each of the damper members includes a gel damper member serving as a connection member which is continuously arranged in a gap in a radial direction between the movable member and the fixed member over the entire circumference. In the gel damper member, an inner circumferential portion is fixed to the shaft through a cylindrical first member, and an outer circumferential portion is fixed to the fixed member through a cylindrical second member.