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    • 2. 发明授权
    • Actuator
    • 执行器
    • US06459855B1
    • 2002-10-01
    • US09567478
    • 2000-05-08
    • Akira KosakaJunichi TaniiYoshiharu TanakaShoichi Minato
    • Akira KosakaJunichi TaniiYoshiharu TanakaShoichi Minato
    • G03B1503
    • G03B17/38G03B9/08
    • An actuator applied with shape memory alloy which can be operated in a wide operating temperature range and has a long life time. At a normal ambient temperature, when the first wire of the acting member made of shape memory alloy in which predetermined shape is memorized in advance, is heated, it is transformed to the memorized shape to enable the acting member to be moved. A relative low stress is generated at the first wire and its life-time is not shortened. In the case that the ambient temperature is increased to exceed a transformation starting temperature of the shape memory alloy, the second wire of shape memory alloy is transformed to the memorized shape to generate a high stress at the first wire and to increase the transformation starting temperature of the first wire. With such an arrangement as above, it is possible to operate the actuator applied with the shape memory alloy in a wide operating temperature range.
    • 适用于形状记忆合金的致动器,其可在宽的工作温度范围内操作并且具有长的使用寿命。 在正常环境温度下,当预先形成有预定形状的形状记忆合金制成的作用构件的第一线被加热时,其被转换成记忆形状以使作用构件能够移动。 在第一根导线处产生相对较低的应力,其寿命不会缩短。 在环境温度升高到超过形状记忆合金的变形开始温度的情况下,形状记忆合金的第二丝线被转换为记忆形状,以在第一丝线处产生高应力并增加转变开始温度 的第一根线。 通过上述这样的布置,可以在宽的工作温度范围内对施加有形状记忆合金的致动器进行操作。
    • 3. 发明授权
    • Image shake correcting optical apparatus
    • 图像抖动校正光学装置
    • US6157779A
    • 2000-12-05
    • US320870
    • 1999-05-27
    • Akira KosakaJunichi TaniiYoshihiro HaraYoshiharu TanakaShoichi Minato
    • Akira KosakaJunichi TaniiYoshihiro HaraYoshiharu TanakaShoichi Minato
    • G03B17/00G02B27/64G03B5/00
    • G02B27/646G03B5/00G03B2205/0015G03B2205/0076G03B2217/005
    • To provide an image shake correcting optical apparatus using a small, lightweight engaging mechanism for the correction lens holder engaging mechanism. A ring-shaped engaging member 16 formed of shape memory alloy and having three engaging arms on its inside is located outside a lens holder 11 for a correction lens L3, and the engaging contacts 16b at the tips of the engaging arms 16a are pushed toward the center of the ring-shaped engaging member by means of coil springs 17. The engaging member 16 formed of shape memory alloy has a prescribed memorized shape so that the arms 16a will assume a retracted position, and where no heat is applied, the engaging contacts 16b of the engaging arms press onto the lens holder 11 for the correction lens L3 from the outside due to the spring force of the coil springs 17, and engages with and maintains in place the lens holder 11. Where heat is applied, the engaging arms 16a retract, whereupon the engagement of the lens holder 11 is terminated.
    • 提供一种使用用于校正透镜保持器接合机构的小而轻的接合机构的图像抖动校正光学装置。 由形状记忆合金形成并且在其内部具有三个接合臂的环形接合构件16位于用于校正透镜L3的透镜保持器11的外侧,并且接合臂16a的顶端处的接合触头16b被推向 由形状记忆合金形成的接合构件16具有规定的记忆形状,使得臂16a处于缩回位置,并且在不施加热的情况下,接合触点 16b的接合臂由于螺旋弹簧17的弹力而从外部压到用于校正透镜L3的透镜保持器11上,并且与透镜保持器11接合并保持在适当位置。在施加热量的情况下,接合臂 16a缩回,结束透镜保持架11的接合。
    • 7. 发明授权
    • Camera including an improved drive mechanism
    • 相机包括改进的驱动机制
    • US06210048B1
    • 2001-04-03
    • US09164575
    • 1998-10-01
    • Yoshiharu TanakaJunichi TaniiIkushi Nakamura
    • Yoshiharu TanakaJunichi TaniiIkushi Nakamura
    • G03B100
    • G03B17/425
    • A camera has at least one motor, a spindle gear (i.e. a gear having a spindle) for rewinding and thrusting a film, a cam that rotates together with the spindle gear when the spindle gear is rotated in a film-rewinding direction and that remains at rest when the spindle gear is rotated in a film-thrusting direction, a direction-limiting mechanism for permitting the spindle gear to rotate in the film-rewinding direction only when the motor is rotating in a forward direction, and a transmission mechanism that comes into contact with the cam when the motor is rotating in a reverse direction and that, when the cam is in one of predetermined rotation positions, engages with and thereby transmits a driving force of the motor to a corresponding one of driven members provided one for each of the predetermined rotation positions. In this camera, paths for transmitting the driving force of the motor are switched by first rotating the spindle gear in the film-rewinding direction to bring the cam into one of the predetermined rotation positions and then reversing a rotation direction of the motor.
    • 照相机具有至少一个电动机,主轴齿轮(即,具有主轴的齿轮),用于重绕和推动胶片;当主轴齿轮沿着胶片倒带方向旋转并且保持时,凸轮与主轴齿轮一起旋转的凸轮 当主轴齿轮沿胶片推动方向旋转时,静止时,只有当电机正向旋转时才允许主轴齿轮沿胶片卷绕方向旋转的方向限制机构和传递机构 当电动机沿相反方向旋转时,与凸轮接触,并且当凸轮处于预定旋转位置之一时,与凸轮接合并由此将电动机的驱动力传递到相应的驱动构件 的预定旋转位置。 在该照相机中,通过首先使胶片重放方向上的主轴齿轮旋转来切换用于传递电动机的驱动力的路径,以使凸轮进入预定旋转位置之一,然后反转电动机的旋转方向。
    • 10. 发明授权
    • Lens driving controller
    • 镜头驱动控制器
    • US6104880A
    • 2000-08-15
    • US328789
    • 1999-06-09
    • Hironori KamishitaHiroshi UedaYoshiharu TanakaJunichi Tanii
    • Hironori KamishitaHiroshi UedaYoshiharu TanakaJunichi Tanii
    • G03B13/36G02B7/08G02B7/09G02B7/28G02B7/34G03B13/34
    • G02B7/08
    • A lens driving controller has a driving mechanism for driving a lens along an optical axis, a calculator for obtaining a lens driving amount to an in-focus position, and a detector for detecting a position of the lens. The controller drives the lens in an in-focus direction in accordance with a lens driving amount obtained by the calculator, drives the lens in an opposite direction when the lens reaches a first lens position where a remaining driving amount to the in-focus position is a predetermined value, obtains information on a second lens position when the lens actually starts to move in the opposite direction, obtains a lens movement amount from the first lens position and the second lens position and performs remaining driving to the in-focus position and stop control based on an obtained lens movement amount.
    • 透镜驱动控制器具有用于沿光轴驱动透镜的驱动机构,用于获得对焦位置的透镜驱动量的计算器和用于检测透镜位置的检测器。 控制器根据由计算器获得的透镜驱动量在对焦方向上驱动透镜,当镜头到达第一透镜位置时,以相反的方向驱动透镜,其中对焦位置的剩余驱动量为 当透镜实际开始相反方向移动时获得关于第二透镜位置的信息,从第一透镜位置和第二透镜位置获得透镜移动量,并执行剩余驱动到对焦位置并停止 基于获得的镜头移动量进行控制。