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    • 2. 发明授权
    • Optical lens moving mechanism
    • 光学透镜移动机构
    • US4583827A
    • 1986-04-22
    • US559027
    • 1983-12-07
    • Tomokazu TokunagaJirou KajinoMasataka Izaki
    • Tomokazu TokunagaJirou KajinoMasataka Izaki
    • G02B7/10
    • G02B7/10
    • An optical lens moving mechanism for zoom lens systems using a plane cam is disclosed. A lens system having an optical axis comprises at least two lens groups. A first lens holder and a second lens holder which respectively hold the two lens groups are moved along a guide parallel with the optical axis by a rotational movement of the plane cam which moves on a plane parallel with the optical axis, to zoom the lens system. The mechanism further includes a zooming motor, a position detector, and a controller to control the rotation of the motor, according to the zooming position of the lens system, to achieve a uniform zooming speed.
    • 公开了一种使用平面凸轮的变焦透镜系统的光学透镜移动机构。 具有光轴的透镜系统包括至少两个透镜组。 通过在与光轴平行的平面上移动的平面凸轮的旋转运动,分别保持两个透镜组的第一透镜保持器和第二透镜保持器沿着与光轴平行的引导件移动,以使透镜系统 。 该机构还包括变焦电动机,位置检测器和控制器,以根据透镜系统的变焦位置来控制电动机的旋转,以实现均匀的变焦速度。
    • 10. 发明授权
    • Tape cassette adapter
    • 磁带盒适配器
    • US4479618A
    • 1984-10-30
    • US447898
    • 1982-12-08
    • Takehiro OkadaMasataka IzakiJirou KajinoToshibumi Kamiyama
    • Takehiro OkadaMasataka IzakiJirou KajinoToshibumi Kamiyama
    • G11B23/04G11B23/087G11B25/06G03B1/04G11B15/32
    • G11B25/066G11B23/08778
    • A tape cassette adapter which is useful for a tape recording and/or reproducing apparatus such as a video tape recorder and draws a tape out of a compact cassette by the movement of a tape drawing mechanism from an inoperative position to an operative position. The tape cassette adapter comprises an engaging member which engages to rotate synchronously with a take-up reel drive shaft of the standard size magnetic tape cassette apparatus, a take-up reel drive mechanism for rotating the take-up reel of the compact cassette, and a joint mechanism of rotational power transmission between the rotational member and the take-up reel drive mechanism. Consequently the tape cassette adapter is able to be mounted on apparatuses smoothly, even if the position of the take-up reel drive shaft deviates from a standard position.
    • 一种盒式磁带适配器,其可用于磁带记录和/或再现装置如磁带录像机,并且通过磁带拉伸机构从非操作位置移动到操作位置将带从小型盒中拉出。 带盒适配器包括接合部件,该接合部件与标准尺寸的磁带盒装置的卷取卷轴驱动轴同步旋转,用于旋转小型盒式磁带的卷取卷轴的卷取卷轴驱动机构,以及 在旋转构件和卷取卷轴驱动机构之间的旋转动力传递的联接机构。 因此,即使卷取卷轴驱动轴的位置偏离标准位置,带盒适配器能够平滑地安装在设备上。