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    • 85. 发明授权
    • Camera having a power zoom function
    • 相机具有电动变焦功能
    • US5697000A
    • 1997-12-09
    • US283667
    • 1994-08-01
    • Yoshihiro HaraKenji IshibashiKimiharu AkahoshiNorihiko Akamatsu
    • Yoshihiro HaraKenji IshibashiKimiharu AkahoshiNorihiko Akamatsu
    • G02B7/10G03B1/18G03B7/00
    • G02B7/10
    • A camera is provided with a varifocal lens including a zoom lens system driven by a motor and by a zoom lens drive control section and a focusing lens system driven by a motor and by a focusing lens drive control section for performing focusing before the zoom lens system is driven or while the zoom lens system is being driven. The camera is also provided with a lens switch sensor for determining whether an operation member for starting an exposure operation has been operated or not and a body control section and a lens control section for halting the driving of the zoom lens system when it is determined that the operation member has been operated by the sensor to re-start the driving of the focusing lens system.
    • 相机设置有变焦透镜,该变焦透镜包括由电动机驱动的变焦透镜系统和变焦透镜驱动控制部以及由电动机驱动的聚焦透镜系统以及用于在变焦透镜系统之前进行聚焦的聚焦透镜驱动控制部 被驱动或当变焦镜头系统被驱动时。 相机还设置有用于确定用于开始曝光操作的操作构件是否已被操作的镜头开关传感器以及当确定变焦镜头系统的驱动时停止变焦镜头系统的驱动的身体控制部分和镜头控制部分 操作部件已由传感器操作,以重新开始聚焦透镜系统的驱动。
    • 86. 发明授权
    • Film winding/rewinding mechanism of camera
    • 相机的卷绕/倒带机构
    • US5467158A
    • 1995-11-14
    • US249681
    • 1994-05-26
    • Nobuharu MurashimaKenji IshibashiDai ShintaniNobuyuki Taniguchi
    • Nobuharu MurashimaKenji IshibashiDai ShintaniNobuyuki Taniguchi
    • G03B17/42G03B1/18
    • G03B17/425
    • A film winding/rewinding mechanism of a camera driven by an ultrasonic wave motor. The winding driving section includes a cylindrical spool and a cylindrical first ultrasonic wave vibrator provided in the spool. A roller urged by a leaf spring is pressed against the peripheral surface of the spool, so that the peripheral surface of the vibrator contacts the inner surface of the spool at a point in the circumferential direction thereof. The film rewinding driving section includes a film rewinding fork, a cylindrical member mounted on the periphery of the rewinding fork, and a cylindrical second ultrasonic wave vibrator provided between the rewinding fork and the cylindrical member. The diameter of the outer circumference of the second ultrasonic wave vibrator is greater than the diameter of the outer circumference of the first vibrator. In winding/rewinding the film, the cylindrical member is urged by the tension of the film, so that the peripheral surface of the cylindrical member contacts the peripheral surface of the second vibrator contacts at a point in the circumferential direction thereof. In winding the film, a voltage is applied to the first vibrator to rotate the spool. In rewinding the film, a voltage is applied to the second vibrator to rotate the fork.
    • 由超声波马达驱动的相机的胶片卷绕/倒带机构。 卷绕驱动部分包括设置在卷轴中的圆柱形卷轴和圆柱形第一超声波振动器。 由片簧推动的辊被压靠在卷轴的周面上,使得振动器的周面在其圆周方向的一点处接触卷轴的内表面。 回卷驱动部分包括一个胶片倒带叉,一个安装在倒卷叉的周边的圆柱形部件,以及设置在该卷绕叉和该圆筒形部件之间的一个圆柱形的第二超声波振动器。 第二超声波振动器的外周的直径大于第一振动器的外周的直径。 在卷绕/重绕薄膜时,筒状构件被薄膜的张力推压,圆筒构件的圆周面在圆周方向的一点处与第二振子接触件的周面接触。 在卷绕薄膜时,向第一振动器施加电压以旋转卷轴。 在重卷胶片时,向第二振动器施加电压以旋转叉。