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    • 7. 发明授权
    • Lens barrel and optical apparatus
    • 镜筒和光学装置
    • US07423822B2
    • 2008-09-09
    • US11715913
    • 2007-03-09
    • Masanori MiyauchiYasuhide Takahashi
    • Masanori MiyauchiYasuhide Takahashi
    • G02B7/02
    • G02B7/10G02B7/102
    • The present invention is directed to a lens barrel that is simplified in structure with the reduced number of components and is facilitated in assembly and associated adjustment. The lens barrel enables an appropriate frictional force against the rotation force caused by manipulating rotary operation rings such as a zooming ring and a focusing ring to effect the optimum operating force on the rotary operation rings. In the lens barrel where a fixed barrel has its inner and outer circumferential surfaces provided with at least two slidable-rotatable members that are rotatably held about the optical axis but unable to move along the optical axis, an annular member is secured to the fixed barrel between the slidable-rotatable members, the annular member being pivotal about the optical axis and being provided with resilient protrusions on the opposite major surfaces toward the subject and the image field; and the resilient protrusions are pressed against a rear end face of one of the slidable-rotatable members closer to the subject and against a fore end face of the other slidable-rotatable member closer to the image field.
    • 本发明涉及一种透镜镜筒,其结构简化,部件数量减少,并且易于组装和相关调整。 透镜筒能够抵抗由操纵旋转操作环(例如变焦环和聚焦环)引起的旋转力的适当摩擦力,以实现旋转操作环上的最佳操作力。 在透镜筒中,固定筒的内周面和外圆周表面设置有至少两个可旋转地保持在光轴上但不能沿光轴移动的可滑动旋转构件,环形构件固定到固定筒 在所述可滑动旋转构件之间,所述环形构件绕所述光轴枢转并且在朝向所述被摄体和所述图像场的相对主表面上设置有弹性突起; 并且弹性突起压靠在靠近被摄体的一个可滑动旋转部件的后端面上,并抵靠靠近图像场的另一个可滑动旋转部件的前端面。
    • 9. 发明申请
    • Lens barrel and optical apparatus
    • 镜筒和光学装置
    • US20070217036A1
    • 2007-09-20
    • US11715913
    • 2007-03-09
    • Masanori MiyauchiYasuhide Takahashi
    • Masanori MiyauchiYasuhide Takahashi
    • G02B7/02
    • G02B7/10G02B7/102
    • The present invention is directed to a lens barrel that is simplified in structure with the reduced number of components and is facilitated in assembly and associated adjustment. The lens barrel enables an appropriate frictional force against the rotation force caused by manipulating rotary operation rings such as a zooming ring and a focusing ring to effect the optimum operating force on the rotary operation rings. In the lens barrel where a fixed barrel has its inner and outer circumferential surfaces provided with at least two slidable-rotatable members that are rotatably held about the optical axis but unable to move along the optical axis, an annular member is secured to the fixed barrel between the slidable-rotatable members, the annular member being pivotal about the optical axis and being provided with resilient protrusions on the opposite major surfaces toward the subject and the image field; and the resilient protrusions are pressed against a rear end face of one of the slidable-rotatable members closer to the subject and against a fore end face of the other slidable-rotatable member closer to the image field.
    • 本发明涉及一种透镜镜筒,其结构简化,部件数量减少,并且易于组装和相关调整。 透镜筒能够抵抗由操纵旋转操作环(例如变焦环和聚焦环)引起的旋转力的适当摩擦力,以实现旋转操作环上的最佳操作力。 在透镜筒中,固定筒的内周面和外圆周表面设置有至少两个可旋转地保持在光轴上但不能沿光轴移动的可滑动旋转构件,环形构件固定到固定筒 在所述可滑动旋转构件之间,所述环形构件绕所述光轴枢转并且在朝向所述被摄体和所述图像场的相对主表面上设置有弹性突起; 并且弹性突起压靠在靠近被摄体的一个可滑动旋转部件的后端面上,并抵靠靠近图像场的另一个可滑动旋转部件的前端面。