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    • 24. 发明授权
    • Lens drive mechanism
    • 镜头驱动机构
    • US06795251B2
    • 2004-09-21
    • US09960382
    • 2001-09-24
    • Hiroshi NomuraTakamitsu SasakiKazunori IshizukaMaiko Takashima
    • Hiroshi NomuraTakamitsu SasakiKazunori IshizukaMaiko Takashima
    • G02B1514
    • G02B7/10
    • A lens drive mechanism includes first and second sub-lens group frames for supporting first and second sub-lens groups; a support frame for supporting the first and second sub-lens group frames; a first linear guide mechanism which linearly guides the first sub-lens group frame and prevents rotation thereof; a second linear guide mechanism which linearly guides the second sub-lens group frame, while limiting rotation thereof, at two extremities of rotation thereof; a lens frame shift mechanism for causing the first and second sub-lens group frames to move to the mutually close or distant position; and a linear displacement mechanism which integrally moves the first and second sub-lens group frames in the optical axis direction, in the mutually close or distant position. A linear guide clearance of the first linear guide mechanism is larger than a linear guide clearance of the second linear guide mechanism.
    • 透镜驱动机构包括用于支撑第一和第二子透镜组的第一和第二子透镜组框架; 用于支撑第一和第二子透镜组框架的支撑框架; 第一线性引导机构,其直线地引导第一子透镜组框架并防止其旋转; 第二线性引导机构,在其第二子透镜组框架的两端旋转的同时限制其旋转; 用于使第一和第二子透镜组框架移动到相互靠近或远离位置的透镜框架移动机构; 以及在相互接近或远离的位置使第一和第二子透镜组框架在光轴方向上整体移动的线性位移机构。 第一线性引导机构的线性引导间隙大于第二线性引导机构的线性引导间隙。
    • 25. 发明授权
    • Lens barrel
    • 镜筒
    • US06751032B2
    • 2004-06-15
    • US10283244
    • 2002-10-30
    • Hiroshi NomuraTakamitsu SasakiKazunori Ishizuka
    • Hiroshi NomuraTakamitsu SasakiKazunori Ishizuka
    • G02B702
    • G02B7/102
    • A lens barrel includes cam ring which is rotated about an optical axis to move a lens group in the optical axis direction, and a rotational ring which transfers a rotational motion to the cam ring. The rotational ring includes a rotation-transmission arm extending in the optical axis direction. The cam ring includes a bottomed engaging recess which is formed on an outer peripheral surface of the cam ring. The rotation-transmission arm is slidably inserted to be movable in the optical axis direction. The rotation-transmission arm and the engaging recess include a guide groove which extends parallel to the optical axis and a guide projection which is engaged in the guide groove, respectively or vice versa, the rotational ring transferring rotational motion thereof to the cam ring via engagement of the guide groove with the guide projection.
    • 镜筒包括围绕光轴旋转以使透镜组沿光轴方向移动的凸轮环和将旋转运动传递到凸轮环的旋转环。 旋转环包括沿光轴方向延伸的旋转传递臂。 凸轮环包括形成在凸轮环的外周表面上的有底接合凹部。 旋转传递臂可滑动地插入以在光轴方向上移动。 旋转传递臂和接合凹部包括平行于光轴延伸的引导槽和分别与导向槽接合的引导突起,反之亦然,旋转环通过接合将其旋转运动传递到凸轮环 的导向槽与引导突起。
    • 26. 发明授权
    • Lens guide mechanism
    • 镜头引导机构
    • US06721111B2
    • 2004-04-13
    • US10101377
    • 2002-03-20
    • Hiroshi NomuraTakamitsu SasakiKazunori IshizukaMaiko Takashima
    • Hiroshi NomuraTakamitsu SasakiKazunori IshizukaMaiko Takashima
    • G02B702
    • G02B7/026G02B7/021G02B7/023
    • A lens guide mechanism includes a lens frame which supports a photographing lens group, the lens frame including a plurality of guide holes extending in a direction parallel with an optical axis; a support barrel in which the lens frame is provided; a gear holding member which is provided at a front end of the support barrel; a gear train which is held between the support barrel and the gear holding member, the gear train constituting a drive mechanism for the lens frame; and a plurality of linear movement guide rods provided in the gear holding member, which extend through the guide holes of the lens frame and support the lens frame to move linearly in the optical axis direction relative to the support barrel.
    • 透镜引导机构包括支撑拍摄透镜组的透镜框,所述透镜框包括沿与光轴平行的方向延伸的多个导向孔; 其中设置有透镜框架的支撑筒; 齿轮保持构件,其设置在所述支撑筒的前端; 保持在支撑筒和齿轮保持构件之间的齿轮系,构成用于透镜框的驱动机构的齿轮系; 以及设置在所述齿轮保持构件中的多个线性运动导杆,其延伸穿过所述透镜框架的所述引导孔并且支撑所述透镜框架以相对于所述支撑筒沿光轴方向线性移动。
    • 27. 发明授权
    • Lens barrel
    • 镜筒
    • US06717744B2
    • 2004-04-06
    • US10283230
    • 2002-10-30
    • Hiroshi NomuraTakamitsu SasakiKazunori Ishizuka
    • Hiroshi NomuraTakamitsu SasakiKazunori Ishizuka
    • G02B1514
    • G02B7/021G02B7/04
    • A lens barrel includes front and rear lens group frames, and a cam ring having a cam groove including a front-lens-group accommodation portion, a rear-lens-group-accommodation portion having a straight connecting portion connected to the front-lens-group accommodation portion, and an end portion. The front lens group frame is linearly guided and the rear lens group frame is relatively rotatably supportable and linearly guidably supportable. Rotation of the rear lens group frame is allowed when first and second followers are positioned in the front and rear-lens-group accommodation portions. When the cam ring is rotated from the accommodation portions, upon the rear lens group frame being switched from the relatively rotatable state to the linearly guidable state, the second follower rotates together with the cam ring while the second follower is positioned in the rear-lens-group accommodation portion or in the vicinity of the straight connecting portion.
    • 透镜镜筒包括前透镜组框架和后透镜组框架,以及具有凸轮槽的凸轮环,凸轮槽包括前透镜组容纳部分,后透镜组容纳部分,其具有连接到前透镜组容纳部分的直连接部分, 组合部分和端部。 前透镜组框架被线性引导,后透镜组框架相对可旋转地支撑并且线性地可引导地支撑。 当第一和第二从动件位于前透镜组容纳部和后透镜组容纳部中时,允许后透镜组框的旋转。 当凸轮环从容纳部分旋转时,在后透镜组框架从相对可旋转状态切换到线性引导状态时,第二从动件与凸轮环一起旋转,而第二从动件位于后透镜 - 群容纳部分或直线连接部分附近。
    • 29. 发明授权
    • Zoom lens mechanism
    • 变焦镜头机构
    • US06680804B2
    • 2004-01-20
    • US09960309
    • 2001-09-24
    • Hiroshi NomuraTakamitsu SasakiKazunori IshizukaMaiko Takashima
    • Hiroshi NomuraTakamitsu SasakiKazunori IshizukaMaiko Takashima
    • G02B1514
    • G02B7/09
    • A zoom lens mechanism includes a switching lens group frame supporting a first sub-lens group frame and a second sub-lens group frame which support first and second sub-sub-lens groups, respectively; a lens group shift mechanism for causing the first and second sub-lens group frames to linearly move to a mutually close position or a mutually distant position, with respect to the optical axis direction, in accordance with relative rotation between the first sub-lens group frame and the second sub-lens group frame; and a focusing mechanism which integrally moves the first sub-lens group frame and the second sub-lens group frame in the optical axis direction while maintaining a distance therebetween after the first and the second sub-lens group frames are moved to one of the mutually close position and the mutually distant position by the lens group shift mechanism.
    • 变焦透镜机构包括支撑第一子透镜组框架的切换透镜组框架和分别支撑第一子像素组和第二子透镜组的第二子透镜组框架; 透镜组移动机构,用于使第一和第二子透镜组框架相对于光轴方向线性地移动到相互关闭位置或相互远离的位置,这是根据第一子透镜组 框架和第二子透镜组框架; 以及聚焦机构,其在第一和第二子透镜组框架移动到相互之一中之后,在第一子透镜组框架和第二子透镜组框架之间沿光轴方向一体地移动,同时保持其间的距离 关闭位置和透镜组移动机构相互远离的位置。
    • 30. 发明授权
    • Zoom lens barrel
    • 变焦镜头镜筒
    • US06392828B1
    • 2002-05-21
    • US09695030
    • 2000-10-25
    • Hiroshi NomuraNobuaki AokiTakamitsu SasakiKazunori Ishizuka
    • Hiroshi NomuraNobuaki AokiTakamitsu SasakiKazunori Ishizuka
    • G02B702
    • G02B7/102
    • A zoom lens barrel includes a cylindrical member which is provided with a female helicoid; a split helicoid cylinder having a rear helicoid ring portion which is provided with a male helicoid which is screw-engaged with the female helicoid, and a front cylindrical portion which is detachably connected to the rear helicoid ring portion so as not to relatively rotate; a linear movement cylinder provided in the split helicoid cylinder so as to move in the optical axis direction; and a connecting structure for connecting the linear movement cylinder to the split helicoid cylinder so as to relatively rotate and so as not to relatively move in the optical axis direction, so that the rear helicoid ring portion and the front cylindrical portion of the split helicoid cylinder maintain connected by the connecting structure without being disconnected in the optical axis direction.
    • 变焦镜筒包括:圆柱形构件,其具有阴螺纹; 具有后螺旋环部分的分离螺旋形圆柱体,其具有与雌螺旋形螺纹接合的阳螺旋体;以及前圆柱形部分,其可拆卸地连接到后螺旋形环部分以不相对旋转; 设置在所述分离螺旋状圆柱体中以沿光轴方向移动的线性运动缸; 以及连接结构,用于将直线运动缸连接到分离的螺旋形圆柱体,以便相对旋转并且不沿光轴方向相对移动,使得后螺旋形环部分和分离螺旋状圆柱体的前圆筒部分 通过连接结构保持连接而不在光轴方向断开。