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公开(公告)号：US5041855A
公开(公告)日：1991-08-20
申请号：US479208
申请日：1990-02-14
申请人： Kazumitsu Takezawa , Hideo Kanno , Sachio Ohmori
发明人： Kazumitsu Takezawa , Hideo Kanno , Sachio Ohmori
CPC分类号： G02B7/102
摘要： A lens assembly for an automatic focusing camera having an automatic focusing mode and a manual focusing mode comprises an optical system including a lens group shiftable along an optical axis to perform a focusing operation, a focusing operation member rotatable around the optical axis to shift the lens group along the optical axis to perform the focusing operation, a power drive device for power driving the focusing operation member, a focusing handling member rotatable around the focusing operation member to perform the focusing operation manually, a connection element including a plurality of engaging recesses formed in an outer periphery of the focusing operation member at predetermined intervals in a circumferential direction, and a connecting member shiftable in a radial direction to engage with one of the recesses, the connecting element being adapted to transmit the rotation of the manual focusing handling member to the focusing operation member through the connecting member, and a changing-over device for changing over between a manual focusing mode position where the connecting member is engaged by one of the recesses and an automatic focusing mode position where the connecting member is disengaged from the recess.
摘要翻译： 一种具有自动对焦模式和手动对焦模式的自动聚焦照相机的镜头组件，包括：一个光学系统，包括一个能够沿光轴移动的透镜组，以进行聚焦操作;聚焦操作构件可围绕光轴旋转以移动透镜 沿着光轴组合以执行聚焦操作，用于驱动聚焦操作构件的动力驱动装置，可围绕聚焦操作构件旋转的聚焦操作构件，用于手动执行聚焦操作;连接元件，包括形成的多个接合凹部 在圆周方向上以预定间隔的聚焦操作构件的外周中，并且连接构件沿径向方向可移动以与凹部中的一个接合，所述连接元件适于将手动聚焦处理构件的旋转传递到 聚焦操作构件通过连接构件， 以及用于在连接构件与其中一个凹部接合的手动聚焦模式位置与连接构件与凹部脱离的自动聚焦模式位置之间切换的切换装置。
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公开(公告)号：US06742940B2
公开(公告)日：2004-06-01
申请号：US10230023
申请日：2002-08-29
IPC分类号： G03B1704
CPC分类号： G03B11/045
摘要： A shading device employed in a lens barrel having a plurality of lens groups includes a plurality of substantially tubular shading members provided between a first lens group and a second lens group that move relative to each other along the optical axis and overlap each other along the optical axis so as to allow the shading device to achieve a telescopic function.
摘要翻译： 在具有多个透镜组的透镜镜筒中使用的遮光装置包括多个基本上管状的遮光部件，设置在第一透镜组和第二透镜组之间，该第一透镜组和第二透镜组沿着光轴相对于彼此相对移动并沿光学重叠 以允许遮光装置实现伸缩功能。
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公开(公告)号：US06239923B1
公开(公告)日：2001-05-29
申请号：US09384343
申请日：1999-08-27
申请人： Kazumitsu Takezawa
发明人： Kazumitsu Takezawa
IPC分类号： G02B900
摘要： A lens barrel including an iris stop unit which is easily secured in the lens barrel. The lens barrel includes a lens group holding frame fixed by screws to a moving tube which holds a lens group in a manner freely slidable in a forward or backward direction. A support ring is formed integrally with the moving tube, and the support ring, along with blades and a drive ring forms an iris stop unit. The blades and the drive ring are set at a designated position and the lens group holding frame is inserted into the moving tube and connected by screws. The drive ring is held by the front end of the lens group holding frame.
摘要翻译： 镜筒包括易于固定在镜筒中的光圈停止单元。 镜筒包括通过螺钉固定到移动管的透镜组保持框架，该移动管以可向前或向后方向自由滑动的方式保持透镜组。 支撑环与移动管一体地形成，并且支撑环与叶片和驱动环一起形成虹膜停止单元。 刀片和驱动环设置在指定位置，镜头组保持框架插入移动管中，并通过螺丝连接。 驱动环由镜头组保持框架的前端固定。
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公开(公告)号：US5815094A
公开(公告)日：1998-09-29
申请号：US958478
申请日：1997-10-28
CPC分类号： G01D5/24476 , G01D5/2492 , G01D5/25 , H03M1/1076 , H03M1/245
摘要： A position detecting device comprises a pattern member having conductive patterns arranged in plural tracks; a slidable member having plural sliding pieces capable of sliding on the conductive patterns, wherein each of the sliding pieces assumes either a conductive state in contact with one of the conductive patterns or a non-conductive state not in contact with the conductive pattern; a signal processing device for detecting sets of the conductive patterns and the sliding pieces in conductive state, by transmitting electrical signals through the conductive patterns and the sliding pieces; and a discriminating device for identifying the relative position between the conductive patterns and the sliding pieces when the the conductive patterns and the sliding pieces in conductive state are detected at least a predetermined number of times or over at least a predetermined period of time.
摘要翻译： 位置检测装置包括具有布置在多个轨道中的导电图案的图案部件; 具有能够在导电图案上滑动的多个滑动件的滑动构件，其中每个滑动件呈现与导电图案之一接触的导电状态或不与导电图案接触的非导电状态; 信号处理装置，用于通过传导电信号通过导电图案和滑动片来检测导电图案和导电状态下的滑块的组; 以及鉴别装置，用于在至少预定次数或至少预定时间段内检测导电图案和处于导通状态的滑动片时，识别导电图案和滑动片之间的相对位置。
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公开(公告)号：US06542313B2
公开(公告)日：2003-04-01
申请号：US09995651
申请日：2001-11-29
IPC分类号： G02B1514
CPC分类号： G02B7/102
摘要： A position detecting device is used with a lens barrel that includes an optical system, an optical system driving member that moves at least part of the optical system, and a driving force transmitting member that transmits rotational driving force from a driving source to the optical system driving member. The position detecting device includes a linear moving member that converts rotational motion of the driving force transmitting member into a linear motion, and a detector that detects the linear movement of the linear moving member. This arrangement is capable of providing a very compact structure. The driving force transmitting member can be a rotating shaft-like member that rotates through at least one rotation. The position detecting device also can include a backlash eliminating member (e.g., a spring) that eliminates a backlash between the driving force transmitting member and the linear moving member.
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公开(公告)号：US5926323A
公开(公告)日：1999-07-20
申请号：US842571
申请日：1997-04-15
申请人： Kazumitsu Takezawa
发明人： Kazumitsu Takezawa
CPC分类号： G02B7/102
摘要： In a lens barrel which drives a focusing optical system using only one set of a cam groove and a cam pin engaged with the cam groove, the cam groove and the cam pin jointly defining a zooming operation and a focusing operation of the focusing optical system, to increase an automatic focusing speed, there is provided with a manual driving section rotated around an optical axis, an automatic driving section rotated around the optical axis and a rotation straight advance converting section for driving the focusing optical system after converting the rotational motion of the manual driving section or the automatic driving section into a straight advance motion by using only set of the cam groove and the cam pin for jointly defining the zooming and focusing operations of the focusing optical system. The manual driving section, the automatic driving section and the rotation straight advance converting section are interlocked with one another. A power transmitting member for directly transmitting power from the automatic driving section to the rotation straight advance converting section without passing this through the manual driving section is provided.
摘要翻译： 在仅使用一组凸轮槽和与凸轮槽接合的凸轮销驱动聚焦光学系统的镜筒中，凸轮槽和凸轮销共同限定聚焦光学系统的变焦操作和聚焦操作， 为了提高自动对焦速度，设置有围绕光轴旋转的手动驱动部，围绕光轴旋转的自动驱动部，以及旋转直线前进转换部，用于在转换旋转运动之后驱动聚焦光学系统 手动驱动部分或自动驱动部分通过仅使用一组凸轮槽和凸轮销来进行直线前进运动，以共同定义聚焦光学系统的变焦和聚焦操作。 手动驱动部，自动驱动部和旋转直前进转换部彼此互锁。 提供了一种用于将动力从自动驱动部分直接传递到旋转直线前进转换部分而不通过手动驱动部分的动力传递部件。
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公开(公告)号：US6002532A
公开(公告)日：1999-12-14
申请号：US89135
申请日：1998-06-02
申请人： Kazumitsu Takezawa
发明人： Kazumitsu Takezawa
CPC分类号： G02B7/09
摘要： There is disclosed a lens barrel which comprises a supporting frame for supporting lens groups, a cam barrel to be rotated around the optical axis to move the supporting frame in the direction of the optical axis in a predetermined range, a manual focusing ring to which the operator supplies a manual power, a manual power transmission mechanism to be moved by the manual power supplied to the manual focusing ring to rotate the cam barrel, a first limitation member for inhibiting the power transmission from the manual focusing ring to the cam barrel by limiting the movement of the manual power transmission mechanism when the supporting frame is moved to a vicinity of one end of the predetermined range by the rotation of the cam barrel, a motor power transmission mechanism for transmitting the motive power supplied from the motor to the cam barrel so as to rotate the cam barrel, and a second limitation member for limiting the rotation of the cam barrel, wherein the second limitation member is provided at a position for limiting the rotation of the cam barrel at the same time as or after the first limitation member limits the movement of the manual power transmission mechanism while the supporting frame is moving toward one end of the predetermined range.
摘要翻译： 公开了一种镜筒，其包括用于支撑透镜组的支撑框架，围绕光轴旋转以使支撑框架沿光轴方向移动到预定范围的凸轮筒，手动聚焦环，其中 操作者提供手动动力，通过提供给手动聚焦环的手动动力来移动手动动力传递机构以旋转凸轮筒，第一限制构件，用于通过限制来阻止从手动聚焦环向凸轮筒的动力传递 当通过凸轮筒的旋转将支撑框架移动到预定范围的一端附近时，手动动力传递机构的移动;电动机动力传递机构，用于将从电动机供给的动力传递到凸轮筒 以便旋转凸轮筒，以及用于限制凸轮筒的旋转的第二限制构件，其中第二限制membe r设置在用于在支撑框架朝向预定范围的一端移动的同时限制第一限制构件限制手动动力传递机构的移动的同时或之后限制凸轮筒的旋转的位置。
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8.发明授权Lens barrel having a biasing member to prevent backlash between lens unit cam mechanisms 失效透镜筒具有偏置构件，以防止透镜单元凸轮机构之间的间隙
公开(公告)号：US5627683A
公开(公告)日：1997-05-06
申请号：US571762
申请日：1995-12-13
申请人： Kazumitsu Takezawa
发明人： Kazumitsu Takezawa
CPC分类号： G02B7/10
摘要： A lens barrel which has a lens holding member for holding a lens unit, a movement cam mechanism for moving the lens holding member in an optical-axis direction, a biasing member for biasing the lens holding member to shift a slide allowance of the movement cam mechanism in one direction, a biasing force receiving member for receiving a biasing force of the biasing member and a biasing force adjustment cam mechanism for moving the biasing force receiving member in the optical-axis direction so that the biasing force of the biasing member remains the same.
摘要翻译： 具有用于保持透镜单元的透镜保持构件的镜筒，用于使透镜保持构件沿光轴方向移动的移动凸轮机构，用于偏置透镜保持构件以偏移移动凸轮的滑动容限的偏置构件 一个方向的机构，用于接收偏置构件的偏置力的偏置力接收构件和用于使偏置力接收构件沿光轴方向移动的偏置力调节凸轮机构，使得偏置构件的偏置力保持为 相同。
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