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    • 1. 发明授权
    • Method of controlling the zoom lens assembly
    • 控制变焦镜头组件的方法
    • US5170294A
    • 1992-12-08
    • US421613
    • 1989-10-13
    • Keisuke HaraguchiYukio TakaokaShinsuke KohmotoTakeo KobayashiTakayuki ItoTomoaki Kobayashi
    • Keisuke HaraguchiYukio TakaokaShinsuke KohmotoTakeo KobayashiTakayuki ItoTomoaki Kobayashi
    • G02B7/10
    • G02B7/102
    • A method of controlling the focusing of a zoom lens which has a plurality of lens groups including at least one focusing lens group, wherein an amount of deviation from focus caused by a zoom operation is corrected by movement of the focusing lens group. The method includes setting a reference object distance, at which no deviation from focus occurs during zooming of the zoom lens, at a finite object distance, such that the amount of movement of the focusing lens group necessary to effect focusing is determined based upon a reference position corresponding to a position of the focusing lens group at the reference object distance, in accordance with focal length data and object distance data. The zoom lens assembly includes a stationary lens barrel and a rotatable cam ring which is supported on the stationary lens barrel for movement in the direction of the optical axis while being rotated, and which includes at least two cam grooves. The zoom lens includes first and third lens groups which are both movable by one of the two cam groups in a direction of an optical axis. A second lens group movable by a second of the two cam grooves in a direction of the optical axis is also provided, as well as a focusing mechanism for moving the second lens group to a position which is determined by focal length data derived from actual positions of the first, second, and third lens groups and object distance data detected by the object distance measuring device.
    • 一种控制具有包括至少一个聚焦透镜组的多个透镜组的变焦透镜的聚焦的方法,其中通过聚焦透镜组的移动来校正由变焦操作引起的对焦的偏离量。 该方法包括在有限的物体距离处设置在变焦透镜变焦期间不发生偏焦的基准对象距离,使得根据参考确定聚焦透镜组所需的移动量 根据焦距数据和对象距离数据,对应于聚焦透镜组在参考对象距离处的位置的位置。 变焦透镜组件包括固定镜筒和可转动的凸轮环,其被支撑在固定镜筒上,用于在旋转的同时在光轴方向上移动,并且包括至少两个凸轮槽。 变焦透镜包括第一透镜组和第三透镜组,它们都可以通过两个凸轮组中的一个在光轴的方向上移动。 还提供了可沿着光轴方向由两个凸轮槽中的第二个移动的第二透镜组以及用于将第二透镜组移动到由实际位置导出的焦距数据确定的位置的聚焦机构 的第一,第二和第三透镜组以及被物体距离测量装置检测到的物体距离数据。
    • 2. 发明授权
    • Zoom lens barrel
    • US5646790A
    • 1997-07-08
    • US403100
    • 1995-03-13
    • Shinsuke KohmotoTomoaki Kobayashi
    • Shinsuke KohmotoTomoaki Kobayashi
    • G02B7/10G02B7/02
    • G02B7/102
    • A zoom lens assembly includes a stationary lens barrel and a rotatable cam ring which is supported on the stationary lens barrel for movement in the direction of the optical axis while being rotated, and which includes at least two cam grooves. The zoom lens include first and third lens groups which are both moveable by one of the two cam grooves in the direction of the optical axis. A second lens group movable, by a second of the two cam grooves in the direction of the optical axis is also provided, as well as a focusing mechanism, for moving the second lens group to a position which is determined by focal length data derived from actual positions of the first, second, and third lens groups and object distance data detected by an object distance measuring device. A method of controlling focusing of the zoom lens includes correcting an amount of deviation from focus caused by a zooming operation, by moving the focusing lens group. The method includes setting a reference object distance, at which no deviation from focus occurs during zooming of the zoom lens, at a finite object distance, such that the amount of movement of the focusing lens group necessary to effect focusing is determined based upon a reference position corresponding to a position of the focusing lens group at the reference object distance, in accordance with focal length data and object distance data.
    • 3. 发明授权
    • Zoom lens barrel
    • 变焦镜头镜筒
    • US5450242A
    • 1995-09-12
    • US26192
    • 1993-02-26
    • Shinsuke KohmotoTomoaki Kobayashi
    • Shinsuke KohmotoTomoaki Kobayashi
    • G02B7/10G02B15/14
    • G02B7/102
    • A zoom lens assembly includes a stationary lens barrel and a rotatable cam ring which is supported on the stationary lens barrel for movement in the direction of the optical axis while being rotated, and which includes at least two cam grooves. The zoom lens include first and third lens groups which are both movable by one of the two cam grooves in the direction of the optical axis. A second lens group movable, by a second of the two cam grooves in the direction of the optical axis is also provided, as well as a focusing mechanism, for moving the second lens group to a position which is determined by focal length data derived from actual positions of the first, second, and third lens groups and object distance data detected by an object distance measuring device. A method of controlling focusing of the zoom lens includes correcting an amount of deviation from focus caused by a zooming operation, by moving the focusing lens group. The method includes setting a reference object distance, at which no deviation from focus occurs during zooming of the zoom lens, at a finite object distance, such that the amount of movement of the focusing lens group necessary to effect focusing is determined based upon a reference position corresponding to a position of the focusing lens group at the reference object distance, in accordance with focal length data and object distance data.
    • 变焦透镜组件包括固定镜筒和可转动的凸轮环,该旋转凸轮环被支撑在固定镜筒上,用于在旋转的同时在光轴方向上移动,并且包括至少两个凸轮槽。 变焦镜头包括第一透镜组和第三透镜组,它们可以通过两个凸轮槽中的一个在光轴方向上移动。 还提供了可沿着光轴方向由两个凸轮槽中的第二个凹槽移动的第二透镜组,以及聚焦机构,用于将第二透镜组移动到由源于 第一,第二和第三透镜组的实际位置以及物体距离测量装置检测到的物体距离数据。 通过移动聚焦透镜组,控制变焦透镜的聚焦的方法包括校正由缩放操作引起的焦点的偏离量。 该方法包括在有限的物体距离处设置在变焦透镜变焦期间不发生偏焦的基准对象距离,使得根据参考确定聚焦透镜组所需的移动量 根据焦距数据和对象距离数据,对应于聚焦透镜组在参考对象距离处的位置的位置。
    • 4. 发明授权
    • Zoom lens barrel
    • 变焦镜头镜筒
    • US5636063A
    • 1997-06-03
    • US579213
    • 1995-12-28
    • Shinsuke KohmotoTomoaki Kobayashi
    • Shinsuke KohmotoTomoaki Kobayashi
    • G02B7/10G20B15/14
    • G02B7/102
    • A zoom lens assembly includes a stationary lens barrel and a rotatable cam ring which is supported on the stationary lens barrel for movement in the direction of the optical axis while being rotated, and which includes at least two cam grooves. The zoom lens include first and third lens groups which are both moveable by one of the two cam grooves in the direction of the optical axis. A second lens group movable, by a second of the two cam grooves in the direction of the optical axis is also provided, as well as a focusing mechanism, for moving the second lens group to a position which is determined by focal length data derived from actual positions of the first, second, and third lens groups and object distance data detected by an object distance measuring device. A method of controlling focusing of the zoom lens includes correcting an amount of deviation from focus caused by a zooming operation, by moving the focusing lens group. The method includes setting a reference object distance, at which no deviation from focus occurs during zooming of the zoom lens, at a finite object distance, such that the amount of movement of the focusing lens group necessary to effect focusing is determined based upon a reference position corresponding to a position of the focusing lens group at the reference object distance, in accordance with focal length data and object distance data.
    • 变焦透镜组件包括固定镜筒和可转动的凸轮环,该旋转凸轮环被支撑在固定镜筒上,用于在旋转的同时在光轴方向上移动,并且包括至少两个凸轮槽。 变焦镜头包括第一透镜组和第三透镜组,它们可以通过两个凸轮槽中的一个在光轴方向上移动。 还提供了可沿着光轴方向由两个凸轮槽中的第二个凹槽移动的第二透镜组,以及聚焦机构,用于将第二透镜组移动到由源于 第一,第二和第三透镜组的实际位置以及物体距离测量装置检测到的物体距离数据。 通过移动聚焦透镜组,控制变焦透镜的聚焦的方法包括校正由缩放操作引起的焦点的偏离量。 该方法包括在有限的物体距离处设置在变焦透镜变焦期间不发生偏焦的基准对象距离,使得根据参考确定聚焦透镜组所需的移动量 根据焦距数据和对象距离数据,对应于聚焦透镜组在参考对象距离处的位置的位置。
    • 5. 发明授权
    • Zoom lens barrel
    • 变焦镜头镜筒
    • US5434714A
    • 1995-07-18
    • US284047
    • 1994-08-01
    • Shinsuke KohmotoTomoaki Kobayashi
    • Shinsuke KohmotoTomoaki Kobayashi
    • G02B7/10G02B9/08
    • G02B7/102
    • A barrier mechanism for a zoom lens assembly which includes a stationary lens barrel and a rotatable cam ring which is supported on the stationary lens barrel for movement in the direction of the optical axis while being rotated, and which includes at least two cam grooves. The barrier mechanism of the lens barrel includes a pair of barrier plate assemblies which are adapted to open and close an opening of the lens barrel, wherein each of the pair of barrier plate assemblies includes a pair of plate elements which are symmetrically arranged with respect to a center of the opening. In the closed position, the barrier plates are arranged side by side.
    • 一种用于变焦透镜组件的屏障机构,其包括固定透镜镜筒和可转动的凸轮环,其被支撑在固定镜筒上,用于在旋转的同时在光轴方向上移动,并且包括至少两个凸轮槽。 镜筒的阻挡机构包括一对阻挡板组件,其适于打开和关闭透镜镜筒的开口,其中,所述一对阻挡板组件中的每一个包括一对相对于 一个开放的中心。 在关闭位置,阻挡板并排设置。
    • 6. 发明授权
    • Lens shutter camera including zoom lens
    • 镜头快门摄像头包括变焦镜头
    • US5673099A
    • 1997-09-30
    • US462687
    • 1995-06-05
    • Keisuke HaraguchiShinsuke KohmotoTakeo KobayashiShigeru KondohHideki OhkuboNorio NumakoSaburo SugawaraSusao NakamuraHirofumi MatsuoKatsuhiko NomuraEtsuro NishioHaruo Ishii
    • Keisuke HaraguchiShinsuke KohmotoTakeo KobayashiShigeru KondohHideki OhkuboNorio NumakoSaburo SugawaraSusao NakamuraHirofumi MatsuoKatsuhiko NomuraEtsuro NishioHaruo Ishii
    • G02B7/10G02B23/14G03B13/12G03B17/04G03B5/00
    • G03B13/12G02B7/102G03B17/04G02B23/145G03B2215/0503G03B2217/002
    • A lens shutter type of camera is disclosed in which a zoom lens is positioned in a lens block (1) which has a sector gear (15) rotatably associated with the lens block and with a rotatable cam ring (14). The cam ring and sector gear are rotatable in a substantially constant axial position. A movable finder optical assembly (8) and a movable strobe assembly (9) are movable in association with movement of the zoom lens. The zoom lens is movable between an extreme telephoto position and an extreme wide angle position, as well a into a fully collapsed lens position beyond the extreme wide angle position and a macro or close-up photographing position beyond the extreme telephoto position. When the camera is in its macro mode, a prism (P1) is inserted into the finder optical assembly to correct for parallax; the strobe assembly is moved to change its illumination angle; and an optical wedge (4e) is pivoted into the path between a light receiver (4) and a light emitter (3e). A single cam plate (53) is provided to move the finder assembly and the strobe assembly. The photographic aperture (22b) can be selectively closed by barrier plates (31a) when the zoom lens is moved into its fully collapsed position. A light intercepting assembly (210) is provided for preventing light from entering the photographic optical assembly via cam grooves (20 and 21). This intercepting assembly includes a flexible code plate (90) which surrounds a peripheral portion of the cam ring (14) and which provides positional information relating to the position of the zoom lens.
    • 公开了一种镜头遮挡式照相机,其中变焦镜头位于透镜块(1)中,该透镜块具有与透镜块可旋转地相关联的扇形齿轮(15)和可旋转的凸轮环(14)。 凸轮环和扇形齿轮可在基本上恒定的轴向位置旋转。 移动取景器光学组件(8)和可移动闪光灯组件(9)可随变焦镜头的移动而移动。 变焦镜头可以在极端远摄位置和极宽广角位置之间移动,以及超过极宽广角位置的完全折叠的镜头位置以及超过远摄位置的宏观或特写拍摄位置。 当相机处于其微距模式时,将棱镜(P1)插入取景器光学组件中以校正视差; 移动闪光灯组件以改变其照明角度; 并且光楔(4e)枢转到光接收器(4)和光发射器(3e)之间的路径中。 提供单个凸轮板(53)以移动取景器组件和闪光灯组件。 当变焦镜头移动到其完全折叠位置时,照相孔(22b)可以被阻挡板(31a)选择性地关闭。 提供遮光组件(210),用于防止光经由凸轮槽(20和21)进入照相光学组件。 该拦截组件包括围绕凸轮环(14)的周边部分并且提供与变焦镜头的位置相关的位置信息的柔性编码板(90)。
    • 10. 发明授权
    • Barrier mechanism of camera
    • 相机的障碍机制
    • US5130730A
    • 1992-07-14
    • US556376
    • 1990-07-23
    • Haruo IshiiShinsuke KohmotoHiroshi Nomura
    • Haruo IshiiShinsuke KohmotoHiroshi Nomura
    • G03B17/04
    • G03B17/04
    • A barrier mechanism of a camera includes a cylindrical lens cover which has an aperture at its front face and which is supported to move between a photographing position and an accommodating position to the rear of the photographing position. At least one barrier is provided on the front end of the lens cover to open and close the aperture. A barrier opening and closing mechanism which opens and closes the barrier in association with the rotation of a cam ring is further provided. The barrier opening and closing mechanism includes a spring for biasing the barrier towards an open position, and an opening and closing pin which can be moved radially with respect to the lens cover. The pin closes the barrier when moved in the radial direction, and a closing lever is located at a predetermined position outside the lens cover and is biased to rotate to continuously press the opening and closing pin to close the barrier. The cam ring is located to normally prevent contact between the closing lever and the opening and closing pin. The cam ring is provided with an opening which permits the closing lever to rotate toward the opening and closing pin when the lens cover is moved to the accommodating position.