会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明授权
    • Photographic camera system
    • 照相机系统
    • US5196880A
    • 1993-03-23
    • US593980
    • 1990-10-09
    • Kenji IshibashiMinoru KuwanaYasuaki SeritaTetsuya ArimotoHiroshi OotsukaYoshihiro HaraHiroshi UedaMasayuki Ueyama
    • Kenji IshibashiMinoru KuwanaYasuaki SeritaTetsuya ArimotoHiroshi OotsukaYoshihiro HaraHiroshi UedaMasayuki Ueyama
    • G02B7/10
    • G02B7/102
    • A camera system which comprises a photo-taking lens assembly of varifocal type including a zooming lens and a focusing lens; a manipulatable member; a zooming drive device for driving the zooming lens during a manipulation of the manipulatable member; a focusing device for driving the focusing lens; a focal length detector for sequentially detecting a current focal length of the photo-taking lens assembly; a zooming amount calculator operable to repeatedly add or subtract a predetermined amount to or from the current focal length during the manipulation of the manipulatable member thereby to sequentially update a target focal length used as a reference for the drive of the zooming lens; a first control adapted to receive the target focal length updated by the zooming amount calculator for calculating the amount of deviation in focus which would occur before the target focal length is attained and also for controlling the focusing device so as to eliminate the amount of deviation in focus which has been calculated; and a second control for controlling the zooming drive device, when the manipulation of the manipulatable member is released, so as to drive the zooming lens to a position where the target focal length calculated by the zooming amount calculator is attained.
    • 一种照相机系统,包括变焦镜头类型的摄影镜头组件,包括变焦镜头和聚焦透镜; 一个可操纵的成员; 用于在可操纵构件的操纵期间驱动变焦镜头的变焦驱动装置; 用于驱动聚焦透镜的聚焦装置; 用于顺序地检测所述摄影镜头组件的当前焦距的焦距检测器; 变焦量计算器,其可操作以在操纵可操纵构件期间反复地向或从当前焦距增加或减去预定量,从而顺序地更新用作变焦透镜驱动的基准的目标焦距; 适于接收由变焦量计算器更新的目标焦距的第一控制器,用于计算在达到目标焦距之前将发生的焦点偏离量,并且还用于控制聚焦装置,以消除偏转量 已计算的重点; 以及第二控制,用于当解除可操纵构件的操纵时,控制变焦驱动装置,以便将变焦透镜驱动到达到由变焦量计算器计算的目标焦距的位置。