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    • 1. 发明授权
    • Zoom lens for cameras
    • 镜头变焦镜头
    • US4541695A
    • 1985-09-17
    • US491351
    • 1983-05-04
    • Ronald C. WainwrightNicholas M. GoyJohn D. AndersonRobert M. PettigrewJohn D. Bradbrook
    • Ronald C. WainwrightNicholas M. GoyJohn D. AndersonRobert M. PettigrewJohn D. Bradbrook
    • G03B5/00G02B7/08G02B7/10G02B15/14
    • G02B7/102
    • A camera zoom lens system comprising; means for generating and storing a first information signal representing a predetermined position of the first movable lens group, means for generating a second information signal whose value determines a relationship between the respective positions of said first and second movable lens groups, first computing means for deriving from the stored first information signal a third signal representing the position to which the second movable lens group must move so that both lens groups produce an in-focus image of the object at infinity, second computing means responsive to the first and second information signals for generating a correction signal which when combined with the third signal produces an output signal representing the position to which the second movable lens group must move so that both lens groups will produce an in-focus image of an object at a specified distance, third computing means responsive to the correction signal and the third signal for generating and storing a fourth signal for the second movable lens group; sensing means for producing additional information signals relating to the actual positions of said lens groups, a central processor unit responsive to the first, fourth and additional signals for producing two error signals corresponding to any discrepancy between the actual positions of said lens groups and the positions represented by said first and fourth signals respectively, and means responsive to said error signals for moving the lens groups respectively to positions corresponding to said first and fourth signals.
    • 一种相机变焦透镜系统,包括: 用于生成和存储表示第一可移动透镜组的预定位置的第一信息信号的装置,用于产生其值确定所述第一和第二可移动透镜组的各个位置之间的关系的第二信息信号的装置,用于导出 从所存储的第一信息信号中,代表第二可移动透镜组必须移动的位置的第三信号,使得两个透镜组在无穷远处产生物体的对焦图像,第二计算装置响应于第一和第二信息信号, 生成校正信号,当与第三信号组合时产生表示第二可移动透镜组必须移动的位置的输出信号,使得两个透镜组将以特定距离产生对象的对焦图像,第三计算装置 响应于校正信号和用于产生和存储af的第三信号 第二个可移动透镜组的信号; 感测装置,用于产生与所述透镜组的实际位置相关的附加信息信号;响应于第一,第四和附加信号的中央处理器单元,用于产生对应于所述透镜组的实际位置与位置之间的任何差异的两个误差信号 由所述第一和第四信号分别表示,以及响应于所述误差信号的装置,分别将透镜组移动到对应于所述第一和第四信号的位置。
    • 3. 发明授权
    • Sorting machine
    • 分拣机
    • US4699273A
    • 1987-10-13
    • US676889
    • 1984-11-30
    • Furio Suggi-LiveraniWilliam S. MaughanRonald C. Wainwright
    • Furio Suggi-LiveraniWilliam S. MaughanRonald C. Wainwright
    • B07C5/342
    • B07C5/366B07C5/3425
    • A sorting machine is disclosed for sorting objects by examining light from the objects in at least two different parts of the spectrum. The objects to be sorted are fed to a viewing zone where they are illuminated in at least two different parts of the spectrum. The objects passing through the viewing zone are viewed against at least one background which is illuminated by at least first and second lighting units which are separate from the lighting employed to illuminate the viewing zone, the first and second lighting units being respectively arranged to cause the respective background to emit light in the at least two different parts of the spectrum. A discriminator is employed for determining whether objects which have been so viewed are desired, and there is an object separator controlled by the discriminator, for effecting relative separation between desired and undesired objects.
    • 公开了一种用于通过在光谱的至少两个不同部分检查来自物体的光来对物体进行分类的分选机。 要分类的对象被馈送到观看区域,在该区域中它们被照射在光谱的至少两个不同部分。 通过观察区域的物体被观察到至少一个由至少第一和第二照明单元照亮的背景,该第一和第二照明单元与用于照亮观察区的照明分开,第一和第二照明单元分别布置成使得 各自的背景在光谱的至少两个不同部分发光。 使用鉴别器来确定是否期望已经被观看的对象,并且存在由鉴别器控制的对象分离器,以实现期望的和不期望的对象之间的相对间隔。