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2. 发明授权

US3735686A Camera systems 失效
标题翻译：相机系统
公开(公告)号：US3735686A
公开(公告)日：1973-05-29
申请号：US3735686D
申请日：1971-11-22
申请人： SIDNEY R LITTLEJOHN & CO LTD
发明人： BREWER T , BLUNDELL R
IPC分类号： G03B27/34 , G03B3/00
CPC分类号： G03B27/34
摘要： A constant focus drive apparatus for controlling the positioning of an object and a lens arrangement in a camera system relative to a desired plane so as to keep an image of the object focused in such plane, comprising means e.g. potentiometers for measuring the object and image distances and for producing distance signals representative thereof, drive means e.g. one or more servo systems and/or a manually controlled motor connected to the camera system for varying both the object and image distances, and a computer which may be analogue or digital and may use electricity, pneumatic or hydraulic power, or other powering medium and which is programmed with the lens formula of the camera system to compute, in accordance with the measured values of the object and image distances, a control signal for application to the drive means to alter one or both of said distances as necessary so that the image is kept focused in said plane.
摘要翻译：一种恒定的聚焦驱动装置，用于相对于期望的平面控制相机系统中的物体和透镜装置的定位，以便将物体的图像聚焦在该平面中，用于测量物体和图像距离并用于产生代表其的距离信号的电位器，例如驱动装置。一个或多个伺服系统和/或连接到照相机系统的手动控制的电动机，用于改变物体和图像的距离，以及可以是模拟或数字的并且可以使用电力，气动或水力或其他供电介质的计算机，其被编程为相机系统的镜头公式，以根据对象和图像距离的测量值来计算用于应用于驱动装置以根据需要改变所述距离中的一个或两个的控制信号，使得图像被关注在飞机上。

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