CAMERA RANGE DETERMINATION SYSTEM

摘要

A system for determining the range to an object utilizing a plurality of radiation responsive detectors such as charge coupled devices arranged in groupings where a first grouping of detectors receives radiation from the object primarily through a first portion of a lens and a second grouping of the detectors receives radiation from the object primarily through a ??cond portion of the lens. There is a predetermined relationship between the outputs of the detectors in the first grouping with respect to the detectors in the second grouping when the object is at a predetermined range and changes i? the range of the object produce charges in the relationship so as to produce a resultant signal which varies with the range and which may be used for the automatic focussing of photographic or television cameras.