Automatic focus detecting device for camera

摘要: An automatic focus detecting device for a camera comprises lens system having an image plane focusing light transmitted along path, at least one self-scanning type photoelectric converting including plurality of charged storage microphotoelectric elements disposed in element row position corresponding to the system, and scanning circuit state object generate output, detector monitoring incident charge provided near same as storing quantity correspondence light, time which is controlled according stored features. Further features invention include provision contrast providing peak values output differences between two elements, judging indication signal when absolute value difference signals lower than predetermined detection threshold level. Still further effective region circuit, splitter, compensation circuit.