초록 ▼

An automatic focusing position detection apparatus of a double image overlapping type having a plurality of photoelectric element groups capable of detecting rays of light from an object separately, which can detect the focusing position from the output signals from the photoelectric element groups,

An automatic focusing position detection apparatus of a double image overlapping type having a plurality of photoelectric element groups capable of detecting rays of light from an object separately, which can detect the focusing position from the output signals from the photoelectric element groups, and which includes a shifting circuit capable of shifting the output signals from one photoelectric element group relative to the output signals of other photoelectric group, and a circuit for calculating the defocusing distance by obtaining the correlation degree of the output signals of the photoelectric element groups which are shifted relatively to each other by the shifting circuit, and by obtaining the shift distance by the shifting circuit.

대표청구항 ▼

An automatic focusing position detection apparatus including a plurality of photoelectric element groups, each photoelectric element group capable of separately detecting light from an object, which is capable of detecting the focusing position by the output of said plurality of photoelectric elemen

An automatic focusing position detection apparatus including a plurality of photoelectric element groups, each photoelectric element group capable of separately detecting light from an object, which is capable of detecting the focusing position by the output of said plurality of photoelectric element groups, comprising: shift means for shifting the output signals from a first photoelectric element group of said photoelectric element groups relative to the output signals of a second photoelectric element group of said photoelectric element groups; and defocusing distance calculation means for calculating a defocusing distance from the correlation degree between the output signals of said first photoelectric element group and the output signals of said second photoelectric element group, which are relatively shifted to each other by said shift means, and from the relative shift distance of said two photoelectric element groups, wherein said defocusing distance calculation means comprises an integration device for multiplying the difference between the outputs of each pair of photoelectric elements of said first photoelectric element group and said second photoelectric element group which are relatively shifted to each other and integrating said difference.