发明名称 FOCUS DETECTION DEVICE
摘要 PURPOSE:To provide a focus detection device capable of detecting a focusing point of an intended subject even when perspective subjects exist in a finder view. CONSTITUTION:A pair of subject luminous fluxes passing through a photographing lens are received, and two image signals are outputted to a CPU 1 by a pair of line sensors 4. The CPU 1 divides the image signals to plural view blocks, and operates a matching degree between two images at every view block, and outputs a reliable value for evaluating the operation result of the matching degree between two images. Then, the CPU 1 evaluates the matching degree between two images and the reliable value, and selects a focus detection view based on the view block in which the matching degree between two images and the reliable value are satisfied with a prescribed condition, and detects the focusing point by the view.
申请公布号 JPH0815604(A) 申请公布日期 1996.01.19
申请号 JP19940149342 申请日期 1994.06.30
申请人 OLYMPUS OPTICAL CO LTD 发明人 MUSASHI TAKESHI
分类号 G03B13/36;G02B7/34;(IPC1-7):G02B7/34 主分类号 G03B13/36
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