发明名称 AUTO-FOCUSING DEVICE
摘要 PURPOSE:To improve the operability of the titled device in a continuous photographing state of a camera by inhibiting searching operation in the continuous photographing state. CONSTITUTION:When the output of a sensor device SNS is in a low contrast because the defocused value of a photographing lens is high, so-called 'searching operation' expecting the rise of the contrast of an object while driving the photographing lens independently of a detected result is executed. If the search ing operation is executed when the low contrast state is generated even in the focusing operation during continuous photographing, a using state following up the moving object in the continuous photographing state is often generated, so that the maneuverability is extremely deteriorated. Thereby, a microcomputer PRS inhibits the searching operation when the camera is in the continuous photographing state. Consequently, the operability in the continuous photo graphing state can be improved.
申请公布号 JPS63172232(A) 申请公布日期 1988.07.15
申请号 JP19870004577 申请日期 1987.01.12
申请人 CANON INC 发明人 AKASHI AKIRA
分类号 G03B13/36;G02B7/28;G03B3/00 主分类号 G03B13/36
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