发明名称 AUTOMATIC FOCUS ADJUSTING DEVICE
摘要 PURPOSE:To reduce the possibility of having defocused photographing by driving a photographing lens by a prescribed length of time when the defocused value of the lens exceeds a previously set defocused value, and after reducing the defocused value, executing shutter releasing operation. CONSTITUTION:A defocused value obtained at the execution of the shutter releasing operation is calculated by a defocused value calculating means and compared with a defocused value previously set up by a comparing means. When the calculated defocused value is <=the previously set defocused value, that the photographing lens is located on a focusing position is decided and the shutter releasing operation is immediately executed. In other cases, the lens is driven by a control means by a prescribed time and then the shutter releasing operation is executed.
申请公布号 JPS62269937(A) 申请公布日期 1987.11.24
申请号 JP19870107109 申请日期 1987.04.28
申请人 MINOLTA CAMERA CO LTD 发明人 HAMADA MASATAKA;ISHIBASHI KENJI;ISHIDA TOKUJI;TANIGUCHI NOBUYUKI;OTSUKA HIROSHI
分类号 G02B7/28;G03B3/00;G03B13/36 主分类号 G02B7/28
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