发明名称 Exposure control device for camera
摘要 <p>The present invention relates to an exposure control device employed in an electronically controlled camera having a zoom lens and at least a strobe exposure mode and a non-strobe exposure mode. The device has a means for changing over between the non-strobe exposure mode and the strobe exposure mode at a predetermined threshold value of brightness of an object to be photographed. The predetermined threshold value for change-over between said non-strobe exposure mode and said strobe exposure mode is adjusted in accordance with a focal length of the zoom lens. <IMAGE></p>
申请公布号 GB2274173(B) 申请公布日期 1994.09.28
申请号 GB19940002974 申请日期 1994.02.15
申请人 * ASAHI KOGAKU KOGYO KABUSHIKI KAISHA 发明人 TAKEO * KOBAYASHI;YASUSHI * TABATA;NORIO * NUMAKO;KATSUTOSHI * NAGAI
分类号 G03B7/08;G03B7/16;G03B7/20;(IPC1-7):G03B15/05 主分类号 G03B7/08
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