发明名称 Correct exposure annunciator circuit
摘要 Disclosed is a correct exposure annunciator device for cameras including a correct exposure annunciator, a timer for producing a timing signal a certain predetermined time after an exposure control cycle has been finished and a control for operating the correct exposure annunciator in accordance with the generation of a correct exposure representing signal and stopping the correct exposure annunciator with the generation of a timing signal.
申请公布号 US4563071(A) 申请公布日期 1986.01.07
申请号 US19840672856 申请日期 1984.11.19
申请人 CANON KABUSHIKI KAISHA 发明人 KATAOKA, HIROYUKI
分类号 G03B15/05;G03B17/18;H05B41/30;(IPC1-7):G03B15/05 主分类号 G03B15/05
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