<p>A camera which has an objective and a photosensitive device capable of receiving light which has travelled through the objective. This photosensitive device receives light created during preparatory flash illumination and forms part of a preparatory circuit for creating an electrical quantity which achieves a peak value during the preparatory flash illumination. A memory device such as a capacitor retains this peak value and is then used together with a control circuit to terminate flash illumination during a subsequent main flash which provides illumination during film exposure. Thus, the duration of the main flash is determined in accordance with the peak value retained by the memory device.</p>
申请公布号
DE2309170(B2)
申请公布日期
1974.11.28
申请号
DE19732309170
申请日期
1973.02.23
申请人
ASAHI KOGAKU KOGYO K.K., TOKIO
发明人
TOKUTOMI, SEIJITO, FUJISAWA, KANAGAWA;KAWASAKI, MASAHIRO, TOKIO
