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    • 9. 发明授权
    • Exposure multiplication indicating means for automatic exposure setting
camera
    • 曝光倍增指示装置,用于自动曝光设定相机
    • US3947862A
    • 1976-03-30
    • US545508
    • 1975-01-30
    • Koichiro WatanabeTetsuji Shono
    • Koichiro WatanabeTetsuji Shono
    • G03B17/20G03B17/00G03B7/00
    • G03B17/20
    • In one arrangement, the exposure multiplication indicating means includes an exposure multiplication selector dial having a small window cut therein and numerals marked thereon representing exposure multiplication, a film sensitivity dial, and an indicium. Numerals marked on said film sensitivity dial for representing the film sensitivity are observed, one by one, through said small window cut in the exposure multiplication selector dial, and the exposure multiplication is indicated by the numeral which is marked on the exposure multiplication selector dial in alignment with said indicium. In another arrangement, a main switch energizes the automatic exposure setting circuit and also energizes an element indicating the exposure multiplication setting. A source voltage confirming circuit enables the exposure multiplication indicating means to operate only when the source voltage is of a predetermined value.
    • 在一种布置中,曝光倍增指示装置包括具有小窗口的曝光倍增选择器表盘和标记在其上的数字表示曝光倍增,胶片感光度表盘和标记。 通过在曝光倍增选择器表盘中切割的所述小窗口,一个接一个地观察用于表示胶片感光度的所述胶片感光度表盘上标记的数字,曝光倍增由在曝光倍增选择器拨盘上标记的数字表示 与所述标记对齐。 在另一种布置中,主开关为自动曝光设置电路通电,并且激励指示曝光倍增设置的元件。 源电压确认电路使得曝光倍增指示装置仅在源极电压为预定值时才起作用。