发明名称 Shutter speed setting and display apparatus
摘要 A shutter speed setting and display apparatus for use with a single-lens reflex camera comprises a shutter speed variation apparatus, a shutter speed setting apparatus and a shutter speed display apparatus. The shutter speed variation apparatus produces count signals and applies the signals to the shutter speed setting apparatus for setting the shutter speed and, as the shutter speed display apparatus, a digital display apparatus can be employed, which displays either a shutter speed set by the shutter speed variation apparatus or a shutter speed determined by an automatic exposure measurement circuit or both. To this shutter speed setting and display apparatus, a flashlight source detecting apparatus and a shutter speed restricting apparatus can be attached for restricting the shutter speed to be set by the shutter speed which is to be set by the shutter speed variation apparatus in a synchronizing range of the flashlight source with a shutter of the camera.
申请公布号 US4345826(A) 申请公布日期 1982.08.24
申请号 US19790107404 申请日期 1979.12.26
申请人 RICOH COMPANY, LTD. 发明人 TAKAHASHI, AKIRA;HASHIMOTO, MASANORI
分类号 G03B7/093;G03B17/20;(IPC1-7):G03B9/62;G03B17/18 主分类号 G03B7/093
代理机构 代理人
主权项
地址