发明名称 MOTION PICTURE CAMERA DRIVE MECHANISM
摘要 A motion picture camera drive mechanism includes a single motor which is used for driving (separately or simultaneously) a film pull down mechanism which advances film past an exposure aperture and a mechanism for adjusting at least one lens element in a zoom lens system. When the camera drive mechanism is to be energized, provision is made for first energizing a circuit to an automatic exposure control system and then operating the film pull down mechanism, thereby effecting correct exposure of the first frame of film.
申请公布号 US3768896(A) 申请公布日期 1973.10.30
申请号 USD3768896 申请日期 1972.09.15
申请人 EASTMAN KODAK CO,US 发明人 JENKINS G,US;SEELY N,US;JUNGJOHANN V,US;MARVIN E,US
分类号 G03B17/14;G03B19/18;(IPC1-7):G03B1/00 主分类号 G03B17/14
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