发明名称 Film position detecting device, film image display device and movie film recording device
摘要 In a first guide unit the plural number of electrodes are provided facing the edge of a movie film containing a plurality of perforations formed along the longitudinal direction of the movie film, in a second guide unit a band shaped conducting material is provided facing the electrodes having the movie film between, and each stop position with respect to window holes is detected based on the amount of change of each electrostatic capacity changing depending on the displacement rate from each stop position of a plurality of condensers which are formed making each electrode and conducting material as a pole plate respectively and making the thickness of the movie film as the distance of pole plates. Therefore, a film position detection device, a film image display device and a movie film recording device capable of further improving the movie film position detection accuracy can be realized with the simple construction.
申请公布号 US5710616(A) 申请公布日期 1998.01.20
申请号 US19960736604 申请日期 1996.10.25
申请人 SONY CORPORTION 发明人 SAITO, ETSURO;INATOME, KIYOSHI
分类号 G03B19/18;G03B21/32;(IPC1-7):G03B21/50 主分类号 G03B19/18
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