DETECTOR FOR PERFORATION

PURPOSE:To control the running speed of a film by a detecting signal for perforation by constituting a device which detects perforation assuredly with no contact irrespective of the density of a silm base.

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Bibliographische Detailangaben
Hauptverfasser:	KUMAGAI MITSURU, SASAOKA TAKESHI
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY DETECTING MASSES OR OBJECTS ELECTROGRAPHY GEOPHYSICS GRAVITATIONAL MEASUREMENTS HOLOGRAPHY INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK PHOTOGRAPHY PHYSICS TESTING
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Beschreibung
Zusammenfassung:	PURPOSE:To control the running speed of a film by a detecting signal for perforation by constituting a device which detects perforation assuredly with no contact irrespective of the density of a silm base.