FILM CARTRIDGE AND FILM UNIT WITH LENS

PROBLEM TO BE SOLVED: To prevent the reuse of a film unit with a lens. SOLUTION: A groove 36 is formed on the inner peripheral face except a key groove 34a of an engaging hole 34 provided in the end part of a spool 31 and a projected line 40 engaged with the groove 36 is formed on the outer peripher...

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Bibliographische Detailangaben
1. Verfasser:	NEGISHI KENJI
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 AUXILIARY PROCESSES IN PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES PHOTOGRAPHY PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES PHYSICS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To prevent the reuse of a film unit with a lens. SOLUTION: A groove 36 is formed on the inner peripheral face except a key groove 34a of an engaging hole 34 provided in the end part of a spool 31 and a projected line 40 engaged with the groove 36 is formed on the outer peripheral face except a key 38a of the engaging shaft 38 of a winding knob 10. A film cartridge to be sold generally has no groove in the engaging hole, so that the film unit with the lens can not be reused.