FOCAL PLANE SHUTTER BLADE ARRANGEMENT AND SUPPORT

A focal plane shutter arrangement in which a first group of shutter-opening blades and a second group of shutter-closing blades are actuated by respective pairs of operating levers. The shutter blades are principally supported for parallel movement by means other than the operating levers. Each grou...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NAKAGAWA T,JA, ONDA E,JA, KOYAMA M,JA, KITAI K,JA, NAGAOKA S,JA
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 ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHY PHYSICS
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Beschreibung
Zusammenfassung:	A focal plane shutter arrangement in which a first group of shutter-opening blades and a second group of shutter-closing blades are actuated by respective pairs of operating levers. The shutter blades are principally supported for parallel movement by means other than the operating levers. Each group of shutter blades has a rectangular slit-forming shutter blade having a straight edge. This blade is moved in a parallel manner in which it is constantly maintained with its straight edge normal to a plane passing transversely of the shutter aperture. The shutter blades are guided in their movement by either arcuate or rectilinear slots and are actuated by a rod connected to the lever system. The shutter blades in each group are supported in independent support except for one which is supported from the slit-forming shutter blade of its respective group. The focal plane shutters is accordingly made compact and the inertia of the individual shutter blade groups is reduced or minimized.