Simplified drive for shutter elements has piezo electric elements controlled by processor and coupled to shutter elements by drive lever

A simplified shutter drive has piezo electric elements (3) which are made to bend progressively by the applied control signal. One end of each piezo element is clamped into a support (2). The free end is connected to one side of a coupling yoke (5), to which a second element is also connected. The c...

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Bibliographische Detailangaben
Hauptverfasser:	WEIK, ROLAND, ROBRA, WOLFGANG
Format:	Patent
Sprache:	eng ; ger
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 OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS
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Beschreibung
Zusammenfassung:	A simplified shutter drive has piezo electric elements (3) which are made to bend progressively by the applied control signal. One end of each piezo element is clamped into a support (2). The free end is connected to one side of a coupling yoke (5), to which a second element is also connected. The coupling yoke is at the outer end of a drive lever (6) which connects to two shutter elements by a coupling yoke and two pivots. The piezo drive is controlled by a processor. Eine Verstellvorrichtung für eine Stellblende oder einen Verschluß, insbesondere in der digitalen Fachfotografie, ist mit Lamellen 10a, 10b, 10c, 10d versehen, die eine Blendenöffnung verändern und die über eine Antriebseinrichtung verstellbar sind. Die Antriebseinrichtung weist piezoelektrische Elemente 3 auf, die in Abhängigkeit von ihrer Aktivierung die Lamellen 10a, 10b, 10c, 10d verstellen.