Lens mount assembly

The present invention relates to a lens mount assembly for use in photographic camera, video camera and other various optical instruments. Usually, electric drive units for focussing and zooming, respectively, are gear-coupled to such lens mount assembly and drive torque from these drive units often...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ATSUTA, TOSHIKATSU, TSUJIMURA, MASAO, HISAMOTO, NAOHIRO, MOCHIZUKI, EIICHI, ISHIKAWA, KAZUO, KUBODERA, TAKAYUKI, SHIROSHITA, HIROTAKA
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to a lens mount assembly for use in photographic camera, video camera and other various optical instruments. Usually, electric drive units for focussing and zooming, respectively, are gear-coupled to such lens mount assembly and drive torque from these drive units often causes deviation, deflection and eccentricity of the lens mount assembly, and additionally causes unreliable gear-coupling of the drive units and deteriorated image forming capability of the optical systems. The present invention provides a barrel supporting mechanism adapted to slidably support a front section of the lens mount assembly in order to overcome these problems. The present invention further provides the lens mount assembly with a simplified dust-proof mechanism utilizing a floating ring.