Automatic cleaning system of lens front in television camera for monitor

Abstract

PURPOSE: To clean automatically the front of a lens periodically with a simple mechanism by surrounding a television camera for monitor with a casing provided with an aperture part in the lens side and supplying continuously a protective transmission film to the aperture part. CONSTITUTION: A television camera 10 is stored and arranged in a casing 16 where an aperture part 14 is formed in the side face facing the camera lens. A continuous protective transmission film 18 superior in transparency is arranged in the aperture part 14, and a supporting transmission plate 20 is arranged on the inside of this protective transmission film 18. The protective transmission film 18 is wound around a supply reel 22 provided inside and on the aperture part 14 and is wound up around a take-up reel 24 provided inside and under the aperture part 14, and the take-up reel 24 is rotated interruptedly and periodically by a driving mechanism 26, and the protective transmission film 18 is fed in accordance with the area of the aperture part 14. COPYRIGHT: (C)1986,JPO&Japio

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Patent Citations (1)

    Publication numberPublication dateAssigneeTitle
    JP-S5029486-UApril 03, 1975

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