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    • 4. 发明授权
    • Lens barrel structure for waterproof camera
    • 透镜桶结构用于防水相机
    • US5056903A
    • 1991-10-15
    • US330134
    • 1989-03-29
    • Ikushi NakamuraShigeru Nagata
    • Ikushi NakamuraShigeru Nagata
    • G02B7/02G03B17/08
    • G03B17/08G02B7/021G03B2217/265
    • A lens barrel for a waterproof or dustproof camera which can assure maintenance of a reliable liquid-tight or airtight condition between a movable lens barrel member and a fixed lens barrel member with a structure of a comparatively small size. The lens barrel comprises a fixed lens barrel member provided on a camera body, a movable lens barrel member mounted for movement on the fixed member between a position advanced outwardly from the camera body and another position retracted in the camera body, and a bellows member secured at an end thereof to an inner periphery of a rear portion of the movable member and at the other thereof to an inner periphery of a rear portion of the fixed member. The bellows member is folded back at an intermediate portion thereof between the movable member and the fixed member in such a manner as to surround a rear end of the movable member, and the folded back portion moves as the movable member is moved between the retracted position and the advanced position.
    • 一种用于防水或防尘照相机的镜筒,其可以确保在可移动镜筒和具有相对较小尺寸的结构的固定镜筒之间保持可靠的液密或气密状态。 透镜镜筒包括设置在照相机主体上的固定透镜镜筒构件,可移动透镜镜筒构件,安装用于在从照相机主体向外推出的位置和在照相机主体中缩回的另一位置之间在固定构件上移动;以及波纹构件固定 在其一端到可动件的后部的内周,另一端连接到固定件的后部的内周。 波纹管构件在可动构件和固定构件之间的中间部分处以可围绕可动构件的后端的方式折回,并且当可移动构件在缩回位置 和先进的位置。