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    • 9. 发明授权
    • Lighting system for an endoscope
    • 内窥镜照明系统
    • US06817977B2
    • 2004-11-16
    • US10355048
    • 2003-01-31
    • Shunichi Ito
    • Shunichi Ito
    • A61B106
    • A61B1/0669
    • A lighting system for an endoscope includes a lamp positioned so that an optical axis thereof is oriented horizontally; a light guide having an incident end upon which the illuminating light from the lamp is incident; a diaphragm plate rotated about a pivot so as to advance into and retract from an optical path of the illuminating light, the pivot extending parallel to the optical axis of the lamp and positioned above or below the optical path. The diaphragm plate includes a notch which is formed at one end of the diaphragm plate, the notch being positioned along an arc which is centered about the pivot and which intersects a center of the light guide when the diaphragm plate rotates about the pivot; and a large number of minute perforations formed along and below the arc.
    • 一种用于内窥镜的照明系统,包括:灯的定位方式,使其光轴水平取向; 具有入射端的导光体,来自灯的照明光入射到入射端; 围绕枢轴旋转的隔膜板,以便前进到照明光的光路并从光学路径缩回,该枢轴平行于灯的光轴延伸并且位于光路的上方或下方。 隔膜板包括形成在隔膜板的一端处的凹口,凹口沿着围绕枢轴定心的弧定位,当隔膜板围绕枢轴转动时,该凹槽与导光体的中心相交; 以及沿弧线形成的大量细小的穿孔。