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    • 42. 发明授权
    • Apparatus for making electroluminescent screens for color cathode ray
tubes
    • 用于制造彩色阴极射线管的电致发光屏的装置
    • US3971043A
    • 1976-07-20
    • US574637
    • 1975-05-05
    • Takeshi SuzukiShigeo TakenakaHiroshi TanakaMasanori Akiyama
    • Takeshi SuzukiShigeo TakenakaHiroshi TanakaMasanori Akiyama
    • H01J9/227G03B41/00
    • H01J9/2271
    • An electroluminescent screen for a color cathode ray tube of the shadow-mask type having a plurality of light absorbing stripes and elemental light emitting electroluminescent stripes each separated by one of the light absorbing stripes is produced by locating a movable shield plate between a light source and shadow mask, the shield having an opening for limiting the path of light between the light source and the shadow mask. The shield plate is moved so as to move the irradiated area on the shadow mask along the length of rows of apertures of the mask. The light source is gradually inclined synchronously with the moving of the irradiated area on the shadow mask to be kept always substantially parallel to the rows of apertures in the irradiated area. The light source has a substantial longitudinal length and narrow width and moves transversely with respect to that length with predetermined amplitude and frequency during movement of the irradiated area across the mask. The light may be so formed that the light emitted from both ends is more intense than that emitted from the center portion thereof.
    • 一种荫罩型彩色阴极射线管的电致发光屏是通过将可移动屏蔽板定位在光源与光源之间而制成的,具有多个吸光条和元素发光电致发光条, 该荫罩具有用于限制光源和荫罩之间的光路的开口。 移动屏蔽板以使荫罩上的照射区域沿荫罩的孔的长度移动。 光源与荫罩上的照射区域的移动同步地逐渐倾斜,以保持总是基本上平行于照射区域中的一排孔。 光源具有大的纵向长度和窄的宽度,并且在照射区域穿过掩模的运动期间,以相对于该长度具有预定的幅度和频率横向移动。 光可以这样形成,使得从两端发射的光比从其中心部分发射的光更强。