| 摘要 |
A component-in-process for use in the manufacture of a color cathode ray tube comprises a shadow mask having a pattern of minute apertures for color selection the mask according to the invention has disposed on at least one side thereof a removable film effective to prevent particle occlusion of the apertures. The film according to the invention has an extremely small, substantially uniform thickness dimension, a low index of refraction, and is of such high transparency as to exhibit a negligible optical effect during photoscreening operations. An associated manufacturing method for a cathode ray tube is also disclosed.
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