Cathode-ray tube with fixing springs for color selection electrode

摘要

A cathode-ray tube having a color-selecting electrode which is secured to a fluorescent glass panel by fitting fixing springs provided on the color-selecting electrode to fixing pins, respectively, which are provided on the fluorescent glass panel. The fixing springs have a shape factor K in the range of from 10 mm3/kg to 100 mm3/kg, the shape factor K being given by K=(thickness)x(breadth)2x(height)/(length)/(weight of color-selecting electrode) Thus, it is possible to suppress the shift of the relative position of the fluorescent glass panel and the color-selecting electrode and minimize the incidence of product failures due to misregistration of colors.