| 摘要 |
A funnel for a cathode ray tube has a relationship 0<alpha(z)<d in an arbitrary cross section P(z) parallel with a plane including an open end portion, where alpha(z) is an angle (°) defined between a line and a major axis (LA) of the funnel, the line being connecting an outermost part D(z) on at least one of an outer surface and an inner surface of the body portion and a center axis (C) of the funnel, and d is an angle (°) defined between a diagonal axis (DA) of the funnel and the major axis (LA).
|
