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US5663610A Cathode ray tube that minimizes mislanding of electron beams due to thermal expansion and vibration 失效
阴极射线管,由于热膨胀和振动而最大限度地减少了电子束的失地

Cathode ray tube that minimizes mislanding of electron beams due to
thermal expansion and vibration
摘要:
When an outer surface of an effective portion 20 of a panel 20 is substantially spherical, a diagonal axis of the effective portion, a long axial effective diameter, land a short axial effective diameter are Sd, Sh, and Sv, the panel is shaped to satisfy the relationship, Dp/Sd (Ta-Tmin) or .vertline.T max-Ta.vertline.>.vertline.T min-Ta.vertline..
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