| 摘要 |
PURPOSE: A convergence divide of a color CRT is provided to compensate a heating drift without decreasing convergence characteristics by applying a preferred construction for easily performing an adjustment. CONSTITUTION: The convergence divide of a color CRT includes the first and the second heat pulse magnetic substance(P4a,P4f) which are sequentially arranged in front and afterward of a holder, respectively. The first heat pulse magnetic substance(P4a) is alnico material which temperature variation coefficient is 0.012 %/°C, while the second heat pulse magnetic substance(P4f) is a conventional ferrite material which temperature variation coefficient is 0.2 %/°C. Also, the magnetic poles of the first and the second heat pulse magnetic substance(P4a,P4f) are contrary arranged each other to inversely perform a focus and a diffusion operation.
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