An electron gun for 76 cm/86 cm 120-degree 16: 9 Color TV tubes

被引：0

作者：

Wada, Yasufumi ^{[1
]}

机构：

[1] CRT Development Group, Display Devices Development Center, Matsushita Elec. Indust. Co., Ltd., 1-1, Saiwai-cho, Takatsuki, Osaka 569-1193, Japan

来源：

Kyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers | 2002年 / 56卷 / 08期

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摘要：

An electron gun has designed with an asymmetrical main lens. A set of parallel horizontal planes placed at the exit of the main lens generates positive astigmatism with horizontally converged and vertically diverged lens action. The effect of this results in a main lens diameter in the horizontal direction of 11.1 mm and in the vertical direction of 6.7 mm, 23% larger and 33% smaller than the existing main lens, respectively. The electron gun reduces spot distortion at the screen periphery with the available dynamic voltage, making it suitable for 76cm and 86cm 120-degree 16 : 9 29.1 mm neck diameter color TV tubes.

引用

页码：1265 / 1272