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CRT管聚焦性能
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CRT管聚焦性能
Source:
2017/6/19 14:31:08 View:
CRT投影机把输入的源信号分解到R(红)、G(绿)、B(蓝)三个CRT管的荧光屏上,在高压作用下发光,经过信号放大和会聚,在大屏幕上显示出彩色图像。CRT管的聚焦分为静电聚焦、磁聚焦和电磁复合聚焦三种,电磁复合聚焦应用较为普遍,它的优点是聚焦性能好、聚焦精度高,可以进行分区聚焦和边角聚焦,让投影画面清晰。
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