Dynamic focus voltage error of projection display system was studied in this article. Parabola dynamic focus method, projection tube shape and optics processing were analyzed.
从投影显示系统典型的动态聚焦方法与投影管特殊的荧光屏结构以及光学处理等方面对投影显示系统的动态聚焦电压误差进行研究。
This paper analyses parabola precision of a cableway of single span, and discusses rise Angle while the load is in motion and puts new method of algorithm for rise Angle.
分析了单跨索道的抛物线算法，讨论了荷重运行时的升角，并提出了新的升角计算方法。
A kind of parabola interpolation method with numerical control periodic increment is introduced.
介绍了一种周期增量抛物线数控插补方法。
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