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.
The purpose of this paper is to discuss the methods of opticssystem design of color Schmidt projection tube.
本文讨论内屏式彩色投影管光学系统设计方法。
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The projectionoptics is designed for a constant field angle and entrance pupil. Thus image always fills entrance aperture and view field of the test optical system.