本文讨论内屏式彩色投影管光学系统设计方法。首先分析该管的优点,其次用光学自动优化设计程序计算了带施米特校正板的折反射系统的各种象差,接着确定该系统的最佳光学结构和银幕上的中心分辨率和边缘分辨率,最后指出用几块不同曲率的施米特校正板来弥补生产中因封接距不准确带来的投距误差。 This article discusses the inner screen color projection tube optical system design method. First, the advantages of this tube were analyzed. Secondly, various aberrations of the catadioptric system with Schmitt’s correction plate were calculated using the optical automatic optimization design program. Then, the optimal optical structure of the system and the central resolution and edge on the screen Finally, it is pointed out that using several Schmidt correction plates with different curvatures to make up for the pitch error caused by inaccurate sealing distance in production.