HDTV用CPT的ΔS校正透镜的设计  

A design for ΔS correcting lens of using CPT for HDTV

作　　者：毕岗[1] 李志能[1] 

机构地区：[1]浙江大学信息与电子工程学系,浙江杭州310027

出　　处：《光学仪器》2001年第3期17-22,共6页Optical Instruments

摘　　要：在分析了ΔS透镜的作用以及设计原理基础上 ,提出了校正透镜设计计算方法 ,并给出了Δ S透镜曲面的计算表达式。初始透镜的曲面和试验管的Δσ着屏误差被精确地测量。实验验证表明其计算结果与测试结果相吻合 ,对于开发设计新型的高分辨力 CPT具有实用价值。Based on analyzing the function and design principle of lens,a novel design method was put forward,the expression to calculate the ΔS lens was deducted.The dimension of initial lenses and the Δσ landing error of the test CPT were measured by using some high precision instruments.A high measuring accuracy and speed arithmetic with a great deal of sample point was used for computing the ΔS correcting lens.The experiment shows that the result of calculation tallies with the one of test.It has some practical value for developing some new-style and high-resolution CPT.

关 键 词：彩色显像管 ΔS透镜 高清晰度电视 HDTV 

分 类 号：TN141.32[电子电信—物理电子学] TN949.17