宽锥角光束对分色合色膜色再现性能的影响  

Effect of Broad Conic Angle Incidence on Color Reproducibility of Dichroic Filters

作　　者：杨立功[1] 顾培夫[1] 

机构地区：[1]浙江大学现代光学仪器国家重点实验室,杭州310027

出　　处：《光学学报》2003年第6期724-728,共5页Acta Optica Sinica

基　　金：浙江省产业化基金资助课题

摘　　要：考虑了在CIEL a b 3D色空间中以色立体作为综合评价分色合色膜色再现性能的标准 ,分析了宽锥角光束入射时分色合色膜空间角度特性对图像色再现质量的影响 ,从优化色立体体积出发提出了用预补偿的方法来优化膜系设计 ,提高了宽锥角光束入射下膜系的色再现性能。A reproducible color gamut in CIE L*a*b* 3D color space is proposed as a performance index for evaluating the reproducibility of dichroic filters used in color separation/recombination system. Using this method, the effect of broad conic angle incidence on the color reproducibility from the special angle characteristic of dichroic filters is analyzed. And from the viewpoint of optimizing the volume of the color gamut, a precompensation method is presented to optimize the filters′ design parameter so that the color reproducibility of the films will be promoted remarkably when the incident beam is broad conic angle beam.

关 键 词：色度学 色再现性能 CIE LAB色空间 液晶投影显示 分色合色膜 宽锥角光束 

分 类 号：O432.3[机械工程—光学工程]