To improve the ability of dichroic beam combiner, the paper based on the fact of combining the condition and technique of now designs and produces the filter of satisfying require, which is ended in 600-640 wave band.
在彩色电视、电影、印刷等彩色分光系统中要使用二向色镜，它是一种使红光反射、绿光透射的截止滤光片。