The emulations displayed high etendue efficiency and proved that the four designs have potential values in 0 . 5 - 0 . 7 inch slm project display . dividing colors and recombining colors system with dichroic filter system fulfilled the analysis of color balance by lighttool 对分色合色分系统和投影镜头分系统设计进行了初步研究,结合二向色滤光片分色合色系统,利用lighttools软件的照明模块实现了投影显示系统的颜色特性分析。