Three-primary-color optical filter

The invention provides a three-primary-color optical filter. The three-primary-color optical filter is circular-shaped and comprises three sector-shaped single-fundamental-color optical filters, and the included angle of each sector is 120 degrees. The three-primary-color optical filter integrates the three single-fundamental-color optical filters into one rotatable disc, can manually or automatically rotate in actual application and satisfies rapid filtering separation of three primary colors. Compared to the prior art, the three-primary-color optical filter is simple in structure and convenient to operate and has a quite wide application value and application prospect. 本发明提供了种三基色滤光片，所述三基色滤光片为圆形，包括三个扇形的单基色滤光片，其中每个扇形的夹角为120。本发明的三基色滤光片，将三种单基色滤光片整合在个可转动的圆盘上，在实际应用中，能够手动或自动旋转，满足对三基色光的快速过滤分离。与现有技术相比，本发明的三基色滤光片结构简单、操作便利，具有非常广泛的使用价值和应用前景。