多波段光源专用硬膜滤光片波段覆盖中波紫外到近红外光谱区，多达近三十个波段的矩形化带通滤光片和近二十个锐截止型干涉滤光片，背景截止深达10-6Multi-bandfilterlightspecialsubduralProductsbandcoveragefrommid-UVBtonear-infraredspectralregion,nearly30bandsofrectangularband-passfilterandnearly20sharpcutoffinterferencefilter,deadlinedeepbackgroundupto10-6.