OD 4.0 50nm镀加硬膜的带通滤光片非常适合在广泛的成像应用中消除不需要的背景噪声并增强信噪比，其中包括机器视觉检测、荧光显微镜和各种生物技术仪器。有别于需要使用多个基片和镀膜制造的传统滤光片，这些镀加硬膜的滤光片仅采用单个基片制造。与传统镀膜滤光片相比，镀加硬膜并采用单基片制造的滤光片能够提供更深的截止、更高的透射率以及更陡的斜率。
All mounted TECHSPEC® Optical Filters have an arrow on the side of the mount that points to the filter-coated surface for quick reference. Filter oriented such that arrow points to filter coated surface S1. Anti-reflective (AR) coating is applied to S2.
