BP365 UV Bandpass dichroic filters can be used with all UV LED, UV fluorescent and other UV-producing lamp-based lighting. BP365 filter material is designed to block the visible and pass UV light, including 395nm and all other popular UV LED wavelengths. It is also useful for near-UV fluorescence imaging, blocking visible light and light from UVC LED excitation sources, allowing early removal of biofilms (for instance, in disinfection applications or biofouling of ship hulls) through tryptophan fluorescence detection. The substrate material is low-expansion Borofloat, making this filter particularly heat resistant.