254.7nm UV Interference Bandpass Filter 12.5mmdia x 10nmBW
Design and fabrication of UV band-pass filters based on SiO2/Si3N4 dielectric distributed bragg reflectors - ScienceDirect
QuantaModule Open Source 100-Watt Far UV Excimer Module DC 24V Far-UVC Light Kit with 222nm Bandpass Flitter and Housing ⋆ QuantaDose Far-UV/UVC Light and Detection