302 nm Narrow Bandpass Optical Filter

The 302 nm ultraviolet narrow bandpass optical filter is a high-performance bandpass filter designed for spectral selection and precision detection in the ultraviolet region. It primarily transmits UV light from 288.5 nm to 314.5 nm with an average transmittance Tavg > 70%, while providing high optical density blocking on both sides of the passband, including UV and visible wavelengths, effectively reducing interference from background light and stray light in detection systems. The filter has a FWHM of 28.6 nm and a guaranteed minimum bandwidth of 26 nm, enabling selective extraction of UV signals around 302 nm. Featuring a near-normal incidence design with a standard angle of incidence of 0°± 5°, it is suitable for UV fluorescence detection, spectroscopy, UV imaging, photochemical research, and precision optical inspection.