340nm UV OD4 T>40% Optical Bandpass interference Filters

The UV Bandpass Filters is a filter whose two sides of the transmission band of the spectral characteristic curve are adjacent to the cut-off band. Bandpass filters are roughly classified into two types, broadband filters and narrow bandpass filters, according to their spectral characteristics. The bandpass filter has the following optical characteristics: the higher the cutoff OD value, the narrower the pass bandwidth（OD4 optical filters > OD6 optical filters ), and the higher the reflectivity of the cutoff film, the greater the absorption and scattering, so the bandpass filter The peak transmittance of the film will also become lower. In an all-dielectric bandpass filter, if the transmittances of the two layers are not equal, it will also affect the reduction of the passband transmittance of the filter.

Zoolied offers a variety of optical filters, such as PCR Fluorescence Analyzer Filters,longpass filters, Dichroic Filter, and Biochemical Analyzer Filters. ZOOLIED provides multiple anti-reflection coating options for the Ultraviolet (UV), visible, or IR filters and also provides uncoated optical glass filters based on K9 optical glass and UV fused silica.

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