Cut-off filter as an important optical element, its characteristic is to let the light in a band range, the other band range of light through. The cut-off filter produced by our company has the characteristics of high transmittance, cut-off bandwidth and good film firmness. Applications: Bio-metrics, medical testing instrument, multi-band detector, digital image application, machine vision, etc. Product Parameter Switching wavelength Transmittance band Average transmittance Cut-off depth Notes 400±5 405-1200 ≥92 OD3-OD6@200-395 Other wavelengths can be customized on demand