Infrared cut-off filter is a cut-off filter whose switching wavelength is located in the infrared region, allowing the light on one side of the switching wavelength to pass through and the light on the other side to cut off. Applications: digital camera, mobile phone, computer camera, monitor, video phone, etc. Product Parameter Switching wavelength (um) Transmittance band (um) Cut-off band (um) Average transmittance (%) Block depth Notes 2.05±1% 1.5-2 2.1-3.0 >90 OD3 Other wavelengths can be customized on demand