A bandpass filter is an optical component that allows specific wavelengths of light to pass through while reflecting or attenuating light in other bands. It can be categorized into narrow bandpass filters and wide bandpass filters. The operating range of bandpass filters can span from ultraviolet 340nm, 365nm, visible light 405nm, 525nm, 650nm, near-infrared bands 850nm, 940nm, to mid- and far-infrared bands, etc., and the wavelength can be adjusted according to customer requirements.

  Product application areas: optical lenses and cameras in machine vision; laser rangefinders 635nm, 650nm, 780nm, 905nm, 1550nm, etc.; IVD fluorescence analyzers, endoscopic light source systems, automotive applications, etc.