Narrow Band Pass Filter

Narrow Band Pass Filter

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He Rui optics 'Narrowband filters can selectively pass a specific wavelength of light. The narrow-band filter is subdivided from the band-pass filter, the definition is the same as that of the band-pass filter, the filter allows the optical signal to pass in a specific wavelength band, and deviates from the two wavelengths outside this band. The side light signal is blocked, and the passband of the narrowband filter is relatively narrow, generally less than 5% of the central wavelength value. The main technical parameters of narrow-band filters include center wavelength, half bandwidth, cut-off range and cut-off depth.

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