What Is the Passband?

The passband is the width of the band at half the maximum absorbance value.
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The passband is the width of the band at half the maximum absorbance value.
Name
Passband
Name
bandpass
Also known as
Band half width
Definition
Band width at half of the maximum absorbance value
bandpass
It is also called half bandwidth or effective bandwidth. No matter how high the quality of the optical system in the instrument, the light monochromated by the monochromator always has a certain wavelength (width) range, that is, a certain wavelength range centered on the specified wavelength (rated wavelength).