For a filter or thin-film coating, the wavelength range over which transmission is allowed and possibly maximized. Transmission above or below the bandpass range is restricted by design through absorption and/or reflection.
Allowing a certain range or band of frequencies to pass through a system, while blocking or restricting others. In audio, this can be done electrically in a crossover, or mechanically as in a bandpass subwoofer box.
Specific range of frequencies allowed to pass through a device
This is the general wavelength regime used in the resource. It may be repeated: e.g. "Bandpass = Optical\n Bandpass = Infrared". Values used are: Radio, Microwave, Infrared, Optical, Ultraviolet, EUV, X-ray, Gamma-ray
A range of wavelengths within which a component operates.
Filter transmission curve convolved with the relative spectral detector response.
The frequency limits between half-power points of a signal or filter.
A range of wavelengths over which a component will meet specifications.
The characteristics of a device or system to allow certain frequencies to pass with less attenuation than other frequencies
The selectivity of a filter.
An adjective describing a system or device that operates only over a specified range of frequencies. In audio, there are bandpass filters, as in loudspeaker crossovers, and bandpass loudspeakers as in bandpass subwoofers. In all cases, frequencies outside of the pass-band range are severely attenuated.
A two-part filter that cuts both higher and lower frequencies around a center band. A bandpass enclosure cuts high frequencies by acoustic cancellation and low frequencies by natural physical limitations on bass response.
A two-part filter that cuts both high and low frequencies to leave a band in the middle. A bandpass enclosure cuts high frequencies by acoustic cancellation and low frequencies by natural physical limitations on bass response.
(BP): Transmits a band of color, the center of which is the center wavelength (CWL). The width of the band is indicated by the full width at half maximum transmission (FWHM), also known as the half bandwidth (HBW). It attenuates the light of wavelengths both longer and shorter that the passband.
A two-part filter that cuts both high and low frequencies allowing the band of frequencies between these two points to pass.
range of frequencies permitted to pass through a filter or receiver circuit.