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17 terms
Photonics Dictionary
Clear All Filters x
bandpass x
bandpass
The range of frequencies that will pass through a filter or other device. Synonymous with passband.
passband
->
bandpass
The range of frequencies that will pass through a filter or other device. Synonymous with passband.
bandpass filter
A filter with a transmission that is high for a particular band of frequencies, but that falls to low values above and below this band.
edge filter
->
bandpass filter
A filter with a transmission that is high for a particular band of frequencies, but that falls to low values above and below this band.
narrow bandpass filter
->
interference filter
A filter that controls the spectral composition of transmitted energy partially by the effects of interference. Frequently, these filters are made up of thin layers of metals and dielectrics,...
BP
back projection; bandpass; boiling point; buff polish
color filter
->
optical filter
An optical filter is a device that selectively transmits or blocks specific wavelengths, or colors, of light. Optical filters are used to control the spectral content of light in various...
composite wave filter
A transducer composed of more than one high-pass, bandpass, low-pass or band-elimination filter.
crystal filter
A bandpass filter with piezoelectric crystal components for the passage or impedance of electrical signals of various frequencies.
Fabry-Perot etalon
A nonabsorbing, multireflecting device, similar in design to the Fabry-Perot interferometer, that serves as a multilayer, narrow-bandpass filter.
half-power point
1. The value on either the leading or the trailing edge of a laser pulse at which the power is one-half of its maximum value. 2. The wavelength at which a filter is transmitting one-half of its peak...
multilayer coating
A coating made up of many layers of material having alternating high and low refractive index. In this way, it is possible to produce coatings with a great variety of properties. These may be...
multispectral photography
The use of narrow bandpass filters and special photographic emulsions to discern features of a surface that would not be easily recognizable with regular black-and-white or color photographic methods.
narrowband pyrometer
An optical pyrometer that is equipped with a narrow bandpass filter to transmit a limited number of wavelengths to the sensing device.
notch filter
Also referred to as a band-stop or band rejection filter; a notch filter is a filter that is designed to screen out a very narrow band of radiation by transmitting most wavelengths with little...
optical filter
An optical filter is a device that selectively transmits or blocks specific wavelengths, or colors, of light. Optical filters are used to control the spectral content of light in various...
ultraviolet coatings
Ultraviolet (UV) coatings are specialized optical coatings designed to operate in the ultraviolet region of the electromagnetic spectrum, typically ranging from 10 nm to 400 nm. These coatings are...
Photonics Dictionary
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