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9 terms
Photonics Dictionary
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spectral transmittance x
colorimeter
A colorimeter is a device used to measure and quantify the color characteristics of an object or a light source. It provides objective and standardized color information, typically expressed in terms...
electromodulation spectroscopy
A type of modulation spectroscopy that measures spectral reflectance or transmittance changes induced by applying a perturbing electric field. It can be performed in contactless modes with no special...
modulated grating hologram
A computer-generated, phase-and-amplitude, off-axis hologram made by a multi-exposure technique that uses three computer generated transmission masks. Each mask controls one fixed-phase component of...
reflectance estimate
The output of spectral channels written as an integral function of known solar irradiance, atmospheric transmittance and camera spectral responsivity, and the unknown spectral reflectance.
spectral centroid
Average wavelength usually determined for light-transmitting devices by taking a weighted average for each wavelength of the spectral energy distribution of incident light, transmittance of the...
spectral window
A wavelength region of relatively high transmittance, surrounded by regions of low transmittance.
spectrophotometric analysis
The detection and measurement of spectral reflectance, spectral transmittance or relative spectral emittance, relative to wavelength.
transmission window
->
spectral window
A wavelength region of relatively high transmittance, surrounded by regions of low transmittance.
tristimulus colorimeter
->
colorimeter
A colorimeter is a device used to measure and quantify the color characteristics of an object or a light source. It provides objective and standardized color information, typically expressed in terms...
Photonics Dictionary
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