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The ratio of the total amount of radiation, as of light, reflected by a surface to the total amount of radiation incident on the surface.


(rɪˈflɛktəns) or

reflection factor

(Units) a measure of the ability of a surface to reflect light or other electromagnetic radiation, equal to the ratio of the reflected flux to the incident flux. Symbol: ρ Compare transmittance, absorptance


(rɪˈflɛk təns)

the ratio of the intensity of reflected radiation to that of the radiation incident on a surface.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.reflectance - the fraction of radiant energy that is reflected from a surface
coefficient - a constant number that serves as a measure of some property or characteristic
References in periodicals archive ?
International Diffuse Reflectance Conference, 2006, Chambersburg, PA.
Baldock JA, Hawke B, Sanderman J, Macdonald LM (2013) Predicting contents of carbon and its component fractions in Australian soils from diffuse reflectance mid-infrared spectra.
Several studies have shown that measurements of diffuse reflectance with a UV-visible spectrophotometer is a standard technique in the estimation of the absorption properties of material and calculation of the band gap energy from the measurement of the diffuse reflectance [14,15].
The Ocean Optics Diffuse Reflectance Probe (DR-Probe) measures 45[degrees] diffuse reflectance, enhancing UV-Vis and NIR spectroscopy results.
The Ocean Optics Diffuse Reflectance Probe (DR-Probe] measures 45[degrees] diffuse reflectance, enhancing UV-Vis and NIR spectroscopy results.
Diffuse reflectance spectroscopy is a very useful device for diagnosis and treatment purposes under in-vivo conditions.
The spectra were recorded in diffuse reflectance mode over the wavelength range of 350-2500 nm at 1-nm data spacing interval.
These products provide more than 90% diffuse reflectance across the visible wavelength spectrum, in thicknesses of 125 or more, which is desired by many LED lighting applications.
The scientists measured water contact angles, specular and diffuse reflectance, and the surface temperature of the coupons before and after they underwent treatment.
NIRS uses the diffuse reflectance and absorption of near-infrared light to obtain information about the molecular composition of a sample.
Diffuse Reflectance (DR) is the result of single and multiple backscattering of the white excitation light a property that depends on tissue morphology such as nuclear size, distribution, epithelial thickness, and collagen content, and the amount of oxy and deoxy - haemoglobin presence in the exposed tissue, all of which can vary during tissue transformation to malignant state.

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