| 释义 |
reflectance
re·flec·tance R0115700 (rĭ-flĕk′təns)n. 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.reflectance (rɪˈflɛktəns) or reflection factorn (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, absorptancere•flect•ance (rɪˈflɛk təns)
n. the ratio of the intensity of reflected radiation to that of the radiation incident on a surface. [1925–30] Thesaurus| Noun | 1. | reflectance - the fraction of radiant energy that is reflected from a surfacecoefficient of reflection, reflection factor, reflectivitycoefficient - a constant number that serves as a measure of some property or characteristic |
Translations
reflectance
reflectance (ri-flek -tăns) The ratio of the total radiant power reflected by a body to that incident on it.ReflectanceThe ratio of reflected light flux to incident light flux.reflectance[ri′flek·təns] (computer science) In optical character recognition, the relative brightness of the inked area that forms the printed or handwritten character; distinguished from background reflectance and brightness. (electricity) reflection factor (physics) reflectivity reflectanceThe ratio of the reflected flux to the flux incident on a surface.reflectance
re·flec·tance (rē-flek'tăns), A measure of reflected acoustic energy as a function of impedance, as in the middle ear.re·flec·tance (rĕ-flek'tăns) A measure of reflected acoustic energy as a function of immitance, as in middle ear impedance. reflectance (rē-flek′tăns) The fraction of total light reflected after it hits a surface, and the angle at which it is reflected. It is the inverse of absorbance. diffuse reflectanceThe reflectance of light from a rough or nonpolished surface in which the radiant energy tends to scatter. The angle of reflectance does not equal the angle of incidence. spectral reflectanceThe reflectance of light from a polished surface in which the angle of reflectance equals the angle of incidence. reflectance A measure of reflection equal to the ratio of reflected luminous flux Ε′ to the incident luminous flux Ε, i.e. ρ = Ε′/Ε. Syn. reflection factor. See Fresnel's formula.AcronymsSeeRreflectance
Related to reflectance: transmittance, radiance, Spectral reflectance, diffuse reflectanceSynonyms for reflectancenoun the fraction of radiant energy that is reflected from a surfaceSynonyms- coefficient of reflection
- reflection factor
- reflectivity
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