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Reflectance information


Spectral reflectance curves for aluminium (Al), silver (Ag), and gold (Au) metal mirrors at normal incidence.

The reflectance of the surface of a material is its effectiveness in reflecting radiant energy. It is the fraction of incident electromagnetic power that is reflected at the boundary. Reflectance is a component of the response of the electronic structure of the material to the electromagnetic field of light, and is in general a function of the frequency, or wavelength, of the light, its polarization, and the angle of incidence. The dependence of reflectance on the wavelength is called a reflectance spectrum or spectral reflectance curve.

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Reflectance

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dependence of reflectance on the wavelength is called a reflectance spectrum or spectral reflectance curve. The hemispherical reflectance of a surface...

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Lambertian reflectance

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Lambertian reflectance is the property that defines an ideal "matte" or diffusely reflecting surface. The apparent brightness of a Lambertian surface...

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Skin reflectance

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frequencies represent lower skin reflectance and thus darker pigmentation, whereas higher frequencies represent greater skin reflectance and therefore lighter pigmentation...

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Reflecting telescope

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A reflecting telescope (also called a reflector) is a telescope that uses a single or a combination of curved mirrors that reflect light and form an image...

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Reflecting pool

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A reflecting pool, also called a reflection pool, is a water feature found in gardens, parks and memorial sites. It usually consists of a shallow pool...

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Bidirectional reflectance distribution function

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surface reflectance anisotropy. For a given land area, the BRDF is established based on selected multiangular observations of surface reflectance. While...

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The Reflecting Skin

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The Reflecting Skin is a 1990 British-Canadian dramatic horror film written and directed by Philip Ridley and starring Jeremy Cooper, Viggo Mortensen and...

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Light reflectance value

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In architecture, light reflectance value (LRV), is a measure of visible and usable light that is reflected from a surface when illuminated by a light...

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Reflectativity

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Reflectativity is the second album by American jazz trumpeter Wadada Leo Smith and the debut with the ensemble New Dalta Ahkri, which was recorded live...

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Diffuse reflectance infrared Fourier transform spectroscopy

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of log inverse reflectance (log 1/R) versus wavenumber. Alternative plots of Kubelka-Munk units can be used, which relate reflectance to concentration...

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Albedo

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set of satellite reflectance measurements into estimates of directional-hemispherical reflectance and bi-hemispherical reflectance (e.g.,). These calculations...

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Diffuse reflectance spectroscopy

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diffuse reflectance is firmly entrenched, as in diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) and diffuse-reflectance ultraviolet–visible...

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Reflected ligament

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The reflected inguinal ligament (triangular fascia) is a layer of tendinous fibers of a triangular shape, formed by an expansion from the lacunar ligament...

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Reflectance paper

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Reflectance paper is a surface that contains a lattice of mirrored dimples. The paper is printed with color and the angle-dependent reflectance function...

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Photochemical Reflectance Index

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The Photochemical Reflectance Index (PRI) is a reflectance measurement developed by John Gamon during his tenure as a postdoctorate fellow supervised by...

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Vitrinite

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vitrinite reflectance (or VR) is a key method for identifying the maximum temperature history of sediments in sedimentary basins. The reflectance of vitrinite...

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Reflecting roadstud

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Reflecting roadstud may refer to: the cat's eye, a retroreflective safety device used in road marking Reflecting Roadstuds Ltd, the company founded by...

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Reflected appraisal

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Reflected appraisal is a term used in psychology to describe a person's perception of how others see and evaluate him or her. The reflected appraisal...

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Basking in reflected glory

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Basking in reflected glory (BIRGing) is a self-serving cognition whereby an individual associates themselves with known successful others such that the...

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Attenuated total reflectance

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binding. Surface plasmon resonance "FT-IR Spectroscopy—Attenuated Total Reflectance (ATR)" (PDF). Perkin Elmer Life and Analytical Sciences. 2005. Archived...

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Colorimetry

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irradiance of a light source. A spectrophotometer measures the spectral reflectance, transmittance, or relative irradiance of a color sample. A spectrocolorimeter...

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Bidirectional scattering distribution function

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usually split into the reflected and transmitted components, which are then treated separately as BRDF (bidirectional reflectance distribution function)...

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Light meter

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independent of the subject's reflectance, it is less likely to lead to incorrect exposures for subjects with unusual average reflectance. Taking an incident-light...

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Reflectance difference spectroscopy

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Reflectance difference spectroscopy (RDS) is a spectroscopic technique which measures the difference in reflectance of two beams of light that are shone...

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Reflecting instrument

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Reflecting instruments are those that use mirrors to enhance their ability to make measurements. In particular, the use of mirrors permits one to observe...

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Gray card

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flat reflectance spectrum. A typical example is the Kodak R-27 set, which contains one 8x10" card and one 4x5" card which have 18% reflectance across...

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