reflectance


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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 reflectance

The 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 reflectance

The 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.
References in periodicals archive ?
Spectral reflectance data for non aged and aged filter papers soaked in surface active agent (SAA) solution are presented at Fig.
The mean reflectance curves for all treatments during the 2013 and 2014 harvests exhibited a typical pattern described by JENSEN (2009) as the "spectral signature of vegetation" and reflected structural changes that took place in the canopy during the growth and development cycle (Figure 1C and 1D).
Overall, all of the samples performed well for solar reflectance properties as indicated by the TSR values exceeding 80% on the aluminum and white substrates.
The reflectance and absorbance of a leaf differ because pigments in a leaf prefer to use sunlight at a specific wavelength to synthesize organic nutrients via photosynthesis (Ding et al.
Where, Refi' is the normalized reflectance for bandi, Refi is the original reflectance of the band, n is the total number of bands.
The diffused reflectance of the thin film system was measured with a Lambda 750 UV/Vis/NIR spectrophotometer (Perkin-Elmer Corporation).
By comparing the waveform trends, the reflectance spectrum of the RIFA nest soil was found to be similar to that of the ordinary soil, although their reflectance values were different in some wave ranges.
On July 19, Reflectance received Food and Drug Administration clearance to sell our Mobile CareGuide 3100, a device that lets medical personnel take blood oxygen and pH readings without a blood sample to identify patients who are about to go into shock on a timely basis.
The matrix of each single-period incorporating the refractive indices and the thicknesses as well as the ray angles of the two constituent layers plays a dominant role in the calculation of the reflectance spectrum for a Bragg reflector.
Thermx PCT provides superior colour and reflectance stability under heat and light compared to commonly used high temperature polyamides.
The amount of light that returns for each pulse gives the reflectance at that point on the surface.