Light reflectance value information

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

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

removal value, a measure of the ability of a treatment processes to remove pathogenic microorganisms Lunar Roving Vehicle Light reflectance value Light rail...

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

commonly stated that reflected-light meters are calibrated to an 18% reflectance, but the calibration has nothing to do with reflectance, as should be evident...

In photography, light value has been used to refer to a "light level" for either incident or reflected light, often on a base-2 logarithmic scale. The...

the metre as exactly the distance that light travels in vacuum in 1⁄299792458 of a second. By using the value of c, as well as an accurate measurement...

power-law functions (per Stevens' power law), they relate value to reflectance by raising the reflectance to the power of 0.352: V = 2.217 Y 0.352 − 1.324. {\displaystyle...

the bright source of light above the horizon comes the light reflectance value, which gradually increases as the source of light is lower above the horizon...

reflectance data is presented in units of %Ro, the measured percentage of reflected light from a sample which is immersed in oil (%Ro = % reflectance...

type of effect. BRDF (Bidirectional reflectance distribution function) is a simplified BSSRDF, assuming that light enters and leaves at the same point...

value: cyan, magenta, yellow, black or key LRV, but a consistent light reflectance value is not obtainable from pearlescent or metallic colours The visual...

Polynomial texture mapping (PTM), also known as Reflectance Transformation Imaging (RTI), is a technique of imaging and interactively displaying objects...

typically between 0.5 and 2 micrometres, with the exact value determined by the wavelength of light, the angle of incidence and the indices of refraction...

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

second). The fixed value of the speed of light in SI units results from the fact that the metre is now defined in terms of the speed of light. All forms of...

on the relationship of its reflectance to the effective average reflectance. For example, a dark object of 4% reflectance would be given a different exposure...

of exposure. Starting 1954, the so-called Exposure Value Scale (EVS), originally known as Light Value Scale (LVS), was adopted by Rollei, Hasselblad, Voigtländer...

photography and printing, it is typically defined as 18% reflectance in visible light. Light meters, cameras, and pictures are often calibrated using...

such that two successive values differ in only one bit (binary digit). For example, the representation of the decimal value "1" in binary would normally...

arithmetic speed K is the reflected-light meter calibration constant Applied to the right-hand side of the exposure equation, exposure value is E V = log 2 ⁡ L...

ratio of reflection of the diffuse term of incoming light (Lambertian reflectance), k a {\displaystyle k_{\text{a}}} , which is an ambient reflection constant...

reflectance of a thin film on a substrate represents the ratio of the intensity of light reflected from the sample to the intensity of incident light...

mean of the squares of the measuring values minus the square of the mean of the measuring values.) If a mode of light is in its ground state | 0 ⟩ {\displaystyle...