the fraction or percent of a particular frequency or wavelength of electromagnetic radiation that is reflected from the surface of a substance without being absorbed or transmitted
(sol) The ratio of RADIATION reflected from a surface to that incident on the surface [See also: REFLECTIVITY (2)] F - facteur de reflexion S - reflectancia
Reflectance is the ratio of the total radiant flux, as of light, reflected by a surface to the total striking the surface
The ratio of the light reflected from a surface to the light falling on it, expressed in percentage
Reflectance is the fraction of the total radiant flux incident upon a surface that is reflected and that varies according to the wavelength distribution of the incident radiation
A spectrum consists of a set of reflectance or transmittance values for the wavelengths scanned during a measurement The term "reflectance" is used if the amount of light is measured which is diffusely reflected by the sample This is mainly the case with solid samples
{i} ratio of energy sent back from a surface to the total energy striking the surface (Physics)
The ratio of reflected power to incident power, generally expressed in dB or percent (188)
Also called reflectivity, this is the fraction of the light incident on a surface that is reflected Reflectance varies according to the wavelength distribution of the light
The ratio of the amount of light of a specified wavelength or series of wavelengths reflected from a test surface to the amount of light reflected from a barium oxide or magnesium oxide standard
ratio of the radiant energy reflected by a body to the energy incident on it (approximately the inverse of emissivity)
The ratio of the reflected flux to the incident flux, or the ratio of reflected light to light falling on the object
Reflectance is the ratio of power reflected to the incident power at a connector junction or other component junction, usually measured in decibels or dB Reflectance is stated as a negative value, e g , -30 dB A connector that has a better reflectance performance would be a -40 dB connector or a value less than -30 dB The term return loss, back reflection and reflectivity are also used synonymously in the industry to describe device reflections, but stated as positive values
The fraction of the light incident on a surface that is reflected and varies according to the wavelength distribution of the light
Ratio of the intensity of reflected radiation to that of the incident radiation on a surface
Radar term referring to the ability of a radar target to return energy; used to derive echo intensity, and to estimate precipitation intensity and rainfall rates See dBZ, VIP
A term to indicate the percentage of reflected light from a painted surface Considered a function of color rather than specular gloss Reflectance percentages usually range from 80% to 90% for white colors to 5% to 15% for dark colors Reflectivity standards vary for each industry and specific application
{i} quality of producing a reflection; quality of being contemplative, state of being pensive; ratio of energy reflected by a surface to the amount of energy striking the surface, reflectance (Physics)
The measure of the efficiency of a radar target in intercepting and returning Electro Magnetic Energy Reflectivity depends upon the size, shape, aspect and dielectric properties at the surface of the target
The reflectance at the surface of a material so thick that the reflectance does not change with increasing thickness, i e , the intrinsic reflectance of the surface, irrespective of other parameters such as the reflectance of the rear surface Note: The term "reflectivity" is no longer in common use See reflectance
The ratio of the energy carried by a wave that is reflected from a surface to the energy of a wave incident on the surface (Source: Carbon Dioxide Information Analysis Center, 1990)
1 A measure of the fraction of radiation reflected by a given surface; defined as the ratio of the radiant energy reflected to the total that is incident upon that surface Compare reflection coefficient See radar reflectivity
The ability of a surface to reflect light and other electromagnetic radiation Aluminum has high reflectivity: 80% or more for visible light, and 90% or more for infrared radiation
(sol) (meas) [1] The ability to reflect SOLAR RADIATION, which is possessed to some degree by all materials It is called the ALBEDO in atmospheric references [2] The ratio of RADIANT ENERGY reflected by a body to that falling upon it F - pouvoir reflecteur S - reflectividad
A measure of the process by which a surface can turn back a portion of incident radiation into the medium through which the radiation approached It also refers to the degree by which precipitation is able to reflect a radar beam
A measure of the process by which a surface can turn back a portion of incident radiation back into the medium through which the radiation approached Reflectivity of a given surface is know as albedo It is also the degree by which a precipitation type is able to reflect a radar beam
In the Attributes list, there is Reflectivity to Light, which determines how shiny the object is in general And there is also Environmental Reflectivity, which affects how well a Reflection Map texture works on the object
Property of illuminated objects to reradiate a portion of the incident energy Reflectivity, in general, is larger in the specular direction for smaller surface roughness For side looking radars, backscatter is the observable portion of the energy reflected Backscatter, in general, is increased by greater surface roughness In general, reflectivity is increased for higher conductivity of the scattering surface The relative strength of radar reflectivity is tabulated by sigma, for discrete objects, and by sigma nought for natural terrain surfaces