|
|
|
|
|
|
|
|
|
Reflectance reflectivity
| Glossary Of Laser Terminology |
The ratio of the reflected radiant power to the incident radiant power.
|
|
Reflectance, английский
- The percentage of light that is reflected from an object. spectrophotometers measure an object's reflectance at various intervals along the visible spectrum to determine the object color's spectral curve. see spectral curve, spectral data.
- The ratio of light returned from a surface expressed as a percentage.
- Отражательная способность
- The percentage of light reflected from a component, such as a connector, splice, splitter, or wdm
- The ratio of the reflected flux to the flux incident on a surface. reflectance coefficient, reflectance factor
- Коэффициент отражения, отражательная способность
- Ratio of reflected wave energy to incident wave energy. also known as reflectivity.
Reflectance (or reflection factor), английский
Отражательная способность (или коэффициент отражения). отношение потока лучистой энергии (или света), отражаемой данной поверхностью, к потоку лучистой энергии (или света), падающему на эту поверхность.
Reflectance pattern, английский
A reflectance pattern is an observation whose attributes have been normalized so that their values add up to one. see also: ann, normalization.
Reflectance. light-reflective glass, английский
Reflectivity, английский
- A measure of the fraction of incident radiation falling on a surface that is turned back from it by reflection. reflectivity also refers to the degree by which precipitation is able to reflect a radar beam.
- Отражательная способность
- Коэффициент отражения, отражательная способность
- Ability of a surface to reflect electromagnetic radiation, expressed as ratio r of the intensity of the total energy reflected from a surface to total radiation on that surface. for a perfect mirror, reflectivity r approaches 1.0; for a blackbody, the reflectivity is zero.
- Ability of a surface to reflect radiation, expressed as the ratio ? of the intensity of the total energy reflected from a surface to total radiation on that surface. for a perfect mirror, reflectivity r approaches 1.0; for a blackbody the reflectivity is 0. compare reflectance; reflection.
|
Wall plug efficiency, английский
The ratio of the transmitter output power, be it microwave or optical, to the (electrical) power consumed by the transmitter.
Solid angle, английский
The ratio of the area on the surface of a sphere to the square of the radius of that sphere. it is expressed in steradians (sr).
|
|
|
|
|
|
|
