All Topics  
Radiant flux

 

 
   Email Print
   Bookmark   Link
 

 

Radiant flux
 
 
  Topics Radiant flux Topic Home

In radiometry
Radiometry

In optics, radiometry is the field that studies the measurement of electromagnetic radiation, including visible light. Note that light is also measured using the techniques of photometry_, which deal with brightness as perceived by the human eye, rather than absolute power....
, radiant flux or radiant power is the measure of the total power
Power (physics)

In physics, power is the rate at which mechanical work is performed or energy is transmitted, or the amount of energy required or expended for a given unit of time....
 of electromagnetic radiation
Electromagnetic radiation

Electromagnetic radiation takes the form of wave propagation waves in a vacuum or in matter. EM radiation has an electric field and magnetic field component which oscillate in phase perpendicular to each other and to the direction of energy Wave propagation....
 (including infrared
Infrared

Infrared radiation is electromagnetic radiation whose wavelength is longer than that of visible light , but shorter than that of terahertz radiation and microwaves ....
, ultraviolet
Ultraviolet

Ultraviolet light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than x-rays, in the range 400 nanometer to 10 nm, and energies from 3 Electron volt to 124 eV....
, and visible light). The power may be the total emitted from a source, or the total landing on a particular surface.








Discussion
Ask a question about 'Radiant flux'
Start a new discussion about 'Radiant flux'
Answer questions from other users
Full Discussion Forum



Encyclopedia


In radiometry
Radiometry

In optics, radiometry is the field that studies the measurement of electromagnetic radiation, including visible light. Note that light is also measured using the techniques of photometry_, which deal with brightness as perceived by the human eye, rather than absolute power....
, radiant flux or radiant power is the measure of the total power
Power (physics)

In physics, power is the rate at which mechanical work is performed or energy is transmitted, or the amount of energy required or expended for a given unit of time....
 of electromagnetic radiation
Electromagnetic radiation

Electromagnetic radiation takes the form of wave propagation waves in a vacuum or in matter. EM radiation has an electric field and magnetic field component which oscillate in phase perpendicular to each other and to the direction of energy Wave propagation....
 (including infrared
Infrared

Infrared radiation is electromagnetic radiation whose wavelength is longer than that of visible light , but shorter than that of terahertz radiation and microwaves ....
, ultraviolet
Ultraviolet

Ultraviolet light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than x-rays, in the range 400 nanometer to 10 nm, and energies from 3 Electron volt to 124 eV....
, and visible light). The power may be the total emitted from a source, or the total landing on a particular surface.

Units


The SI
Si

Si, si, or SI may refer to :...
 unit of radiant flux is the watt
WATT

WATT is a radio station broadcasting a News radio-Talk radio-Sports radio format. Licensed to Cadillac, Michigan, it first began broadcasting in 1945....
 (W), which has dimensions of energy/time or, in SI units joules/second.

See also

  • Luminous flux
    Luminous flux

    In photometry , luminous flux or luminous power is the measure of the perceived power of light. It differs from radiant flux, the measure of the total power of light emitted, in that luminous flux is adjusted to reflect the varying sensitivity of the human eye to different wavelengths of light....
  • Power (physics)
    Power (physics)

    In physics, power is the rate at which mechanical work is performed or energy is transmitted, or the amount of energy required or expended for a given unit of time....
  • Radiosity (heat transfer)
    Radiosity (heat transfer)

    In the fields of optics and heat transfer, radiosity is the total emitted and reflected radiation leaving a surface.The diffuse radiosity is the integral of the hemispherical spectral radiosity over the spectrum:...