Radiant energy is the energy of electromagnetic waves. The quantity of radiant energy may be calculated by integrating radiant flux (or power) with respect to time and, like all forms of energy, its SI unit is the joule. The term is used particularly when radiation is emitted by a source into the surrounding environment. Radiant energy may be visible or invisible to the human eye.
Read more about Radiant Energy: Terminology Use and History, Analysis, Applications, SI Radiometry Units
Other articles related to "energy, radiant, radiant energy":
... luminous exposure Hv is the accumulated physical quantity of visible light energy (weighted by the luminosity function) applied to a surface during ... usually in lux) t is the exposure time (in seconds) The radiometric quantity radiant exposure He is sometimes used instead it is the product of image-plane irradiance Ee and time, the accumulated amount of ... v t e Quantity Symbol SI unit Symbol Dimension Notes Luminous energy Qv lumen second lm⋅s T⋅J units are sometimes called talbots Luminous flux Φv lumen (= cd⋅sr) lm J also called luminous power ...
... In photometry, luminous energy is the perceived energy of light ... Luminous energy is not the same as radiant energy, the corresponding objective physical quantity ... Light with a given amount of radiant energy will have more luminous energy if the wavelength is 555 nm than if the wavelength is longer or shorter ...
... The SI unit of radiant flux is the watt (W), which has dimensions of energy/time or, in SI units joules/second ... SI radiometry units v t e Quantity Unit Dimension Notes Radiant energy Qe joule J M⋅L2⋅T−2 energy Radiant flux Φe watt W M⋅L2⋅T−3 radiant energy per unit time, also called radiant power ... power Φeλ watt per metre W⋅m−1 M⋅L⋅T−3 radiant power per wavelength ...
... SI radiometry units v t e Quantity Symbol SI unit Symbol Dimension Notes Radiant energy Qe joule J M⋅L2⋅T−2 energy Radiant flux Φe watt W M⋅L2⋅T−3 radiant energy ... power Φeλ watt per metre W⋅m−1 M⋅L⋅T−3 radiant power per wavelength ... Radiant intensity Ie watt per steradian W⋅sr−1 M⋅L2⋅T−3 power per unit solid angle ...
... Luminous flux (photometric) and radiant flux (radiometric) Luminous intensity (photometric) and radiant intensity (radiometric) In photometric quantities every wavelength ... so a green source will have greater luminous flux than a red source with the same radiant flux would ... Radiant energy outside the visible spectrum does not contribute to photometric quantities at all, so for example a 1000 watt space heater may put out a great deal of radiant flux (1000 watts, in fact), but as a ...
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