Radiance and spectral radiance are measures of the quantity of radiation that passes through or is emitted from a surface and falls within a given solid angle in a specified direction. They are used in radiometry to characterize diffuse emission and reflection of electromagnetic radiation. In astrophysics, radiance is also used to quantify emission of neutrinos and other particles. The SI unit of radiance is watts per steradian per square metre (W·sr−1·m−2), while that of spectral radiance is W·sr−1·m−2·Hz−1 or W·sr−1·m−3 depending on if the spectrum is a function of frequency or of wavelength.
Other articles related to "radiance":
... This function expresses the radiance factor (RADF) as a function the phase angle and the photometric latitude and the photometric longitude where is the Minnaert albedo, is an empirical parameter, is the ...
... Marth) Seisen no Keifu Thracia 776 Fūin no Tsurugi Fire Emblem The Sacred Stones Path of Radiance Radiant Dawn This is a character list for the Nintendo GameCube game Fire Emblem Path ... Like other Fire Emblem games, Path of Radiance was praised by reviewers for its character development some reviewers state a particular emotional attachment to individual characters in Path of ... Emblem Radiant Dawn, which is set three years after Path of Radiance ...
... The radiance ability word denotes abilities that target one permanent, but affect all permanents of the same type that share a color with the target ... Radiance appears in Ravnica City of Guilds and is associated with the Boros Legion ...
... See also Intensity (disambiguation) and Intensity (heat transfer) Radiance is often, confusingly, called intensity in other areas of study, especially heat transfer, astrophysics and ...
... Radiance is a radiometric measure of the amount of light in an area ... Radiance may also refer to Radiance (software), a software suite, including a renderer, for lighting simulation Malia Obama (U.S ... when used in cosmetic surgery (trade name) Radiance (play), a play by Louis Nowra Radiance (film), a 1998 Australian independent film Radiance / Chi ni Kaeru On the Earth, a song by Mami Kawada ...
Famous quotes containing the word radiance:
“The One remains, the many change and pass;
Heavens light forever shines, Earths shadows fly;
Life, like a dome of many-coloured glass,
Stains the white radiance of Eternity,
Until Death tramples it to fragments.”
—Percy Bysshe Shelley (17921822)
“The radiance was that of the full, setting, and blood-red moon, which now shone vividly through that once barely- discernible fissure,... extending from the roof of the building, in a zigzag direction, to the base. While I gazed, this fissure rapidly widened.”
—Edgar Allan Poe (18091849)
“Give me your poppies,
let their radiance spill
O love me.”
—Hilda Doolittle (18861961)