incandescence


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

Incandescence

The emission of visible radiation by a hot body. A theoretically perfect radiator, called a blackbody, will emit radiant energy according to Planck's radiation law at any temperature. Prediction of the visual brightness requires additional consideration of the sensitivity of the eye, and the radiation will be visible only for temperatures of the blackbody which are above some minimum. The relation between brightness and temperature is plotted in the illustration. As shown, the minimum tem-perature for incandescence for the dark-adapted eye is about 390°C (730°F). Under these ideal observing conditions, the incandescence appears as a colorless glow. The dull red light commonly associated with incandescence of objects in a lighted room requires a temperature of about 500°C (930°F). See Blackbody, Heat radiation

Relation between brightness of blackbody and temperatureenlarge picture
Relation between brightness of blackbody and temperature

incandescence

[‚in·kən′des·əns]
(optics)
The emission of visible radiation by a hot body.

incandescence

The emission of visible light as a result of heating.
References in periodicals archive ?
Yet the paintings also met Blake's and Archer's own criteria for art: invention and visionary conception, and strangeness and incandescence.
En vue d'assurer une maEtrise de la demande en electricite, l'Office poursuivra, a partir de 2014, le programme [beaucoup moins que]INARA[beaucoup plus grand que] pour le remplacement progressif de 10 millions de lampes a incandescence par les lampes a basse consommation chez les clients residentiels et administratifs.
31) This, for instance, is roughly Leise's argument in "That little incandescence.
Around about 80% of homicides are committed by first offenders frequently during a bout of uncontrolled incandescence generating moments of unprecedented behaviour they will spend a lifetime regretting.
Commercially available stainless steel wires have a range of values both for elasticity and yield strength related to the change in different parameters at their production stage such as freezing and incandescence during cold working.
But that anger turned to incandescence when Stan Rosenfield, his publicist, and someone who has always been a good friend to the show, put out a statement: "Piers needs to take responsibility for what he did to Kelsey.
Contractor name : LASER INDUCED INCANDESCENCE SOOT MEASURING DEVICE
Thankfully, David Cameron - a man who would annoy me even if he was handing me bars of gold bullion - is always capable of taking me to the next level of incandescence.
Cenapred said: "During the night, moderate to intense incandescence could be observed over the crater, as well as the emission of a continuous plume, reaching 1km high, with denser pulses containing small amounts of ash.
But Saidman Yee, whether perching beatifically in full lotus position before 40-odd prone bodies or prowling among them like a jungle cat, emits at 53 her own curious, almost celestial incandescence.
By the end of my field season, the midnight sun was beginning to dip down lower and lower toward the horizon, glowing with a faint, creamy incandescence.