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luminescence, emission of light by certain materials when they are relatively cool. It is in contrast to light emitted from incandescent bodies, such as burning wood or coal, molten iron, and wire heated by an electric current.
Luminescence is a spontaneous emission of radiation from an electronically or vibrationally excited species not in thermal equilibrium with its environment. [1] A luminescent object emits cold light in contrast to incandescence, where an object only emits light after heating. [2]
The meaning of LUMINESCENCE is the low-temperature emission of light (as by a chemical or physiological process); also : light produced by luminescence. How to use luminescence in a sentence.
May 14, 2023 · Luminescence is a process by which a substance emits light without becoming noticeably heated. The term comes from the Latin word “lumen”, meaning “light.”. In contrast, incandescence is light resulting from heating a material so that it emits blackbody radiation.
May 27, 2023 · Luminescence is the scientific trick that makes them glow at night, long after all the other sources of light are dim... but what is it, and how exactly does it work?
the giving out of light by a substance that has not been heated: A variety of lighting elements are used, from LED to chemical luminescence. Compare. incandescence. literary. soft light: The car headlights lit the driveway with a pool of bright luminescence. The table-lamp threw a soft luminescence across the chair. See. luminescent. Fewer examples
The emission of light as a result of the excitation of atoms by energy other than heat. Bioluminescence, fluorescence, and phosphorescence are examples of luminescence that can be produced by biological or chemical processes. The light produced in this way. Discover More.
