What (who) is lumen - definition
WIKIMEDIA DISAMBIGUATION PAGE
Lumen (disambiguation)
Lumen
·add. ·noun An opening, space, or cavity, ·esp. a tubular cavity; a vacuole.
II. Lumen ·add. ·noun A unit of light flux, being the flux through one square meter of surface the illumination of which is uniform and of unit brightness.
III. Lumen ·add. ·noun A unit of illumination, being the amount of illumination of a unit area of spherical surface, due to a light of unit intensity placed at the center of the sphere.
lumen
lumen1 ['lu:m?n]
(abbrev.: lm)
¦ noun Physics the SI unit of luminous flux, equal to the amount of light emitted per second in a unit solid angle of one steradian from a uniform source of one candela.
Origin
C19: from L., lit. 'light'.
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lumen2 ['lu:m?n]
¦ noun (plural lumina -m?n?) Anatomy the central cavity of a hollow structure in an organism or cell.
Derivatives
luminal 'lu:m?n(?)l adjective
Origin
C19: from L., lit. 'opening'.
Lumens
![An [[LED lamp]] capable of producing 470 lumens. It consumes about one sixth the energy of an [[incandescent light bulb]] producing the same light.](https://commons.wikimedia.org/wiki/Special:FilePath/V-LIGHT A314.JPG?width=200 "An [[LED lamp]] capable of producing 470 lumens. It consumes about one sixth the energy of an [[incandescent light bulb]] producing the same light.")
SI UNIT OF LUMINOUS FLUX
㏐; ANSI Lumens; Ansi lumens; Ansi lumen; ANSI lumen; Lumens; Peak lumen; Orders of magnitude (luminous flux); Orders of magnitude (lumen); New lumen; Millilumen; Lumen unit
·add. ·pl of Lumen.
Wikipedia
Lumen
Lumen can refer to:
- Lumen (unit), the SI unit of luminous flux
- Lumen (anatomy), the cavity or channel within a tubular structure
- Lumen (band), a Russian rock band
- Lumen (branding agency), a design and branding company headquartered in Milan, Italy
- The Lumen (Cleveland), a skyscraper in downtown Cleveland
- Lumen (novel), an 1887 book by Camille Flammarion
- Lumen (website), a database of Digital Millennium Copyright Act takedown requests
- 141 Lumen, an asteroid
- Lumen Martin Winter (1908–1982), American artist
- Lumen Pierce, a fictional character in the television series Dexter
- Lumen Technologies, telecommunications company formerly known as CenturyLink
- Stellar Lumens, a cryptocurrency and payment network
- USS Lumen (AKA-30), a US Navy ship
- Lumen, a dating app owned by MagicLab
Pronunciation examples for lumen
1. per lumen.
10,000 Years of Home Comfort _ Matt Grocoff _ Talks at Google
2. which is actually the lumen.
ted-talks_984_HeribertWatzke_2010G-320k
3. LUMEN-TRAVELING BIOLOGICAL INTERFACE DEVICE.
How Becoming Part Computer Made Me More Human _ Michael Chorost _ Talks at Google
4. NOW, A LUMEN IS A SURFACE. OKAY?
How Becoming Part Computer Made Me More Human _ Michael Chorost _ Talks at Google
5. OKAY, LUMEN-TRAVELING BIOLOGICAL INTERFACE DEVICE.
How Becoming Part Computer Made Me More Human _ Michael Chorost _ Talks at Google
Examples of use of lumen
1. The stent is covered with heterologous tissue, which is designed to set a barrier between the coronary blood vessel wall and its lumen.
2. The unique quality of the Over and Under stents is that they are 100% covered with heterologous tissue, designed to set a barrier between the coronary blood vessel wall and its lumen. (TheMarker) Yitzhak Tshuva‘s Delek Group is taking advantage of the plunge in Delek Real Estate‘s share price to buy up some of its stock.