Lumen may refer to: *

Lumen (unit) The lumen (symbol: lm) is the SI unit of luminous flux, which quantifies the perceived power of visible light emitted by a source. Luminous flux differs from power (radiant flux), which encompasses all electromagnetic waves emitted, including ...

, the SI unit of luminous flux *

Lumen (anatomy) In biology, a lumen (: lumina) is the inside space of a tubular structure, such as an artery or intestine. It comes . It can refer to: *the interior of a vessel, such as the central space in an artery, vein or capillary through which blood flows ...

, 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 (website) Lumen, formerly Chilling Effects, is an American collaborative archive created by Wendy Seltzer and operated by the Berkman Klein Center for Internet & Society at Harvard University Harvard University is a Private university, private ...

, a database of Digital Millennium Copyright Act takedown requests *

141 Lumen 141 Lumen is a carbonaceous asteroid from the intermediate asteroid belt, approximately 130 kilometers in diameter. It is an identified Eunomia family#Interlopers, Eunomian interloper. Description It was discovered on January 13, 1875, by th ...

, an asteroid * Lumen Martin Winter (1908–1982), American artist * Lumen (metabolism tracker), a health and wellness product * Lumen Pierce, a fictional character in the television series ''Dexter'' *

Lumen Technologies Lumen Technologies, Inc. (formerly CenturyLink, Inc.) is an American telecommunications company headquartered in Monroe, Louisiana, which offers communications, network services, security, cloud solutions, voice and managed services through ...

, telecommunications company formerly known as CenturyLink * Stellar Lumens, a cryptocurrency and payment network * USS ''Lumen'' (AKA-30), a US Navy ship * Lumen (dating app), a dating app for people over fifty * Lumen, an office building in Warsaw, Poland, part of Złote Tarasy complex * ''Lumen'' (novel), an 1887 novel by

Camille Flammarion Nicolas Camille Flammarion FRAS (; 26 February 1842 – 3 June 1925) was a French astronomer and author. He was a prolific author of more than fifty titles, including popular science works about astronomy, several notable early science fiction ...

See also