klieg light

type of strong arc lamp formerly used in the movie industry (invented by John and Anton Kliegl); any powerful spotlight used in television or movie studios

Film A klieg light is an intense carbon arc lamp especially used in filmmaking. It is named after inventor John H. Kliegl and his brother Anton Tiberius Kliegl. Modern klieg lights use a tungsten-halogen filament. They usually have a fresnel lens or ellipsoidal lens. The carbon-arc source was so bright that it allowed film directors to make "day" at night, which also heralded the era of blinding actors—a term coined as "Klieg eye".
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Noun
1. carbon arc lamp that emits an intense light used in producing films
(hypernym) carbon arc lamp, carbon arc

klieg light, type of strong arc lamp formerly used in the movie industry; any powerful spotlight used in television or movie studios

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