Dictionary

megacandela en · NOUN

Etymology

From mega- + candela.

Meanings

1. An SI unit of luminous intensity equal to 10⁶ candelas. Symbol: Mcd
   • Searchlights utilized in helicopter operations range in size from a 450-watt, 0.4 megacandela unit using a type PAR-46 incandescent lamp (see Fig 20-3) up to a 30-kilowatt, xenon-lamped unit[.] 1987, John E. Kaufman, Jack F. Christensen, IES Lighting Handbook: Application volume, →ISBN:
   • Under clear sky conditions the luminance of the sun itself is around 1650 Mcd/m² (megacandela/m²)[.] 1980, S. V. Szokolay, Environmental science handbook for architects and builders, page 99:
   • The light-emitting capacity of an LED is measured in megacandela [recte millicandelas] or mcd. Small commercial LEDs range from 10 to about 5000 mcd. 2012, Julio Sanchez, Maria P. Canton, Embedded Systems Circuits and Programming, →ISBN, page 12:

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