לדלג לתוכן הראשי

noun

illuminance

the luminous flux incident on a unit area

In a sentence

Six example sentences with illuminance, each labelled with its topic.

  • A handheld meter reports the illuminance falling on the model's cheek so the exposure never depends on guesswork.

    Photography

  • Building codes set a minimum illuminance for stairwells, measured at the tread rather than at the ceiling fitting.

    Architecture

  • Seedlings grown at low illuminance stretched toward the lamp and produced far fewer leaves than the control tray.

    Science

  • Conservators cap the illuminance on the watercolours at fifty lux, which is why the gallery feels dim after the sculpture hall.

    Art

  • The phone's light sensor reports the illuminance around it, and the screen dims the moment you walk into a dark room.

    Technology

  • Winter light therapy lamps deliver an illuminance of ten thousand lux, roughly twenty times a bright office.

    Medicine

Study illuminance until you keep it

Learn English words in sentences about topics you pick, with a quick quiz. With an account, words come back for review.

Found in these word lists

Each source is a published word list that contains illuminance. No exam board publishes an official GRE, GMAT or SAT list; GMAT words come from GRE lists and the Academic Word List.