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foot-lambert

/ˈfʊt ˈlæm.bərt/

1 entry

noun

/ˈfʊt ˈlæm.bərt/C2formaltechnical
  • ruУстаревшая единица яркости, равная одному люмену на квадратный фут, использовавшаяся в основном в США для измерения яркости.

A former unit of luminance equal to one lumen per square foot, used primarily in the United States for measuring brightness.

  1. C2formalscientific

    A former unit of luminance equal to one lumen per square foot, used to measure the brightness of a surface.

    ruФут-ламберт

    • The screen's brightness was measured at 50 foot-lamberts.
    • Older projectors were often rated in foot-lamberts.
    • The calibration standard required a luminance of 20 foot-lamberts.
Forms
  • foot-lamberts plural form
  • foot-lamberts' possessive plural form
  • foot-lambert's possessive singular form