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Words starting with lumenh

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Maybe these words will be useful:
  • lumenal — Of or pertaining to the lumen.
  • lumens — Plural form of lumen.
  • lumen — Optics. the unit of luminous flux, equal to the luminous flux emitted in a unit solid angle by a point source of one candle intensity. Abbreviation: lm.
  • lumen-hour — a unit of luminous energy, equal to that emitted in 1 hour by a light source emitting a luminous flux of 1 lumen. Abbreviation: lm-hr.
  • luminophore — a molecule or group of molecules that emits light when illuminated.
  • luminosity — luminance (def 2).
  • luminosity class — a classification of stars of a given spectral type according to their luminosity, breaking them down into dwarfs, giants, and supergiants.
  • luminous — radiating or reflecting light; shining; bright.
  • luminous efficacy — the quotient of the luminous flux of a radiation and its corresponding radiant flux
  • luminous efficiency — the perceived brightness of light as a ratio of the total luminous flux to total radiant flux of the source; a measure of brightness obtained by dividing the source's luminous flux by the consumption of its energy.