- lumen per steradian
- люмен/стерадиан
English-Russian dictionary of program "Mir-Shuttle". С.В. Курбатов.. 2015.
lumen per steradian
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lumen — ► NOUN Physics ▪ the SI unit of luminous flux, equal to the amount of light emitted per second in a unit solid angle of one steradian from a uniform source of one candela. ORIGIN Latin, light … English terms dictionary
Lumen — A luminous term referring to the channel within a tube such as a blood vessel or to the cavity within a hollow organ such as the intestine. Lumen is a luminous term because it is Latin for light, including the light that comes through a window.… … Medical dictionary
Lumen (unit) — The lumen (symbol: lm) is the SI unit of luminous flux, a measure of the perceived power of light. Luminous flux differs from radiant flux, the measure of the total power of light emitted, in that luminous flux is adjusted to reflect the varying… … Wikipedia
lumen — n. 1 Physics the SI unit of luminous flux, equal to the amount of light emitted per second in a unit solid angle of one steradian from a uniform source of one candela. Usage: Abbr.: lm. 2 Anat. (pl. lumina) a cavity within a tube, cell, etc.… … Useful english dictionary
lumen — lumen1 [ lu:mɛn] (abbrev.: lm) noun Physics the SI unit of luminous flux, equal to the amount of light emitted per second in a unit solid angle of one steradian from a uniform source of one candela. Origin C19: from L., lit. light . lumen2 [… … English new terms dictionary
lumen — n. 1) the space within a tubular or sac like part, such as a blood vessel, the intestine, or the stomach. 2) the SI unit of luminous flux, equal to the amount of light emitted per second in unit solid angle of 1 steradian by a point source of 1… … The new mediacal dictionary
luminous intensity — Optics. the luminous flux in lumens emitted per unit solid angle by a light source, measured in candles. * * * ▪ physics the quantity of visible light that is emitted in unit time per unit solid angle. The unit for the quantity of light… … Universalium
Light — For other uses, see Light (disambiguation). Visible light redirects here. For other uses, see Visible light (disambiguation) … Wikipedia
Exposure (photography) — Underexposure redirects here. For the 2005 film by Oday Rasheed, see Underexposure (2005 film). A long exposure showing stars rotating around the southern and northern celestial poles. Credit: European Southern Observatory … Wikipedia
Conversion of units — is the conversion between different units of measurement for the same quantity, typically through multiplicative conversion factors. Contents 1 Techniques 1.1 Process 1.2 Multiplication factors … Wikipedia
Candela — This article is about the unit of luminous intensity. For other uses, see Candela (disambiguation). Photopic (black) and scotopic[1] (green) luminosity functions. The photopic includes the CIE 1931 standard[2] … Wikipedia
