- luminance measurement
- измерение яркости
English-russian dictionary of physics. 2013.
luminance measurement
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Stilb (luminance) — The stilb (sb) is the CGS unit of luminance. It is equal to one candela per square centimeter or 104 nits (candelas per square meter). The name was coined by the French physicist André Blondel around 1920. [Parry Moon. System of photometer… … Wikipedia
bril — a unit used to express the brilliance or subjective brightness of a source of light. The scale used is logarithmic: an increase of 1 bril means doubling the luminance (and thus the actual amount of light energy) emitted by the source. A… … Dictionary of units of measurement
footlambert — (fL, fl or ftL) a unit of luminance, the brightness of a surface. The footlambert describes the luminance of a surface that emits or reflects one lumen per square foot; it is the luminance of a perfectly reflecting surface under an… … Dictionary of units of measurement
lambert — (La or Lb or L) a CGS unit of luminance. Luminance is the luminous intensity of a surface, measuring the intensity of the light emitted (or reflected) in all directions per unit of area of the surface. One lambert is the luminance of a surface … Dictionary of units of measurement
apostilb — (asb) an MKS unit of luminance, equal to the brightness produced by 1/pi candela per square meter or 10 4 lambert. The name of the unit is pseudo Greek for luminance; it combines the ancient Greek stilbein, to glitter or shine, with the… … Dictionary of units of measurement
meterlambert — or meter lambert another name for the nit, an MKS unit of luminance equal to one candela per square meter. The name is coined by analogy with the footlambert … Dictionary of units of measurement
nit — (nt) an MKS unit of luminance, equal to one candela per square meter, or 10 4 stilb. The nit is not approved as part of the SI, but it has been approved since 1947 by the International Commission on Illumination (CIE) and is in wide use. The… … Dictionary of units of measurement
skot — a unit of (low) luminance equal to 0.001 apostilb. This unit was used in Germany during World War II to describe permitted levels of lighting during air raids. One skot is the brightness of a surface produced by 1 nox or 0.001 lux of light … Dictionary of units of measurement
stilb — (sb) a CGS unit of luminance, equal to one candela per square centimeter or 104 nits (candelas per square meter). This is equal to 104pi = 31415.9 apostilbs. The name, believed to have been coined by the French physicist André Blondel (1863… … Dictionary of units of measurement
troland — (Td) a unit used in photometry to measure the amount of light reaching the retina of the eye. The retinal illuminance in trolands is equal to the luminance of the light shining on the eye, measured in candelas per square meter (cd/m2),… … Dictionary of units of measurement
Multiple sub-Nyquist sampling encoding — MUSE (Multiple sub Nyquist sampling encoding), was a dot interlaced digital video compression system that used analog modulation for transmission to deliver 1125 line high definition video signals to the home. Japan had the earliest working HDTV… … Wikipedia
