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Светимость
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- Относительная яркость. яркость поверхности или источника света, относительно абсолютно белого эталона.
- , величина полного светового потока, испускаемого единицей поверхности источника света. измеряется в лм/м2 (в си).
- Отношение светового потока, испускаемого светящейся поверхностью, к площади этой поверхности
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Lightness, английский
- The attribute of visual perception in accordance with which an area appears to emit or reflect more or less light. also refers to the perception by which white objects are distinguished from gray objects, and light from dark colored objects.
- The whiteness of a painted surface as measured by the amount of light reflected from it.
- Осветленность; осветление
- The quality of a color that makes it appear brighter (closer to white) or darker (closer to black).
Luminance, английский
- Brightness. in cctv refers to the part of the video signal that contains information about the scene brightness.
- Яркость. составляющая изображения, определяющая его относительную яркость в каждой точке экрана монитора
- This refers to the part of a video signal that carries the monochrome information. i.e. brightness information.
- Luminous intensity (photometric brightness) of any surface in a given direction per unit of projected area of the surface as viewed from that direction, measured in foot lamberts (fl).
- Luminous intensity (photometric brightness) of any surface in a given direction per unit of projected area of the surface as viewed from that direction, measured in footlamberts (fl).
- Refers to the video signal information about the scene brightness. the measurable,
- The part of a composite video signal that expresses brightness. also called y. separately transmitted in y/c (s-video).
- 1. luminous flux emitted, rejected, or transmitted per unit of solid angle per projected area of the source. 2. the photometric equivalent of brightness. 3. the brightness part of a television picture.
- Refers to the video signal information about the scene brightness. the measurable, luminous intensity of a video signal. differentiated from brightness in that the latter is nonmeasurable and sensory. the color video picture information contains two components, luminance (brightness and contrast) and chrominance (hue and saturation). the photometric quantity of light radiation.
- The luminous intensity of any surface in a given direction per unit of projected area of the surface, as viewed from that direction; a directional property of luminous radiation.
- The perceived brightness component of a given color, as opposed to its hue or its saturation.
- Яркость. относится к содержащейся в видеосигнале информации об освещенности объекта. фотометрическая единица измерения светового излучения.
- Ratio of a surface’s luminous intensity in a given direction to a unit of projected area. measured in candela per square meter.
- Photometric brightness of a light source defined by the density of its luminous intensity, measured as luminous flux per unit solid angle per unit area in a given direction. reported in candela per square meter (cd·m–2).
- Photometric brightness of a light source defined by the density of its luminous intensity, measured as luminous flux per unit solid angle per unit area in a given direction. reported in candela per square meter (cd/m2). compare illuminance. 504 glossary l-m luminous efficacy; luminous efficiency: ratio of the total luminous flux of a light source to the total radiant flux or to the power input.
- Photometric brightness of a light source as defined by the density of its luminous intensity. luminance is a measure of the luminous flux per unit solid angle per unit area in a given direction and is reported in candela per square meter (cd·m–2).
Легкость, русский
Leichtigkeit, немецкий
Ligereza, испанский
Radiance, английский
- A measure of the output of a point source; the amount of power per unit area
- The rate of radiant emission per unit solid angle and per unit projected area of a source in a stated angular direction from the surface.
- The amount of light refracted and reflected by a diamond, also referred to as "life" or "sparkle."
- Radiant flux per unit solid angle and per unit projected area of the source. measured in watts per square meter steradian. compare irradiance.
- A measure of radiant flux density (per unit projected area) per unit solid angle. radiance is independent of distance, is measured in watts per square meter steradian (w/m2 ? sr–1) and may describe emitted or received energy. compare irradiance.
Light conduit, английский
Conducteur de la lumiere, французский
Exitance, английский
Светимость
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Относительная, русский
Поверхности, русский
Относительно, русский
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Linear, английский
- Линейный
- Video technology designed to be played from beginning to end without stops.
- A линейный interpreter l~ a линейное письмо а l~ b линейное письмо б linearisation n линеаризация linearity n линейность
- A proportional relation between two quantities, e.g., in 46 the equation y=cx, c is the constant y/x and states that y is a linear function of x. the term comes from the straight line with which such a function can be visualized within x-y coordinates. the notion of linearity is generalized to relations between many quantities, expressed in the form of linear equations, to a concept of time that progresses from an indefinite past to an indefinite future without parallel paths or loops, and to a causal network or lattice which proceeds directionally from antecedents to consequences without feedback.
Lightness, английский
- The attribute of visual perception in accordance with which an area appears to emit or reflect more or less light. also refers to the perception by which white objects are distinguished from gray objects, and light from dark colored objects.
- The whiteness of a painted surface as measured by the amount of light reflected from it.
- Осветленность; осветление
- The quality of a color that makes it appear brighter (closer to white) or darker (closer to black).
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