A luminous efficiency function or luminosity function represents the average spectral sensitivity of human visual perception of light. It is based on...
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Candela (category Units of luminous intensity)
spectrum, the contribution of each wavelength is weighted by the luminous efficiency function, the model of the sensitivity of the human eye to different wavelengths...
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human eye. Luminous efficacy can be normalized by the maximum possible luminous efficacy to a dimensionless quantity called luminous efficiency. The distinction...
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angle, based on the luminosity function, a standardized model of the sensitivity of the human eye. The SI unit of luminous intensity is the candela (cd)...
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spectral sensitivity functions of the visual opsins. The range is defined psychometrically by the luminous efficiency function, which accounts for all...
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function". "Sharpe, Stockman, Jagla & Jägle (2005) 2-deg V*(l) luminous efficiency function". Archived from the original on 2007-09-27. Retrieved 2007-05-10...
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related to the luminous flux density in a particular direction, which is radiant flux density weighted by the luminous efficiency function y ¯ ( λ ) {\displaystyle...
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CIE 1931 color space (redirect from Color matching function)
matching function would be exactly equal to the photopic luminous efficiency function V(λ) for the "CIE standard photopic observer". The luminance function describes...
55 KB (7,607 words) - 22:04, 28 August 2024
Mesopic vision (redirect from Spectral luminous efficiency for mesopic vision)
sensitivity function V(λ) which was defined in 1924. In 1951, the International Commission on Illumination (CIE) established the scotopic luminous efficiency function...
9 KB (1,093 words) - 04:27, 17 June 2024
Transmittance (section Luminous transmittance)
the filter V ( λ ) {\displaystyle V(\lambda )} is the luminous efficiency function The luminous transmittance is independent of the magnitude of the flux...
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) {\displaystyle {\bar {y}}_{\text{F}}(\lambda )} CMF is the luminous efficiency function originally proposed by Sharpe et al. (2005), but then corrected...
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measure of light, spectrally weighted per the Luminous efficiency function. Luminous efficiency function, in colorimetry, the curve which defines the visual...
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optimize (perceived) light emission, dictated by the human eye luminous efficiency function variance. Maximal light emission around wavelengths of 555 nm...
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the luminous efficiency function, which represents the eye's sensitivity to different wavelengths of light. Luminous energy is the integrated luminous flux...
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defined by the spectral luminous efficiency function V(λ), followed in 1951 by the standard scotopic observer defined by the function V’(λ). Building on the...
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Lumen (unit) (redirect from Orders of magnitude (luminous flux))
all electromagnetic waves emitted, while luminous flux is weighted according to a model (a "luminosity function") of the human eye's sensitivity to various...
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should be made with visible light according to CIE spectral luminous efficiency function V(λ) in the CIE 1931 standard observer and CIE standard illuminant...
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preferred, to optimize light transmission dictated by the human eye luminous efficiency function variance. Maximal light transmission around wavelengths of 555 nm...
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Headroom Rumble measurement Weighting filter Weighting curve Luminous efficiency function, the light equivalent LKFS dBrn adjusted is not a synonym for...
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often confuse red with black, while deutans do not. The protan luminous efficiency function is narrower at long wavelengths, which causes the reds to be...
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as a percentage known as the luminous efficiency. For example, a typical incandescent light bulb has a luminous efficiency of only about 2%. In reality...
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to be more sensitive at lower wavelengths than the photopic luminous efficiency function which is based on sensitivity to cone receptors. The core region...
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Illuminance (redirect from Luminous emittance)
wavelength-weighted by the luminosity function to correlate with human brightness perception. Similarly, luminous emittance is the luminous flux per unit area emitted...
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preferred, to optimize light transmission dictated by the human eye luminous efficiency function variance. Maximal light transmission around wavelengths of 555 nm...
98 KB (11,096 words) - 16:26, 22 August 2024
light are weighted according to a function called the "photopic spectral luminous efficiency." According to this function, 700 nm red light is only about...
12 KB (1,826 words) - 05:02, 5 May 2024
capability, and luminous efficacy. Often, higher efficiency means lower color rendering, presenting a trade-off between the luminous efficacy and color...
167 KB (18,444 words) - 19:18, 3 September 2024
mechanisms can cause slow loss of efficiency of the device or sudden failure. The wavelength of the light emitted is a function of the band gap of the semiconductor...
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watt (lm/W). The luminous efficiency of a source is defined as the ratio of its luminous efficacy to the maximum possible luminous efficacy, which is...
105 KB (11,935 words) - 01:30, 27 August 2024
in which a heated body, naturally incapable of emitting light, becomes luminous, is called a state of incandescence. John E. Bowman (1856). An Introduction...
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subjects. In 1951, he proposed a modification of the CIE 1924 luminous efficiency function V(λ) below 460 nm that became known as Judd-modified V(λ), not...
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