• Thumbnail for Luminous efficiency function
    A luminous efficiency function or luminosity function represents the average spectral sensitivity of human visual perception of light. It is based on...
    16 KB (1,569 words) - 00:54, 4 November 2024
  • Thumbnail for Candela
    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...
    17 KB (2,176 words) - 20:06, 28 October 2024
  • human eye. Luminous efficacy can be normalized by the maximum possible luminous efficacy to a dimensionless quantity called luminous efficiency. The distinction...
    30 KB (2,271 words) - 15:31, 13 September 2024
  • 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)...
    9 KB (1,014 words) - 15:51, 20 November 2024
  • Thumbnail for Visible spectrum
    spectral sensitivity functions of the visual opsins. The range is defined psychometrically by the luminous efficiency function, which accounts for all...
    37 KB (4,028 words) - 19:34, 28 November 2024
  • Thumbnail for Luminous flux
    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...
    8 KB (697 words) - 06:20, 13 May 2024
  • Thumbnail for CIE 1931 color space
    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 (7,636 words) - 12:05, 19 November 2024
  • Thumbnail for Illuminance
    wavelength-weighted by the luminosity function to correlate with human brightness perception. Similarly, luminous emittance is the luminous flux per unit area emitted...
    7 KB (702 words) - 20:52, 2 September 2024
  • 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) - 06:04, 23 December 2024
  • Thumbnail for Transmittance
    the filter V ( λ ) {\displaystyle V(\lambda )} is the luminous efficiency function The luminous transmittance is independent of the magnitude of the flux...
    8 KB (1,129 words) - 19:02, 22 March 2024
  • related to the luminous flux density in a particular direction, which is radiant flux density weighted by the luminous efficiency function y ¯ ( λ ) {\displaystyle...
    7 KB (1,048 words) - 05:40, 25 June 2024
  • Thumbnail for LMS color space
    ) {\displaystyle {\bar {y}}_{\text{F}}(\lambda )} CMF is the luminous efficiency function originally proposed by Sharpe et al. (2005), but then corrected...
    25 KB (3,562 words) - 01:42, 9 July 2024
  • measure of light, spectrally weighted per the Luminous efficiency function. Luminous efficiency function, in colorimetry, the curve which defines the visual...
    1 KB (229 words) - 17:11, 7 February 2022
  • Thumbnail for Super-LumiNova
    optimize (perceived) light emission, dictated by the human eye luminous efficiency function variance. Maximal light emission around wavelengths of 555 nm...
    12 KB (1,338 words) - 12:44, 24 September 2024
  • the luminous efficiency function, which represents the eye's sensitivity to different wavelengths of light. Luminous energy is the integrated luminous flux...
    2 KB (406 words) - 21:11, 17 March 2024
  • Thumbnail for International Commission on Illumination
    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...
    9 KB (656 words) - 22:38, 11 November 2024
  • Thumbnail for Lumen (unit)
    all electromagnetic waves emitted, while luminous flux is weighted according to a model (a "luminosity function") of the human eye's sensitivity to various...
    13 KB (1,397 words) - 15:05, 23 October 2024
  • 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...
    12 KB (1,768 words) - 16:01, 27 July 2024
  • Thumbnail for Telescopic sight
    preferred, to optimize light transmission dictated by the human eye luminous efficiency function variance. Maximal light transmission around wavelengths of 555 nm...
    86 KB (10,871 words) - 19:58, 27 November 2024
  • Thumbnail for A-weighting
    Headroom Rumble measurement Weighting filter Weighting curve Luminous efficiency function, the light equivalent LKFS dBrn adjusted is not a synonym for...
    26 KB (3,479 words) - 03:11, 31 July 2024
  • to be more sensitive at lower wavelengths than the photopic luminous efficiency function that is based on sensitivity to cone receptors. The core region...
    27 KB (3,164 words) - 22:05, 30 November 2024
  • Thumbnail for Congenital red–green color blindness
    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...
    36 KB (3,281 words) - 12:49, 23 September 2024
  • Thumbnail for Binoculars
    preferred, to optimize light transmission dictated by the human eye luminous efficiency function variance. Maximal light transmission around wavelengths of 555 nm...
    98 KB (11,099 words) - 11:59, 6 November 2024
  • Thumbnail for Lux
    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...
    23 KB (2,505 words) - 17:48, 6 November 2024
  • Thumbnail for Light-emitting diode
    capability, and luminous efficacy. Often, higher efficiency means lower color rendering, presenting a trade-off between the luminous efficacy and color...
    112 KB (12,330 words) - 19:53, 22 December 2024
  • Thumbnail for Photometry (optics)
    light are weighted according to a function called the "photopic spectral luminous efficiency." According to this function, 700 nm red light is only about...
    13 KB (1,838 words) - 14:44, 20 December 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...
    32 KB (3,317 words) - 16:57, 13 November 2024
  • Thumbnail for Incandescent light bulb
    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...
    107 KB (12,005 words) - 18:42, 21 December 2024
  • Thumbnail for Street light
    measurement systems were created to bridge the scotopic and photopic luminous efficiency functions, creating a Unified System of Photometry. These mesopic visual...
    68 KB (7,704 words) - 05:18, 5 December 2024
  • Thumbnail for Deane B. Judd
    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...
    9 KB (1,046 words) - 20:08, 2 December 2024