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illuminance |
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illuminance: see photometry photometry (fōtŏm`ətrē) ..... Click the link for more information. . illuminance [ə′lü·mə·nəns] (optics) The density of the luminous flux on a surface. Also known as illumination; luminous flux density. Illuminance A term expressing the density of luminous flux incident on a surface. This word has been proposed by the Colorimetry Committee of the Optical Society of America to replace the term illumination. The definitions are the same. The symbol of illumination is E, and the equation is E = dF/dA, where A is the area of the illuminated surface and F is the luminous flux. See Luminous flux, Photometry How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| While, with both Natural Illuminance (1999) and Natural Slats (2000-2001), more direct explorations with modulation and composition brought new boundary opportunities. In both of these we consider the calculation of illuminance response to CIE illuminant D65, a tabulated distribution carrying no uncertainty, for a photometer whose spectral response is a close approximation to [V. can measure tristimulus colorimetrics, chromaticity, color difference, and both color temperature and illuminance of light sources. |
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