Team:Cambridge/Tools/Lighting

From 2010.igem.org

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=Modelling=
=Modelling=
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{{:Team:Cambridge/Templates/RightImage|image=Solar_Spectrum.png|caption=''Figure 1: The  solar radiation spectrum for direct light at both the top of the Earth's atmosphere and at sea level.''}}
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{{:Team:Cambridge/Templates/RightImage|image=Fischerispectrum.jpg|caption=''Figure 2: The emission spectrum of V. Fischeri (shown in black)''}}
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{{:Team:Cambridge/Templates/RightImage|image=photopicscotopic.png|caption=''Figure 3: Photopic (black) and scotopic (green) luminosity functions.''}}
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:<math>F=683.002\ \mathrm{lm/W}\cdot \int^\infin_0 \overline{y}(\lambda) J(\lambda) d\lambda</math>
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where
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:<math>F\,</math> is the luminous flux in [[lumen (unit)|lumen]]s,
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:<math>J(\lambda)\,</math> is the [[spectral power distribution]] of the radiation (power per unit wavelength), in watts per metre.
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:<math>\overline{y}(\lambda)</math> (also known as <math>V(\lambda)\,</math>) is the standard luminosity function (which is dimensionless).
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:<math>\lambda\,</math> is wavelength in metres.
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American Society for Testing and Materials (ASTM) Terrestrial Reference Spectra, a common standard used in photovoltaics
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1,413 – 1,321W/m<sup>2</sup>
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"Chapter 8 – Measurement of sunshine duration" (PDF). CIMO Guide. World Meteorological Organization. http://www.wmo.int/pages/prog/www/IMOP/publications/CIMO-Guide/CIMO%20Guide%207th%20Edition,%202008/Part%20I/Chapter%208.pdf. Retrieved 2008-12-01.
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Revision as of 15:28, 26 October 2010