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3. Summary comparison of emissions from sources to LE
3.1 Solar irradiance
Let's start with the sun, even though the sun is not an artificial form of radiation. Solar radiation is modeled by a black body at 5,800 K with an emission maximum at 520 nm, half of which is in the visible, the other half in the IR (25% of radiation is below 520 nm and 75% above, part of which is in the IR with V (λ) ≈ 0). UV represents around 1% of radiation. Solar irradiance at the earth's surface is around 1 kW · m –2 (depending on surface location, atmospheric transparency, clouds...). This corresponds to a visual illuminance of around 10 5 lx. The total power emitted by the sun is 4 × 10 26 W.
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Summary comparison of emissions from sources to LE
Data needed to compare LE with source emissions
Bibliography
Legislative texts
Decree no. 2010-750 of July 2, 2010 on the protection of workers against risks due to artificial optical radiation
Directive 2006/25/EC of the European Parliament and of the Council of April 5, 2006 on the minimum health and safety requirements regarding the exposure of workers to the risks arising from physical agents (artificial radiation).
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