6. Glossary

Photometry

Measurement of quantities relating to radiation as evaluated according to a given spectral relative luminous efficacy function, e.g. V (λ) or V ′ (λ).

Spectral luminous efficiency

It is the ratio of the energy flux of wavelength λ _m to the flux of wavelength λ (figure 13 ), the two radiations producing equally intense luminous sensations under specific photometric conditions and λ _m being chosen so that the maximum value of this ratio is equal to 1 :
- V (λ) for photopic vision (normal eye adapted to luminance levels...

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Bibliography

Lighting project – Street lighting calculation software

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National Day of Light organized every even-numbered year by AFE.

Photometry
- Light and lighting – Basic terms and criteria for specifying lighting requirements. - NF EN 12665 - Septembre 2011
- Mesure et présentation des données photométriques des lampes et des luminaires. - NF EN 13032-1 - Mai 2012
- Measurement and presentation of photometric data for lamps and luminaires – Part 4: LED lamps, modules and luminaires. - NF EN 13032-4...

Article L 2212-2 of the General Code of Local Authorities

Mention of the scope of the mayor's police powers: "The purpose of the municipal police is to ensure good order, safety, security and public health. This includes in particular: all matters concerning the safety and convenience of passage in streets, quays, squares and public thoroughfares, including cleaning, lighting...