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AssigneeKoninklijke Philips N.V.
InventorsRUSLAN AKHMEDOVICH SEPKHANOV, FETZE PIJLMAN, SIEBE TJERK DE ZWART
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The invention relates to a luminaire for road illumination, said luminaire (1) comprising a housing (3) containing a light source (5) provided with optics (6). The luminaire further comprising a sensor unit (7) adapted to measure optical properties of the surrounding of the luminaire and a calculation unit adapted to calculate the parameters for controlling the light output of the luminaire based on the optical properties measured by the sensor unit. According to the invention, the sensor unit is adapted to measure specular and diffuse reflection properties of the surrounding of the luminaire. These optical properties allow determining the type of weather or the road condition and adjustment of the light output of the luminaire, thus improving the road safety.
Luminaire for road illumination, said luminaire comprising a housing containing a light source provided with optics, the luminaire further comprising a sensor unit adapted to determine optical properties of a reflective reference surface or road surface in the surrounding of the luminaire by measuring light properties of light being reflected by said reflective reference surface or road surface and a calculation unit adapted to calculate the parameters for controlling the light output of the luminaire based on the optical properties measured by the sensor unit, wherein the optical properties at least comprise specular and diffuse reflection.
Dependencies are inferred from the claim text.