Lumileds Holding B.v.

Maciej Dawid Pakulski

Lukas Kuepper

Jean-Sebastien Straetmans

Jacek Kowalski

An incandescent lamp for a vehicle headlight comprising a transparent vessel that encloses at least one filament and the vessel is at least partly covered with a coating. The coating comprises at least one pigment, which is arranged such that light emitted by the at least one filament and traversing the coating is transformed to transformed light. The transformed light is characterized by a chromaticity according to the CIE 1931 xy-chromaticity with y being in between the Planckian locus and y=0.5*x+0.205 and 0.36&#x3c;x&#x3c;0.42, and wherein the at least one pigment comprises a mixture of Co&#x2014;Al oxide and Co&#x2014;Al&#x2014;Cr oxide, the mixture being characterized by a ratio of a concentration in mass percentage Cm(Co&#x2014;Al oxide) of Co&#x2014;Al oxide and a concentration in mass percentage Cm(Co&#x2014;Al&#x2014;Cr oxide) of Co&#x2014;Al&#x2014;Cr oxide in the coating of 90/10&#x2265;Cm(Co&#x2014;Al oxide)/Cm(Co&#x2014;Al&#x2014;Cr oxide)&#x2265;30/70.

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Aachen, Germany

Maciej Dawid Pakulski