Automotive lamp comprising a LED lighting device
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United States of America Patent
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Jul 18, 2017
Grant Date -
Aug 18, 2016
app pub date -
Oct 24, 2014
filing date -
Oct 24, 2013
priority date (Note) -
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Abstract
An automotive lamp with a lighting device is provided that includes a LED lighting circuit designed to generate a luminous flux on the basis of a driving current, a controlling electrical circuit which provides the driving current on the basis of a reference electrical quantity and of a sensed electrical quantity, and a compensating electrical circuit, which is configured so as to vary the reference electrical quantity by way of a compensation function of the luminous flux predetermined, on the basis of the temperature of the LED lighting circuit. The compensating electrical circuit includes a resistive conditioning electrical device that conditions the compensation function of the luminous flux so as to vary the reference electrical quantity in a predetermined way in response to a change in temperature.
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