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AssigneePsa Automobiles SA
InventorPhilipp Roeckl
Estimating the term…
The present invention relates to a method for operating a high-resolution projection headlight for a motor vehicle. The high-resolution projection headlight has an active LED pixel matrix light source which comprises an LED matrix monolithically integrated into a semiconductor chip with a plurality of light diode-based pixels and a driver circuit for separately controlling each individual pixel within the LED matrix. A current digital image of a sequence of images is continuously rasterized by means of a graphical controller from graphical data with at least one graphical object (50) and is provided for image reproduction with the projection headlight. A value for a thermal loading of the LED pixel matrix light source is continuously determined. During the rasterizing of a current digital image, surface areas (52) of the graphical objects (50) to be projected are at least partially masked with a masking (60, 61) and modulated, provided that the value for thermal loading exceeds a limit value. The invention also relates to a corresponding projection headlight system for a motor vehicle.
A method for operating a high-resolution projection headlight for a motor vehicle, wherein the high-resolution projection headlight comprises an active LED pixel matrix light source which comprises an LED matrix monolithically integrated into a semiconductor chip with a plurality of light diode-based pixels and a driver circuit for separately controlling each individual pixel within the LED matrix, wherein a current digital image of a sequence of images is continuously rasterized by means of a graphical controller from graphical data with at least one graphical object and is provided for image reproduction with the projection headlamp, wherein a value for a thermal loading of the LED pixel matrix light source is continuously determined, so that, during rasterizing of a current digital image, surface areas of the graphical objects to be projected are at least partially masked with a masking and modulated, provided that the value for the thermal loading exceeds a limit value.
A projection headlight system for a motor vehicle having a graphical controller and at least one high-resolution projection headlight, wherein the high-resolution projection headlight has an active LED pixel matrix light source which comprises an LED matrix monolithically integrated into a semiconductor chip with a plurality of light diode-based pixels and a driver circuit for separately controlling each individual pixel within the LED matrix, wherein the graphical controller has a computing unit and a memory means, wherein graphical data for at least one graphical object to be projected and at least one masking data set are stored in the memory means, and wherein the computing unit is designed to modulate the graphical data with the masking data set in such a way that, during rasterizing of a current digital image for projection with the high-resolution projection headlight, masking occurs at least partially in surface areas of the graphical objects to be projected.
Dependencies are inferred from the claim text.