Vehicle headlight

摘要

A vehicle headlight having at least one laser light source (2), of which the laser beam (3) is deflected onto a lighting surface (6) having a light-conversion phosphor via a micromirror (1) that can be pivoted about at least one axis in order to generate a light image on said lighting surface in a scanning manner, which light image can be projected onto a roadway via an optics unit (7). In this headlight at least one photosensor (9) is positioned with respect to the lighting surface (6) having the light-conversion phosphor such that the photosensor detects a secondary laser beam (8) emitted from the lighting surface in predetermined deflection positions of the micromirror (1) and is designed to emit a signal (s).

主权项

1. A vehicle headlight comprising:
at least one laser light source (2); a lighting surface (6) having a light-conversion phosphor; a micromirror (1) that can be pivoted about at least one axis; an optics unit (7); and at least one photosensor (9), wherein a laser beam (3) from the at least one laser light source (2) will be deflected onto the lighting surface (6) via the micromirror (1) pivoting in a scanning manner to generate on the lighting surface (6) a light image which can be projected onto a roadway via the optics unit (7), and wherein the at least one photosensor (9) is positioned with respect to the lighting surface (6) to detect a secondary laser beam (8) emitted from the lighting surface in predetermined deflection positions of the micromirror (1), which deflection positions correspond to a deflection angle (φ) and is designed to emit a signal (s), which signal (s) serves as a synchronisation signal for a laser modulation.