LASER PRINTING SYSTEM Russian patent published in 2018 - IPC B41J2/45 

FIELD: laser engineering.

SUBSTANCE: invention describes laser printing system (100) for illuminating an object moving relative to a laser module of laser printing system (100) in working plane (180) and a corresponding laser printing method. Laser module comprises at least two laser arrays (110) of semiconductor lasers (115) and at least one optical element (170). Optical element (170) is adapted to image laser light emitted by laser arrays (110), such that laser light of semiconductor lasers (115) of one laser array (110) is imaged to one pixel in working plane (180) of laser printing system (100) and an area element of the pixel is illuminated by means of at least two semiconductor lasers (115). Optical element does not project or focus laser light of each single semiconductor laser (115) to working plane (180), but images the whole laser arrays to the working plane.

EFFECT: overlap of the laser light emitted by semiconductor lasers (115) may improve the homogeneity of illumination or energy input and the reliability regarding malfunctions of single semiconductor lasers (115).

15 cl, 17 dwg