IMAGE FORMING DEVICE Russian patent published in 2019 - IPC G03G15/04 B41J2/45 H01S5/40 

FIELD: physics.

SUBSTANCE: invention relates to image forming means. Image forming device is designed to project separately controlled laser beams on the image forming surface which is movable relative to the device in a given direction along the X axis. Device comprises a plurality of semiconductor microcircuits, each having a plurality of separately controlled, laser-emitting elements arranged in a two-dimensional matrix with M rows and N columns. Elements in each row are arranged at equal intervals A_r, and elements in each column are arranged at equal intervals a_c. Microchips are installed on support so that each pair of microcircuits, which are located next to each other in a given direction along axis Y, which is transverse to direction along axis X, are shifted relative to each other in direction along axis X, and, with continuous activation, emitted laser beams of two microcircuits of said pair are carried out on image forming surface a set of parallel lines, which pass in direction along axis X and located substantially at equal intervals in direction along axis Y. Microchips are located in at least one pair rows on the support and are aligned in said pair or pairs of lines such that corresponding elements in any group of three adjacent chips in directions along axes X and Y are located on tops of congruent equilateral triangles, and image forming device also comprises plurality of lens systems, each of which is intended for focusing of laser beams of all laser elements of corresponding microcircuit on the image forming surface without changing the separation between the laser beams. Each lens system comprises at least one rod with a gradient refraction index (GRIN).

EFFECT: technical result is enabling increase in radiation power.

12 cl, 9 dwg