It discloses imaging apparatus for projecting individually controllable laser beam movable imaging surface to the reference X direction with respect to the imaging apparatus. Imaging device comprises a plurality of semiconductor chips, each of these semiconductor chips, having M rows and N columns plurality of individually controllable of which are arranged in a two-dimensional array is a laser beam generating device. The elements in each row have a uniform spacing A _r, also elements in each column having a uniform spacing a _c. Chip installed in the support, this equipped, each chip pair which are adjacent to each other in the reference Y-direction perpendicular to the X direction, when the offset from one another in the X direction, also continuously operated, with two chips in each pair generated laser beam, extending in the X direction, also carried out so as to trace a set of parallel lines spaced substantially uniformly in the Y direction in the imaging plane. Chips arranged in a row at least one pair on a support, also chip in this line pairs is the apex of the corresponding element congruent equilateral triangle in any group of three chips adjacent to each other in the X and Y directions shall be aligned so as to be located, the imaging apparatus further includes a plurality of lens systems, each lens system spaced between the laser beam a laser beam of any laser device in a single chip corresponding to each It acts so as to focus on the imaging surface without amount varied. Each lens system, a single gradient index (GRIN: gradient index) rods, or may have a plurality of GRIN rod was serially arranged with one another.
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