IMAGING HEAD UNIT FOR PERFORMING RELATIVE MOVEMENT TO RESPECTIVE IMAGING SURFACE, IMAGING DEVICE HAVING THE SAME, AND IMAGING METHOD USING THE SAME

摘要

PURPOSE: An imaging head unit for performing a relative movement to a respective imaging surface, an imaging device having the same, and an imaging method using the same are provided to correct for scale factor differences of imaging heads in a scanning direction and implement a scale factor conversion process over the scanning direction. CONSTITUTION: In each row, the respective exposure heads which are arranged in a line, are installed to be offset by a predetermined interval in the head arrangement direction so as the band-form exposed regions(170) partially overlap with respective neighboring the exposed regions(170). A portion between the exposure area(16811) and the exposure area(16812) of the first row is exposed by the exposure area(16821) of the second row and the exposure area(16831) of the third row. At each of the exposure heads(16611-166mn), a digital micromirror device (DMD) is provided to serve as a spatial light modulation element for modulating an incident light beam at each of pixels according to image data. The DMD is connected to an unillustrated controller, which is provided with a data processing section and a mirror driving control section. At the data processing section of this controller, on the basis of inputted image data, control signals are generated for driving control of each micromirror in a region of the DMD at the corresponding exposure head which region is to be controlled.