Processing device by using laser direct imaging technology

The utility model relates to a processing device by using laser direct imaging technology. A beam of laser transmitted by an ultrashort pulse laser device enters a first beam expander, the laser beam is expanded by the first beam expander, wherein the expanding times of the first beam expander is adjustable, and then the laser beam enters into a digital light processing (DLP) chip through a first 45-degree half reflecting mirror. The DLP chip is controlled by a computer aided manufacturing (CAM) work station, the CAM work station outputs images directly, the images enter the DLP chip, and the laser beam is modulated by a digital micro mirror device (DMD) system. The modulated laser beam is reflected by a second 45-degree half reflecting mirror, then the laser beam is expanded or focused through a second beam expander, wherein the expanding times of the second beam expander is adjustable, and the laser beam is focused on a printed circuit board under the action of the second beam expander. Before processing, a charge coupled device (CCD) sensor senses the position of a sample and calibrates the position of the sample with an automatic focusing (AF) unit, and thus a laser path is calibrated. The processing device by using the laser direct imaging technology has the advantages of being simple to operate, good in quality and high in processing efficiency. Further, samples processed through the processing device is high in fineness.