| 摘要 |
This invention is concerning a multibeam exposure scanning method and apparatus, and a method of manufacturing a printing plate. The problem to be solved is that angular small convex points are to be stably formed through multibeam exposure. The above problem is to be solved by a multibeam exposure scanning method for engraving the surface of a recording medium by simultaneously emitting beams to expose and scan the same scanning line two or more times. The multibeam exposure scanning method includes: exposing a first region with a first amount of light and exposing a second region with a second amount of light in a single scanning operation, the first region being adjacent to a target planar shape to be left on the exposure surface of the recording medium, the second region surrounding the first region; and, in at least one of a second exposure and scanning operation and succeeding exposure and scanning operations, exposing and scanning the second region with a larger amount of light than the amount of light used in the first exposure and scanning operation. |
