| 摘要 |
<p>An optical scanning system including a light source (11) for emitting light beams, a beam deflection unit (13, 14) for deflecting the light beams to sequentially land the light beams along a predetermined scan line (15), and a light source driving unit (20) for driving the light source to land the light beams on pixel points set at equal intervals along the scan line according to image information by controlling the emission intervals between the light beams and the exposure periods of the respective light beams, and to adjust the size of spots formed on the pixel points by the light beams according to gray scale values included in the image information. Therefore, in the optical scanning system, gray scale information can be expressed by forming the light beam spots of an adjusted size on the pixel points set at equal intervals along the scan line. <IMAGE></p> |
