| 摘要 |
<p>A dual infrared beam raster scanning system (10) has overfilled facets (36) on the rotating polygon mirror (38) and a double pass through a two cylindrical lens element f-theta lens group (44). The raster scanning system (10) has an aspheric collimator lens (22), an aperture (24) and a four lens element cylindrical lens group (26) in the pre-polygon optics, and a two cylindrical lens element f-theta lens group (44) and a cylindrical mirror (54) and a cylindrical wobble correction mirror (56) in the post-polygon mirror optics.</p> |
