| 摘要 |
PROBLEM TO BE SOLVED: To provide a scanning optical device capable of simplifying correction to a mold, and accurately scanning a light beam.SOLUTION: A scanning optical device comprises: a holding portion 52; a reflection fixing portion 53 integrally raised on the holding portion 52 and to which a reflecting member 43 is fixed; and a rib 55 connected to the reflection fixing portion 53. The reflection fixing portion 53 includes a necessary precision surface 531 holding a reflection holding portion 43, and connects with the rib 55 on the opposite surface to the necessary precision surface 531, and the rib 55 is formed to be thinner than the wall thickness of the reflection fixing portion 53.SELECTED DRAWING: Figure 7 |
