| 摘要 |
In an optical scanner, a light beam from a light source device is incident to a deflecting reflecting face of an optical deflector. The light beam reflected on the deflecting reflecting face is deflected by rotating or swinging the deflecting reflecting face and is incident to a reflective image forming element. The light beam is converged as a light spot onto a scanned face by the reflective image forming element to perform an optical scanning operation. The deflecting reflecting face is substantially parallel to a rotating or swinging axis thereof. The light beam from the light source device is incident to the deflecting reflecting face in a state in which this light beam is inclined with respect to an axial perpendicular face perpendicular to the rotating or swinging axis. An optical axis of the reflective image forming element is inclined with respect to the axial perpendicular face such that this optical axis approaches the incident deflected light beam emitted from the deflecting reflecting face. In this optical scanner, a scanning line curve is effectively reduced. |
