Optical deflector, optical scanning apparatus, and image forming apparatus

摘要

An optical deflector including a rotary member supported by a bearing shaft and rotatively driven by a motor for deflecting a plurality of laser beams separated from each other in a rotational axis direction of the rotary member is disclosed. The optical deflector includes a polygon mirror having four sides arranged about the rotational axis direction. Each of the four sides is a continuous plane having a plurality of effective reflection areas separated from each other in the rotational axis direction.

主权项

1. An optical deflector, comprising:
a rotary member fixed on a rotation shaft to be rotated; and a polygon mirror mounted on a top of the rotary member; wherein the polygon mirror is fixed to the rotary member at an outer ridge line part of the polygon mirror.