Patent ID: 9128291
Filing Date: 2015-09-08
Classification: G02B,G03G

Abstract:
1. An optical scanning apparatus, comprising: an optical deflector having a polygon mirror reflecting a light flux emitted from a light source to carry out scanning, a drive unit rotating the polygon mirror about a rotation axis, and a board supporting the drive unit and the polygon mirror; a housing to which the board is fixed; two protruding portions protruding from the housing, wherein each of the two protruding portions has a hole through which a respective one of two screws fixing the board to the housing is inserted and a bearing surface which is provided at a position around the hole and which supports the board; and an abutment portion protruding from the housing, wherein the abutment portion contacts with and supports the board at a position different from the bearing surface, wherein the board is fixed to the housing by only the two screws.