Optical scanning apparatus

摘要

An optical scanning apparatus includes a light source configured to emit a light beam, a scanning unit configured to deflect the light beam from the light source so as to scan a photosensitive member, an optical lens configured to guide the light beam scanned by the scanning unit onto the photosensitive member, and a lens supporting unit having a fixing portion configured to fix the optical lens, wherein the lens supporting unit includes a movable supporting portion configured to restrict movement of the optical lens in a direction perpendicular to a scanning direction of the light beam and an optical axis direction of the optical lens, to restrict movement of the optical lens in the optical axis direction, and to support the optical lens movably in the scanning direction.

主权项

1. An optical scanning apparatus comprising:
a light source configured to emit a light beam; a deflecting unit configured to deflect the light beam from the light source such that the light beam scans a photosensitive member; an optical lens configured to guide the light beam deflected by the deflecting unit onto the photosensitive member; a lens supporting unit having a fixing portion to which a first end of the optical lends in a longitudinal direction thereof is fixed, and a movable supporting portion to which a second end of the optical lens in the longitudinal direction thereof is fixed by adhesive, wherein the movable supporting portion is attached to the lens supporting unit such that a movement of the movable supporting portion is restricted in a direction perpendicular to both of the longitudinal direction of the optical lens and an optical axis direction of the optical lens, the movement of the movable supporting portion is restricted in the optical lens, the movement of the movable supporting portion is restricted in the optical axis direction of the optical lens, and the movable supporting portion moves in the longitudinal direction of the optical lens by movement of the second end of the optical lens fixed in the longitudinal direction of the optical lens.