Patent ID: 8102411

Claim:
An optical scanner comprising: a light source that emits a light beam; a first optical system that guides the light beam; a deflecting unit that receives the light beam from the first optical system and produces a deflected light beam by deflecting the light beam; a second optical system that guides the deflected light beam onto a surface to be scanned; a housing that supports the light source and the deflecting unit; and an intermediate member that includes a first joining surface and a second joining surface, the first joining surface being substantially perpendicular to the second joining surface, wherein the first joining surface is attached to the housing, and the second joining surface is attached to at least one optical element of any one of the first optical system and the second optical system, the second joining surface being attached to the at least one optical element at one end portion of the optical element, and wherein, in a three-dimensional coordinate system in which a first coordinate axis extends in a direction that is parallel to both the first joining surface and the second joining surface, a second range on the first coordinate axis corresponding to the second joining surface includes a center point of a first range on the first coordinate axis corresponding to the first joining surface, and wherein the first range is larger than the second range.