Patent ID: 8749606

Claim:
An optical scanning device comprising: an optical element; an optical base, the optical element being positioned on the optical base; a height positioning boss that is provided in at least one of the optical element and the optical base and that positions the optical element with respect to vertical orientation; and a bonding portion provided in the optical base, a longitudinally central portion of the optical element being bonded to the bonding portion, wherein the bonding portion is elastically deformable in an up-down direction, wherein the optical base has an optical base main body and a proximal end portion, the proximal end portion connecting the optical base main body and the bonding portion to each other, the thickness of the proximal end portion being smaller than the thickness of the optical base main body, and wherein a width of a portion where the optical base main body and the proximal end portion are connected to each other, in a top view, is greater than a width of a portion where the bonding portion and the proximal end portion are connected to each other.