Lens frame structure for optical axis adjustment

摘要

A lens frame structure for optical axis adjustment includes a first frame having a central opening and a first reference surface normal to an optical axis, a second frame supporting a lens group to be aligned with the central opening, the second frame having a radial flange which has a second reference surface normal to the optical axis and contacting the first reference surface so that the second frame is movable in a direction normal to the optical axis, and a plurality of cutout portions formed on the radial flange, wherein an adhesive is inserted into each of the plurality of cutout portions to bond the second frame to the first frame.