Patent ID: 8687295
Filing Date: 2014-04-01
Classification: G02B

Abstract:
1. An apparatus for adjusting an optical element, the apparatus comprising: at least one optical element for passing light; an adjustment frame coupled to an edge of the optical element; a lens barrel supporting a rear side of the adjustment frame; an elastic support unit arranged between the adjustment frame and the lens barrel and providing an elastic force to the adjustment frame; and at least one axial adjustment unit coupled to the lens barrel by penetrating the adjustment frame and the elastic support unit and adjusting a position of the adjustment frame in an axial direction, wherein the axial adjustment unit comprises a screw surface on an outer circumferential surface thereof, the adjustment frame comprises a screw hole to which the axial adjustment unit is screw-coupled, and the axial adjustment unit adjusts a distance between the adjustment frame and the lens barrel by rotating with respect to the adjustment frame, and wherein the lens barrel comprises a step portion inwardly protruding to support the elastic support unit and extending along a circumferential direction and the step portion of the lens barrel comprise a screw hole to which the axial adjustment unit is screw-coupled.