Optical pick up including protrusion portion to position optical element

摘要

An optical pickup, including a housing, and an optical element mounted on the housing, wherein the optical element is fixed onto wall surfaces of the housing via adhesive agents on both sides of a certain single surface of the optical element, the optical pickup, further including a protrusion portion on the other side of a surface with the optical element positioned therebetween, the surface being orthogonal to the wall surfaces of the housing, the protrusion portion protruding from the housing, the front end of the protrusion portion protruding than the adhesive agents in a direction away from the wall surfaces.

主权项

1. An optical pickup, comprising:
a housing; an optical element mounted on said housing by fixing onto wall surfaces of said housing via adhesive agents on both ends of a certain single surface of said optical element; an objective lens for focusing light onto an optical disc to be mounted; and a protrusion portion protruding orthogonal from said wall surfaces toward the optical element, the protrusion portion being positioned between said wall surfaces; wherein, the objective lens for focusing light to the optical disc from an upper side thereof, and a reverse side is defined as a lower side thereof; convex portions in contact with a lower side surface of the optical element are formed on a bottom surface of the housing which is orthogonal to said wall surfaces of the housing; the protrusion portion protruding from the housing is disposed at a position which is opposed to an upper surface of the optical element; and a front end of said protrusion portion protrudes more than said adhesive agents in a direction away from said wall surfaces.