Patent ID: 8355309
Filing Date: 2013-01-15
Classification: G11B

Abstract:
1. An optical pickup device comprising: a first optical system including: a second optical system including: wherein the first optical system and the second optical system are arranged such that a direction in which the light from the first light source enters the first mirror member is substantially perpendicular to a direction in which the light from the second light source enters the second mirror member, the first mirror member and the second mirror member each is a plate-shaped member that is substantially rectangular as seen from a reflective surface, a cut surface is formed in one of the first mirror member and the second mirror member by cutting a side surface of the plate-shaped member obliquely with respect to the reflective surface, and the cut surface and one side surface of the first mirror member or the second mirror member in which a cut surface is not formed are arranged substantially parallel to and opposite each other, and the first mirror member and the second mirror member are arranged close to each other.