Patent ID: 8307381

Claim:
An optical pickup device having at least an optical part module and an optical pickup case to which the optical part module is adhesively fixed by an adhesive, in which a bonding surface of the optical part module to the optical pickup case is disposed at least at two positions, each on lateral surfaces of the optical part module putting an optical axis of the optical part module therebetween, a concave portion or a convex portion is formed to the bonding surface of at least one of the optical part module and the optical pickup case, and a bonding distance L at the lateral surface between the optical part module and the optical pickup case is within a range of: 40 μm<L<950 μm; wherein a heat dissipator is disposed to a transition portion from the front surface to the lateral surface and to a portion other than the bonding surface of the lateral surface of the optical part module and between the optical part module and the optical pickup case, and a concave portion or a convex portion is formed to a surface of the heat dissipator to at least one of the optical part module and the optical pickup case.