Optical disc apparatus
AssigneeHitachi-LG Data Storage, Inc.
InventorsYoshihiro Fukagawa, Nozomu Harada
Life of this patent
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Abstract
In an optical disc apparatus, a metallic member forming an optical pickup, such as a bottom cover member of the optical pickup, has a protrusion in an integral form on the portion of the metallic member that is opposed to a plane of a flexible printed-wiring board, and the optical pickup is constructed so that when it comes into contact with an opposed face of the flexible printed-wiring board, the optical pickup brings a front end of the protrusion into contact with the opposed face.
Claims11
An optical disc apparatus in which an optical pickup and a circuit board with a signal-processing circuit are interconnected via a flexible printed-wiring board, wherein:
- the optical pickup comprises, in a plane being opposed to the flexible printed-wiring board of a metallic member, a protrusion formed integrally with the metallic member serving as a constituent element of the optical pickup;
- and
- the optical pickup is constructed such that when it comes into contact with an opposed face of the flexible printed-wiring board, the optical pickup brings a front end of the protrusion into contact with the opposed face of the flexible printed-wiring board.
An optical disc apparatus in which an optical pickup and a circuit board with a signal-processing circuit are interconnected via a flexible printed-wiring board, wherein:
- the optical pickup ranges from about 0.5×10−6 m to about 20.0×10−6 m in terms of surface roughness in a plane of a member serving as a constituent element of the optical pickup, the plane being opposed to the flexible printed-wiring board;
- and
- the optical pickup is constructed such that when it comes into contact with an opposed face of the flexible printed-wiring board, the optical pickup brings the plane of the member into contact with the opposed face of the flexible printed-wiring board.
Dependencies are inferred from the claim text.