Laser attachment device and optical pick-up device using the same
AssigneesSanyo Electric Co., Ltd., Sanyo Optec Design Co., Ltd.
InventorsRyoichi Kawasaki, Mitsuhiro Hashimoto
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Abstract
A laser attachment device of the present invention is formed of a LD package and a LD holder housing it. A first inner wall of the LD holder to come into contact with a side surface of the LD package is an inclined surface. This allows the facing direction of the LD package to be corrected by the first inner wall being the inclined surface, even when a laser beam emitted from a light emitting chip housed in the LD holder is inclined with respect to an optical axis. Thus, the traveling direction of the laser beam is corrected to the optical axis side.
Claims6
A laser attachment device which is installed in a housing of an optical pick-up device and which emits a laser beam, the laser attachment device comprising:
- a LD package having a light emitting chip built therein for emitting the laser beam, the LD package having a first side surface and a second side surface extending in a direction in which the laser beam is emitted;
- and
- a LD holder which has a shape of a frame body in which the LD package is housed and which has a first inner wall and a second inner wall inclined with respect to an optical axis of the optical pick-up device, wherein
- the first side surface of the LD package is brought into contact with any one of the first inner wall and the second inner wall of the LD holder, and
- the second side surface of the LD package is spaced away from the other one of the first inner wall and the second inner wall of the LD holder.
Dependencies are inferred from the claim text.