Sanyo Electric Co., Ltd.

Hiroyuki Negishi

Minoru Sato

Sadao Iizuka

Hideyuki Saikawa

Hisayuki Ito

An optical pickup device comprises a light emitting element which emits laser light, a photodetector which monitors a state of the laser light emitted from the light emitting element and applies feedback to a control of the light emitting element, and a reflect mirror which allows a portion of the laser light emitted from the light emitting element to be irradiated to the photodetector, wherein a rough surface portion is provided on a surface of the reflect mirror to avoid an erroneous operation of the optical pickup device.

Optical pickup device

A laser driving integrated circuit () to drive a laser element is mounted in an optical housing, and a wiring pattern of an actuator line () for supplying an actuator () with drive signals to drive the actuator () through a relay circuit board and a wiring pattern of a laser drive line () for supplying drive signals from the laser driving integrated circuit () to the laser element are formed on the same flexible wiring board (), and, when the flexible wiring board () is folded, a shielding part () connected to the ground line is arranged to intervene between the overlapping wiring patterns of the actuator line () and the laser drive line () of the flexible wiring board ().

Growing community of inventors

Ora-gun, Japan

Hiroyuki Negishi