Patent ID: 7141827
Filing Date: 2006-11-28
Classification: B82Y,G11B,H01S

Abstract:
1. An optical disc apparatus at least recording or reproducing information on/from plural kinds of optical discs using a semiconductor light emitting device as a light source, wherein the semiconductor light emitting device includes at least a pair of light emitting elements having a main emitting plane in the same direction on a main surface of a common substrate in adjacent position, comprising: a substrate in which side surfaces thereof incline at a certain angle (off angle) in a clockwise direction with respect to a crystal axis direction, viewed from a main emitting plane side; a first light emitting element having a trapezoidal cross section in which the left side of the opposite side surfaces is gentler than the right side thereof when viewed from a main emitting plane side; and a second light emitting element which is a counterpart of the first light emitting element is formed on the left side of the first light emitting element when viewed from a main emitting plane side.