LASER LINE UNIT AND LASER MARKING APPARATUS

PROBLEM TO BE SOLVED: To provide a laser line unit and a laser marking apparatus allowing to increase an degree of freedom of the external shape of the laser line unit itself and a degree of freedom of the mounting shape of the laser line unit to an apparatus by allowing adjustment in biaxial direction only by a rod lens holder. SOLUTION: The laser line unit comprises a light source holder 25 holding a semiconductor laser 23, the rod lens 21 allowing laser light emitted from the semiconductor laser 23 to diffuse in only one direction, and a rod lens holder 26 which holds the rod lens 21 and is in contact with the light source holder 25 to be fixed. The contact surface between the light source holder 25 and the rod lens holder 26 is a spherical surface, along which the rod lens holder 26 can move. Through the movement of the rod lens holder 26, the curvature adjustment and inclination adjustment of a laser line can be performed. COPYRIGHT: (C)2006,JPO&NCIPI