| 摘要 |
PROBLEM TO BE SOLVED: To improve workability by forming a spot in part of a fan-shaped laser beam and facilitating the alignment of a laser line formed by the laser beam in a line laser apparatus. SOLUTION: The line laser apparatus is provided with a light source 33 for emitting the laser beam 37, a light emitting part 29 having optical means 31 and 32 for emitting the laser beam in a fan shape from the light source, an optical member 27 for forming spot light in the fan-shaped laser beam and at part of the fan-shaped laser beam, and a support means 26 for supporting the optical member in such a way that the spot light formed in the fan-shaped laser beam can be moved. COPYRIGHT: (C)2003,JPO
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