| 摘要 |
PROBLEM TO BE SOLVED: To precisely adjust the irradiation shape and irradiation position of line light in a laser marker. SOLUTION: The laser marher includes an A block emitting front vertical line light L1 and a B block emitting side perpendicular line light L3. Both the blocks include light projection members comprising light sources emitting light beams for marking, projection lenses converting the light beams into collimated light, and cylindrical lenses 45 converting the collimated light into fan-shaped line light on the same frame 46. The frame 46 includes a plastic deformation part 46a at a joining part between the A block and the B block. By deforming the plastic deformation part 46a, the joining angle between the A block and the B block is varied, and the front vertical line light L1 and the side perpendicular line light L3 perpendicularly cross at a ceiling surface. Thus, the irradiation shape and the irradiation position of the line light can be precisely adjusted. COPYRIGHT: (C)2010,JPO&INPIT
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