Laser processing apparatus
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsKeiji Narumi, Mitsuoki Hishida
Life of this patent
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Abstract
A laser processing apparatus includes first and second laser oscillators that emit first and second laser lights (LB1), (LB2) having wavelengths different from each other, an optical fiber that guides first and second laser lights (LB1), (LB2), and laser head (50) configured to condense first and second laser lights (LB1), (LB2), respectively, at predetermined positions of a workpiece. Laser head (50) includes optical path difference generation unit (70) provided inside second housing (51). Optical path difference generation unit (70) is configured to make an optical path length of first laser light (LB1) inside second housing (51) longer than an optical path length of second laser light (LB2).
Claims9
A laser processing apparatus comprising at least:
- a first laser oscillator that emits first laser light having a first wavelength;
- a second laser oscillator that emits second laser light having a second wavelength;
- an optical fiber that receives and guides the first laser light and the second laser light;
- and
- a laser head connected to the optical fiber and configured to condense the first laser light and the second laser light at predetermined positions of a workpiece, respectively, wherein
- the first wavelength is shorter than the second wavelength,
- the laser head includes at least a housing, and an optical path difference generation unit provided inside the housing, and
- the optical path difference generation unit is configured to make an optical path length of the first laser light inside the housing longer than an optical path length of the second laser light.
Dependencies are inferred from the claim text.