Apparatus and method for producing an improved laser beam
A technology of laser beams and optical components, used in lasers, laser welding equipment, laser parts and other directions, can solve the problems of small beam area, non-uniform power distribution, insufficient processing rate, etc., to improve surface quality, improve power distribution, The effect of improving the surface quality
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[0030] In a preferred embodiment, as attached Figure 2C As shown, the laser beam of the present invention has a rectangular cross-section 20 with a width dimension 22 and a length dimension 24 . In preferred embodiments, the width dimension of said bundle is at least 8 times the length dimension of said bundle. The ratio of the width dimension to the length dimension measured at the position of half the maximum intensity is hereinafter referred to as the "aspect ratio".
[0031] as attached Figure 2A As shown in , the laser beam of the present invention includes such a power distribution on the width dimension, that is, the power distribution is substantially constant in the central region 10, increases in the outer region 12, and substantially steps in the end regions 14 of its width dimension. function way down. The ratio of the intensity or magnitude of the power distribution in the outer zone to the intensity or magnitude in the central zone is greater than or equal t...
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