| 摘要 |
<p>The inventive laser cutting device (1) is provided with a collector lens (12) for collecting laser (L) and irradiating friable materials (2); the collector lens (12) is constituted by a cylindrical lens, with upside (12B) provided with a linear trough (12C) at center. The trough (12C) is taken as a diffusion region for the diffusion of the laser (L) the cross sectional shape of which is formed into an approximately U-shaped; and the laser (L) imitating the cross sectional shape to slenderly extend is irradiated on a layout trough (S) made of the fragile materials (2). Consequentially the laser cutting device has a simplified structure and a function of effectively restraining chippings generation in the cutting process of the fragile materials (2).</p> |
