| 摘要 |
<p>The present invention relates to a cutting method for reinforced glass plates wherein, when a reinforced glass plate (10), which is provided with a front surface layer (13) and back surface layer (15) having residual compressive stress and an intermediate layer (17) having an internal residual tensile stress, is cut so as to have a prescribed radius of curvature by moving the irradiation region (22) of laser light, the irradiation energy of the laser light (20) per unit irradiation surface area irradiated on the reinforced glass plate (10) becomes larger as the radius of curvature becomes smaller. Thus, reinforced glass plate cutting is possible using laser light without degrading quality.</p> |
