| 摘要 |
PROBLEM TO BE SOLVED: To provide a light deflecting element capable of deflecting a laser beam having a large beam diameter and making the laser beam scan at high speed.SOLUTION: Electro-optic crystal materials 1a-1e are arranged in a plate thickness direction of the same, electrodes 2b-2e are interposed between the respective electro-optic crystal materials, and an electrode 2a is provided on a top surface and an electrode 2f is provided on a bottom surface. Each of the electro-optic crystal materials 1a-1e is provided with a first area of which a crystal optical axis faces upward and a second area of which a crystal optical axis faces downward, and the second area of an electro-optic crystal material of a lower layer is arranged directly under the first area of an electro-optic crystal material of an upper layer. Electric potential E is applied to the electrodes 2a, 2c, 2e and ground potential is applied to the electrodes 2b, 2d, 2f. |
