| 发明名称 | Variable focusing lens and microscope | ||
| 摘要 | A variable focusing lens is provided that can change the focal length at a high speed. The variable focusing lens includes: a single crystal electrooptic material having inversion symmetry; a first anode formed on a first surface of the electrooptic material; a second cathode provided to have an interval to the first anode; and a first cathode and a second anode that are formed on a second surface opposed to the first surface and that are formed at positions opposed to the first anode and the second cathode. An optical axis is set so that, when light enters through a third face orthogonal to the first surface, light exists through a fourth surface opposed to the third face. A voltage applied between the first and the second pair of electrodes is changed to thereby change the focal point of light emitted from the fourth surface of the electrooptic material. | ||
| 申请公布号 | US8773749(B2) | 申请公布日期 | 2014.07.08 |
| 申请号 | US201013375212 | 申请日期 | 2010.06.11 |
| 申请人 | Nippon Telegraph and Telephone Corporation | 发明人 | Imai Tadayuki;Sasaura Masahiro;Miyazu Jun;Yagi Shogo;Toyoda Seiji |
| 分类号 | G02F1/00;G02F1/29;G02F1/07;G02F1/03 | 主分类号 | G02F1/00 |
| 代理机构 | Workman Nydegger | 代理人 | Workman Nydegger |
| 主权项 | 1. A variable focusing lens, comprising: a single crystal electrooptic material having inversion symmetry; a first anode formed on a first surface of the electrooptic material; a first cathode that is formed on a second surface opposed to the first surface and that is formed at a position opposed to the first anode; a second cathode that is formed on the first surface and that is provided to have an interval to the first anode; and a second anode that is formed on the second surface, that is provided to be opposed to the second cathode, and that is provided to have an interval to the first cathode,wherein: an optical axis is set so that, when light enters through a third face orthogonal to the first surface, the light passes through a first pair of electrodes composed of the first anode and the first cathode and subsequently passes through a second pair of electrodes composed of the second anode and the second cathode to subsequently exit through a fourth surface opposed to the third face, and a voltage applied between the first pair of electrodes and the second pair of electrodes is changed to thereby change the focal point of light emitted from the fourth surface of the electrooptic material. | ||
| 地址 | Tokyo JP | ||