Title:
可変焦点レンズおよび顕微鏡
Document Type and Number:
Japanese Patent JP5406292
Kind Code:
B2
Abstract:
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.
Inventors:
Kinyuki Imai
Masahiro Sasaura
Jun Miyazu
Takeshi Yagi
Seiji Toyota
Masahiro Sasaura
Jun Miyazu
Takeshi Yagi
Seiji Toyota
Application Number:
JP2011518317A
Publication Date:
February 05, 2014
Filing Date:
June 11, 2010
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
G02F1/29; G02B3/14; G02B21/00
Domestic Patent References:
| JP2007310104A | 2007-11-29 |
Foreign References:
| WO2006137408A1 | 2006-12-28 | |||
| US5272561A | 1993-12-21 | |||
| US4181399A | 1980-01-01 |
Attorney, Agent or Firm:
Patent Business Corporation Tani/Abe Patent Office