Title:
ELECTRO-OPTICAL ELEMENT
Document Type and Number:
WIPO Patent Application WO/2006/137408
Kind Code:
A1
Abstract:
An electro-optical element capable of efficiently increasing a beam deflection and consisting of a simple structure, the element comprising an electro-optical crystal (11) having an electro-optical effect, an electrode pair consisting of an anode (12) and a cathode (13) to generate an electric field within the electro-optical crystal, and a power supply for applying a voltage between the electrode pair so as to generate spatial charge within the electro-optical crystal. The above arrangement can provide a large deflection angle, that is quick in time-wise change and cannot be realized with a conventional electro-optical crystal prism, using a simple structure at a low applied voltage.
Inventors:
NAKAMURA KOUICHIROU (JP)
FUJIURA KAZUO (JP)
IMAI TADAYUKI (JP)
MIYAZU JUN (JP)
FUJIURA KAZUO (JP)
IMAI TADAYUKI (JP)
MIYAZU JUN (JP)
Application Number:
PCT/JP2006/312342
Publication Date:
December 28, 2006
Filing Date:
June 20, 2006
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
NAKAMURA KOUICHIROU (JP)
FUJIURA KAZUO (JP)
IMAI TADAYUKI (JP)
MIYAZU JUN (JP)
NAKAMURA KOUICHIROU (JP)
FUJIURA KAZUO (JP)
IMAI TADAYUKI (JP)
MIYAZU JUN (JP)
International Classes:
G02F1/29; G02F1/03
Foreign References:
| JP2000056344A | 2000-02-25 | |||
| JPS6279418A | 1987-04-11 | |||
| JP2004004194A | 2004-01-08 | |||
| JPS59219726A | 1984-12-11 | |||
| JPH10288798A | 1998-10-27 | |||
| JPH11202271A | 1999-07-30 | |||
| JPH10239717A | 1998-09-11 | |||
| JPH09159950A | 1997-06-20 |
Other References:
TIAN L. ET AL.: "Anomalous electro-optic in Sr0.6Ba0.4Nb2O6 single crystals and its application in two-dimensional laser scanning", APPLIED PHYSICS LETTERS, vol. 83, no. 21, 24 November 2003 (2003-11-24), pages 4375 - 4377, XP001191751
BOKUT B.V. ET AL.: "Space charge in anisotropic conducting media and its electrical detection", TECHNICAL PHYSICS, vol. 39, no. 6, June 1994 (1994-06-01), pages 584 - 586, XP008075072
See also references of EP 1898258A4
P. S. CHEN: "Light Modulation and Beam Deflection with Potassium Tantalate-Niobate Crystals", JOURNAL OF APPLIED PHYSICS, vol. 37, no. 1, 1966
BOKUT B.V. ET AL.: "Space charge in anisotropic conducting media and its electrical detection", TECHNICAL PHYSICS, vol. 39, no. 6, June 1994 (1994-06-01), pages 584 - 586, XP008075072
See also references of EP 1898258A4
P. S. CHEN: "Light Modulation and Beam Deflection with Potassium Tantalate-Niobate Crystals", JOURNAL OF APPLIED PHYSICS, vol. 37, no. 1, 1966
Attorney, Agent or Firm:
Tani, Yoshikazu (Akasaka 2-chome Minato-k, Tokyo 52, JP)
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