公开(公告)号：US20020090188A1

公开(公告)日：2002-07-11

申请号：US09860722

申请日：2001-05-18

Applicant: Optiva, Inc.

Inventor： Pavel I. Lazarev ,  Michael V. Paukshto

IPC: G02B006/22

CPC classification number: G02B6/03694 ,  G02B6/02385 ,  G02B6/024 ,  G02B6/03622

Abstract: Optical waveguides of the type which include a light-transmitting core and a cladding layer in said core. The optical waveguide can be planar or cylindrical such as an optical fiber. The optical waveguide is provided with an additional coating of highly biaxial or uniaxial crystalline material with different refraction indices in different directions.

Abstract translation: 在所述芯中包括透光芯和包层的类型的光波导。 光波导可以是平面的或圆柱形的，例如光纤。 光波导具有在不同方向上具有不同折射率的高双轴或单轴结晶材料的附加涂层。

公开(公告)号：US20040036821A1

公开(公告)日：2004-02-26

申请号：US10394556

申请日：2003-03-21

Applicant: OPTIVA, INC.

Inventor： Michael V. Paukshto ,  Louis D. Silverstein

IPC: G02F001/1347

CPC classification number: G02F1/13471 ,  G02F2001/1398

Abstract: A liquid crystal shutter is provided comprising at least two liquid crystal cells and at least three polarizers. Each of the liquid crystal cells contains a plurality of layers between two substrates and is disposed between two adjacent polarizers. The adjacent two liquid crystal cells have substantially equal absolute values and opposite directions of twist angles. The liquid crystal shutter of the invention substantially increases the viewing angle and the contrast ratio at large viewing angles, provides a symmetrical dependence of the contrast ratio on the viewing angle, and decreases the switching time as well as the driving voltages. The shutter provides substantially improved angular characteristics, high contrast ratio, good transparency in the light state, and a fast switching time.

Abstract translation: 提供了包括至少两个液晶单元和至少三个偏振器的液晶快门。 每个液晶单元在两个基板之间包含多个层，并且设置在两个相邻的偏振器之间。 相邻的两个液晶单元具有基本相等的绝对值和相反的扭转方向。 本发明的液晶快门在大视角下显着增加了视角和对比度，提供了对比度对视角的对称关系，并且减小了切换时间以及驱动电压。 快门提供显着改善的角度特性，高对比度，光状态下的良好透明度和快速切换时间。

公开(公告)号：US20030161022A1

公开(公告)日：2003-08-28

申请号：US10295376

申请日：2002-11-15

Applicant: OPTIVA, INC.

Inventor： Pavel I. Lazarev ,  Michael V. Paukshto ,  Vladimir Sulimov

IPC: G02F001/03 ,  G02F001/07

CPC classification number: G02F1/035 ,  G02F1/0118 ,  G02F1/0356 ,  G02F1/065 ,  G02F1/1326 ,  G02F1/3131 ,  G02F1/3132 ,  G02F2201/15 ,  G02F2201/302 ,  G02F2203/026

Abstract: An electrooptical device is provided comprising at least one substrate, at least one pair of electrodes and at least one layer of an electrooptical material. The electrooptical material represents an optically anisotropic thin crystal film and contains molecules having aromatic rings and possessing a lattice with an interplanar spacing (Bragg's reflection) of 3.4null0.2 {acute over (null)} along one of optical axes. The electrooptical material has anisotropic refractive indices and/or anisotropic absorption coefficients that are depended on an electric field strength.

Abstract translation: 提供了一种电光装置，其包括至少一个衬底，至少一对电极和至少一层电光材料层。 电光材料表示光学各向异性薄膜，并且含有具有芳香环并具有3.4±0.2的平面间隔（布拉格反射）的晶格的分子（沿着光轴沿着一个光电光学材料具有各向异性折射率 和/或取决于电场强度的各向异性吸收系数。