发明名称 |
Polarization independent phase modulator |
摘要 |
The present invention provides a polarization independent phase modulator for light comprising a layer of chiral liquid crystal mixture that has a low enough pitch to provide polarization independence of the effective refractive index for visible light. The liquid crystal mixture is controllable between a helix oriented ground state and a tilted state induced by the application of an electric field across the liquid crystal mixture layer. The liquid crystal mixture is preferably dispersed in a network material which ensures that the helix-oriented ground state is resumed when removing the electric field.
|
申请公布号 |
US2007183020(A1) |
申请公布日期 |
2007.08.09 |
申请号 |
US20040576392 |
申请日期 |
2004.10.11 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
HIKMET RIFAT A.M. |
分类号 |
G02F1/01;G02F1/1334;G02F1/137;G02F1/139 |
主分类号 |
G02F1/01 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|