EP 1456712 A2 20040915 - DEVICE FOR CONTROLLING POLARIZATION OF A SIGNAL CARRIED IN THE FORM OF A LIGHT BEAM, AND CORRESPONDING APPLICATION
Title (en)
DEVICE FOR CONTROLLING POLARIZATION OF A SIGNAL CARRIED IN THE FORM OF A LIGHT BEAM, AND CORRESPONDING APPLICATION
Title (de)
EINRICHTUNG ZUR STEUERUNG DER POLARISATION EINES IN FORM EINES LICHTSTRAHLS GEFÜHRTEN SIGNALS UND ENTSPRECHENDE ANWENDUNG
Title (fr)
DISPOSITIF DE CONTROLE DE LA POLARISATION D'UN SIGNAL VEHICULE SOUS LA FORME D'UN FAISCEAU LUMINEUX, ET APPLICATION CORRESPONDANTE
Publication
Application
Priority
- FR 0204422 W 20021217
- FR 0116341 A 20011217
Abstract (en)
[origin: WO03052496A2] The invention concerns a device for controlling polarization of a signal carried in the form of a light beam. The invention is characterized in that said device comprises: a cell consisting of two substantially mutually parallel support plates and between which is confined a content comprising a polymer wherein are dispersed liquid crystal droplets; means for applying to at least part of the cell content, an electric field substantially perpendicular to the light beam propagation direction such that, depending on whether the electric field is applied or not, at least part of the cell content constitutes a birefringent or isotropic medium respectively.
IPC 1-7
IPC 8 full level
G02F 1/01 (2006.01); G02F 1/061 (2006.01); G02F 1/1334 (2006.01)
CPC (source: EP US)
G02F 1/0136 (2013.01 - EP US)
Citation (search report)
See references of WO 03052496A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
WO 03052496 A2 20030626; WO 03052496 A3 20031211; CN 1605040 A 20050406; EP 1456712 A2 20040915; FR 2833720 A1 20030620; FR 2833720 B1 20040312; JP 2005513528 A 20050512; US 2005007519 A1 20050113
DOCDB simple family (application)
FR 0204422 W 20021217; CN 02825152 A 20021217; EP 02804941 A 20021217; FR 0116341 A 20011217; JP 2003553325 A 20021217; US 49921304 A 20040614