Volume photo-aligned retarder

This invention specifically relates to a birefringent layer, wherein the direction of the optical axis varies along the thickness direction of the layer, comprising (I) (i) a liquid crystal monomer or pre-polymer having polymerisable groups; and (ii) a monomer or oligomer or polymer having photo-ori...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BENECKE, CARSTEN, SEIBERLE, HUBERT, BACHELS, THOMAS
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	This invention specifically relates to a birefringent layer, wherein the direction of the optical axis varies along the thickness direction of the layer, comprising (I) (i) a liquid crystal monomer or pre-polymer having polymerisable groups; and (ii) a monomer or oligomer or polymer having photo-orientable groups, and/or (iii) a liquid crystal monomer or pre-polymer, oligomer or polymer having photo-orientable and polymerisable groups, and (iv) and optionally further components; or (II) (v) a liquid crystal monomer or pre-polymer, oligomer or polymer having photo-orientable and polymerisable groups, and (vi) and optionally further components, in addition, this invention relates to a method for the preparation of the birefringent layer, its uses and optical components thereof.