Optical elements having color-selective and polarization-selective reflection containing LC pigments, and the production of these elements
AssigneeConsortium fur Elektrochemische Industrie GmbH
InventorsOliver Kratzschmar, Thilo Gebhard, Silvia Ehmann, Franz-Heinrich Kreuzer
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Abstract
Wavelength-selective and polarization-selective optical elements contain pigments embedded in a transparent binder, in which the pigments include at least one three-dimensionally crosslinked substance having a liquid-crystalline structure with a chiral phase.
Claims5
A wavelength-selective and polarization-selective optical element comprising
- a transparent binder containing pigments embedded therein;
- and
- wherein the pigments comprise at least one three-dimensionally crosslinked substance having a liquid-crystalline structure (LC) with a chiral phase;
- and
- wherein refractive index of the transparent binder is equal to that of the LC pigments.
A process for the production of optical components, comprising
- providing a substrate;
- and
- applying pigments containing substance having a liquid-crystalline (LC) structure with a chiral phase in transparent binder systems to said substrate;
- and
- wherein refractive index of the transparent binder is equal to that of the LC pigments.
A process for the production of wavelength-selective and polarization-selective optical components, comprising
- mixing pigments having the properties of color reflection and polarization direction with a suitable transparent binder system;
- and
- polymerizing the transparent binder to produce an optical element containing at least one three-dimensionally crosslinked substance having a liquid-crystalline structure with a chiral phase;
- and
- wherein the refractive index of the transparent binder is equal to that of the liquid-crystalline structure.
In a method of providing a color filter, the improvement which comprises
- utilizing pigments containing at least one three-dimensionally crosslinked substance having a liquid-crystalline structure (LC) with a chiral phase embedded in a transparent binder;
- and
- wherein refractive index of the transparent binder is equal to that of the LC pigments, as said color filter.
In a method of providing a polarizer, the improvement which comprises
- utilizing pigments containing at least one three-dimensionally crosslinked substance having a liquid-crystalline structure (LC) with a chiral phase embedded in a transparent binder;
- and
- wherein refractive index of the transparent binder is equal to that of the LC pigments, as said polarizer.
Dependencies are inferred from the claim text.