Composite material comprising a liquid crystal material having a polymer and chirality, a manufacturing method of the composite material, and an optical element using the composite material

摘要

PPROBLEM TO BE SOLVED: To provide a polymer / liquid crystal composite material which is highly transparent and optically isotropic, in spite of having a high liquid crystal material content, and exhibits a largely stable Kerr coefficient in a wide temperature range, to provide a method for producing the same, and to provide an optical element using the same. PSOLUTION: This polymer / liquid crystal composite material is characterized by comprising a polymer and a liquid crystal material, substantially not diffusing light having wavelengths which are not less than those of visible light, being isotropic, when an electric field is not applied to the composite material, and using a liquid crystal having chirality as the liquid crystal. The polymer / liquid crystal composite material, wherein a Kerr coefficient shows ≥1×10SP-9/SPmVSP-2/SP. And the polymer / liquid crystal composite material, wherein a Kerr coefficient shows ≥1×10SP-10/SPmVSP-2/SPand there is a region where a ratio of a Kerr coefficient at a temperature difference of 10°C is ≤1.5. PCOPYRIGHT: (C)2006,JPO&NCIPI