LINEAR POLARIZER BUILT AROUND NEMATIC LIQUID CRYSTAL Russian patent published in 2001 - IPC

FIELD: optical devices. SUBSTANCE: polarizer has two optical elements of transparent isotropic material and uniformly oriented liquid-crystal layer placed between their inner effective surfaces, refractive index of its ordinary beam being lower than that of each of optical elements. Uniformly oriented liquid-crystal layer is placed directly between inner effective surfaces of optical elements and is composed of liquid crystals based on 1-n-alkyloxy-4- cinnamic acids and 4-(trans-4-n-alkyl-cyclohexyl) benzonitriles. EFFECT: enhanced degree of polarization. 1 dwg