摘要：

The invention belongs to the class of thermostable and lightfast dichroic polarizers made using thin films of dichroic organic substances, in particular, the organic dyes in which molecules of a dichroic organic substance are ordered in a crystalline lattice and which are deposited onto either a rigid or a flexible substrate surface. The technical result consists in the fact of widening the spectral range of the polarizer operation and in simultaneous improvement of the polarizer's polarizing characteristics. The proposed dichroic polarizer is manufactured using the film which at least partially has the crystal structure and which contains at least one dichroic organic substance with the planar-structure molecules (or molecule fragments). The dichroic substance is selected such as to have at least one maximum in each of the following regions of the absorption spectrum curve: 400-700 nm and/or 200-400 nm, and 0.7-13 microns. The film order parameter S corresponding to at least one maximum in the 0.7-13 micron region of the absorption spectrum curve is no less than 0.88. This parameter is calculated from the expression <MATH> where D ORTHOGONAL and D11 are the optical densities measured in the polarized light when, correspondingly, the polarizer's polarization axis is perpendicular and parallel, respectively, to the polarization plane of the spectrometer electromagnetic radiation.

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