NOVELTY - Flexible optically transparent nano structured polymer material high level of the adhesive to the surface of the optical devices to cover an optical devices forming an encapsulating layer over the optical device for protecting the optical device from humidity and UV undesired lights comprises derivatives of polyurethanes synthesized on the basis of the mixture of olyglycoladipates having different compositions, and molecular weight, and of aliphatic diisocyanates multifunctional hydroxyl based a hardening agent; antistatic additives; and low-molecular esters.    USE - The polymer is useful for protecting the optical device from humidity and UV undesired lights, as components for synthesis of forpolymer or oligomer as the polyethyleneglycoladipinat the compounds of polyethyleneglycoladipinat of molecular weight 800-2000 are used and also as aliphatic diisocyanates is used hexamethylendiisocyanate, and as a hardening agent from the class of bi-and trifunctional hydroxyl compounds of the mixture of trimethylpropane and glycerin is used (all claimed).    ADVANTAGE - The polymer has increased photovoltaic cell efficiency and lower cost materials.    DETAILED DESCRIPTION - Flexible optically transparent nano structured polymer material high level of the adhesive to the surface of the optical devices to cover an optical devices forming an encapsulating layer over the optical device for protecting the optical device from humidity and UV undesired lights, where this polymer material is based on the composition comprising: derivatives of polyurethanes synthesized on the basis of the mixture of olyglycoladipates having different compositions, and molecular weight, and of aliphatic diisocyanates multifunctional hydroxyl based a hardening agent; antistatic additives; and low-molecular esters having a general formula of: R-C (O)-OR', where R is at least one of CH3, C2H5 and R' is at least one of CH3, C2H5, C4H9, C5H11 acting as modifiers having where modifiers have an active chemical affinity to the initial components of the polymer compositions connected by intermolecular hydrogenous bonds both with the basis of compound and with hardeners, forming in the composition nano domain and micro-domains and clusters of various dimensions and configurations located in a predetermined order in the polymer material where the nano domail and micro-domains and clusters functionally form micro lenses to concentration of light on the optical device and strengthen wave of optical radiation. An INDEPENDENT CLAIM is a photovoltaic module comprising: a cell unit having a plurality of photovoltaic cells connected in series-parallel relationship relative one another, a substrate with insulating layer facing the cell unit, the substrate connected to the photovoltaic cells by an adhesive material connected to back surface of the photovoltaic cells, and the photovoltaic cells having a front surface exposed to with the incident light-including an encapsulating layer of the flexible optically transparent nano structured polymer material for protecting the photovoltaic cells from humidity and UV undesired lights, the flexible optically transparent nano structured polymer material based on the composition comprising: derivatives of polyurethanes synthesized on the basis of the mixture of polyglycoladipates having different compositions, and molecular weight, and aliphatic diisocyanates, multifunctional hydroxyl based a hardening agent, antistatic additives, and the modifier presenting low-molecular esters having a general formula of: R-C(O)-OR', where R is at least one of CH3, C2H5 and R' is at least one of CH3, C2H5, C4H9, C5H11 acting as modifiers having an active chemical affinity to the initial components of the polymer compositions connected by intermolecular hydrogenous bonds both with the basis of compound and with hardeners forming in the composition nano particles and micro-domains and clusters of various dimensions and configurations located in a predetermined order in the polymer material where the nano particles and micro-domains and clusters functionally form micro lenses to concentration of light on the optical device and strengthen wave of optical radiation.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the flexible optically transparent nano structured polymer.    Insulating surface (101)    Adhesive layer (102)    Photovoltaic converters (103)    Transparent conductive oxide layer (104)    Highly transparent flexible protective cover layer (105)