TECHNOLOGY FOCUS - POLYMERS - Preferred Components: In the Fresnel lens, the transparent substrate comprises glass, polymethylmethacrylate, polycarbonate, polyamide, polyester, or a polycyclic olefin copolymer. The structured polyurethane layer comprises an aliphatic polyurethane. The lens comprises a planar or a non-planar Fresnel lens. The Fresnel lens comprises a positive Fresnel lens, where the Fresnel lens comprises a point focus Fresnel lens or a line-focus Fresnel lens. The Fresnel lens comprises a negative Fresnel lens. The transparent substrate further comprises a surface treatment. The UV stabilizer is selected from a UV Absorber (UVA), a Hindered Amine Light Stabilizer (HALS), an antioxidant, or combinations. The structured polyurethane layer further comprises at least one additional additive selected from particles, mold release agents, antimildew agents, antifungal agents, antifoaming agents, antistatic agents, coupling agents and combinations. Preferred Parameters: The Fresnel lens upon exposure to 2916 MJ/m2 of cumulative UV radiation in the range of 300-400 nanometers, has a change in the % transmission of the lens at 500 nanometers of less than 4%. The Fresnel lens upon exposure to 2916 MJ/m2 of cumulative UV radiation in the range of 300-400 nanometers has a change in the % transmission of the lens at 500 nanometers of less than 1%. The structured polyurethane layer is cross-linked. Preferred Method: In preparing the Fresnel lens, preparing the transparent substrate, curable reaction mixture laminate construction comprises: coating the curable reaction mixture on at least a portion of the first surface of the transparent substrate; and contacting a structuring tool to at least a portion of the coated curable reaction mixture. Preparing the transparent substrate, curable reaction mixture laminate construction comprises: coating the curable reaction mixture on at least a portion of the structuring tool; and contacting the first surface of the transparent substrate to at least a portion of the coated curable reaction mixture. The method further comprises surface treating the first surface of the transparent substrate prior to coating the curable reaction mixture, where the curable reaction mixture comprises an aliphatic polyol and an aliphatic polyisocyanate. Alternatively, preparing the Fresnel lens comprises: providing a curable reaction mixture comprising: apolyol; a polyisocyanate; a catalyst; and at least one UV stabilizer; providing a structuring tool with a structured surface; contacting the curable reaction mixture to the structured surface of the structuring tool; treating the reaction mixture; providing a transparent substrate with a first surface and a second surface; adhesively bonding the cured reaction mixture to the first surface of the transparent substrate; and removing the structuring tool. Adhesively bonding comprises: application of a pressure sensitive adhesive to at least a portion of the cured reaction mixture and contacting the cured reaction mixture to the first surface of the transparent substrate; application of a pressure sensitive adhesive to at least a portion of the first surface of the transparent substrate and contacting the cured reaction mixture to the first surface of the transparent substrate; application of a curable adhesive material to at least a portion of the cured reaction mixture, contacting the cured reaction mixture to the first surface of the transparent substrate, and treating the curable adhesive material; application of a curable adhesive material to at least a portion of the first surface of the transparent substrate, contacting the cured reaction mixture to the first surface of the transparent substrate, and treating the curable adhesive material; or a combination. Removing the structuring tool occurs before adhering the treated reaction mixture to the first surface of the transparent substrate. EXAMPLE - No suitable example given.