Optical system including light control film and fresnel lens

An optical system comprising:

• an optical film curved about a first axis and comprising a first layer comprising a microstructured first major surface and an opposite second major surface, the microstructured first major surface defining a linear Fresnel lens comprising a plurality of Fresnel elements extending along the first axis, each Fresnel element comprising an optical facet and a sidewall meeting the optical facet at a ridge of the Fresnel element, wherein for each Fresnel element in at least a majority of the Fresnel elements, an optically absorptive layer is disposed on the sidewall, the optically absorptive layer having an average thickness t, 100 nm<t<1 micrometer;
• and
• a light control film disposed proximate the optical film, the light control film curved about the first axis and substantially coextensive with the optical film, the first major surface of the optical film disposed between the light control film and the second major surface of the optical film so that the first major surface of the optical film faces the light control film, the light control film comprising a plurality of spaced apart optically absorptive regions extending along the first axis, each optically absorptive region extending substantially normally to a major surface of the light control film,
• wherein at least one of the optical film or at least one layer disposed between the optical film and the light control film comprises at least one reflection mitigation element.