CPC H10K 59/879 (2023.02) [G02B 3/08 (2013.01)] | 15 Claims |
1. An optical system comprising:
a light source;
an optical film curved about a first axis and comprising a microstructured first major surface and an opposing second major surface, the microstructured first major surface defining a linear Fresnel lens comprising a plurality of Fresnel elements extending longitudinally along the first axis; and
a light control film curved about the first axis and disposed between the light source and the optical film, the first major surface of the optical film facing the light control film, the light control film comprising a plurality of alternating optically transmissive and optically absorptive regions extending longitudinally along the first axis such that in a cross-section orthogonal to the first axis, for at least a majority of the optically transmissive regions, a centerline between adjacent optically absorptive regions is substantially normal to a major surface of the light control film.
|