Innovative light collimator with afocal lens and total internal reflection lens for daylighting system.


This research presents a novel design of the collimator, which uses total internal reflection (TIR), convex, and concave lenses for the natural light illumination system (NLIS). The concept of the NLIS is to illuminate building interiors with natural light, which saves energy consumption. The TIR lens is used to collimate the light, and convex and concave… (More)
DOI: 10.1364/AO.54.00E165


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