NASA NTRS · 19780000189
Optics for natural lighting
Abstract
Energy-saving optics utilize sky and sun for lighting. Innovative optical arrangements for transmitting outdoor light into building interiors are decribed using flat white and mirrored surfaces for converging and diverging light pipes.
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Edwards, H. B.. 1978-10-01. Optics for natural lighting. https://ntrs.nasa.gov/citations/19780000189
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