NASA NTRS · 19660000505
Panels illuminated by edge-lighted lens technique
Abstract
Electroluminescent lamps used to edge-light a specially ground lens provide nonglare, reduced eye strain panel illumination. There is no noticeable falloff in brightness along the lens edge. Light intensity diminishes toward the lens center. A slight halo, observed along the lens edge, has no detrimental effect.
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Haag, G. E., Horsfall, R. B.. 1966-11-01. Panels illuminated by edge-lighted lens technique. https://ntrs.nasa.gov/citations/19660000505
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