13 September 2005 Linear lighting systems for shelf and cove lighting
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Abstract
LED tapes are emerging as cost effective light sources for longitudinal applications, such as strip lighting and accent lighting on buildings, and shelf and cove lighting for interior lighting. Such applications can be sorted into direct viewing and illuminative. In the latter, uniform illumination is the most frequent desideratum, particularly on nearby surfaces spanning large solid angles from the light source. The LED tape by itself creates a hot line directly underneath it and relatively dim illumination at target's distant edge. Instead, extruded refractive lenses have been prototyped that spread out the light such as to provide uniform illumination over nearby target zones. Different lens profiles are available for different lighting configurations, via the redistribution of the light field of the LED tape. Each lens acts as a magnifier where candlepower is required for distant slanted surfaces and as a de-magnifier towards the closest surfaces.
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William A. Parkyn, William A. Parkyn, David G. Pelka, David G. Pelka, Andy Lipman, Andy Lipman, } "Linear lighting systems for shelf and cove lighting", Proc. SPIE 5941, Fifth International Conference on Solid State Lighting, 59410P (13 September 2005); doi: 10.1117/12.619153; https://doi.org/10.1117/12.619153
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