Elongated LED Lamp
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United States of America Patent
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Issued Date -
Feb 23, 2012
app pub date -
Aug 23, 2011
filing date -
Aug 23, 2010
priority date (Note) -
Abandoned
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Abstract
An elongated LED lamp includes an elongated side-light distribution arrangement least three sequentially arranged side-light distribution portions; a plurality of LED light sources respectively associated with said portions by having one LED light source primarily illuminating a respective portion, via a light coupling means, when the central axes of light emission from each of the LED light sources are not aligned with each other and by having one or a spaced pair of LED light sources, each located at an end of the portion, primarily illuminating a respective portion, via a light coupling means, when the associated LED light sources have central axes of light transmission aligned with each other; and each respective light coupling means transforms at least 15% of received light into an appropriate angular distribution needed for total internal reflection within an associated side-light distribution portion.
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