Lens with elongated radiation pattern
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United States of America Patent
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Jul 9, 2019
Grant Date -
Jun 21, 2018
app pub date -
May 20, 2016
filing date -
Jun 1, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An elongated lens (300) is formed with a trough (310) along the long axis on the light emitting surface of the lens. The elongated lens (300) may include a curved wall (325) about its perimeter, and a smooth transition (317) between the curved wall (325) and the trough (310). The trough (310) may include a concave shape along both the long axis and the short axis, although the radius of curvature of the concave shape may differ between the long and short axes. The eccentricity of the illumination pattern may be controlled by the size of the trough (310) and these radii of curvature.
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