SPREAD LIGHT LENS AND LED STRIP LIGHTS HAVING SAME
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United States of America Patent
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Mar 11, 2016
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Mar 27, 2015
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Abstract
An LED strip light includes a printed circuit board, a plurality of LED chip, and a lens group. The lens group includes at least two spread light lenses. The spread light lenses include an optical axis, a light emitting surface, a central point of the light emitting surface, and a light incidence surface arranged at interval with the light emitting surface. A ligature between the central point of the light emitting surface and the central point of the light incidence surface is perpendicular to the light incidence surface and an angle between the ligature and the optical axis is equal to an angle between the light emitting surface and the light incidence surface to deflect the light emitted from the light emitting surface. The LED strip lights can avoid forming bad lighting regions which have dramatic light and shade contrast, and contribute to improve luminous efficacy of light source.
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