Lens and light emitting module for surface illumination
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United States of America Patent
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Dec 27, 2016
Grant Date -
Feb 26, 2015
app pub date -
Aug 26, 2014
filing date -
Aug 26, 2013
priority date (Note) -
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Abstract
A light emitting module includes a circuit board, light emitting elements disposed on the circuit board, each light emitting element including light emitting diode chips and a wavelength conversion layer coated on the light emitting diode chips, and a lens disposed on the light emitting elements and configured to diffuse light emitted from the light emitting elements. The lens includes a concave part having a light incident surface and an upper surface through which the light incident on the lens is emitted, and at least one of the light incident surface and the upper surface includes sections disposed at least 15° from a central axis and sequentially connected in a first direction.
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