Ked & Associates LLP
Optical lens, light emitting device, and lighting device
An optical lens, light emitting device, and lighting device are provided. The optical lens may include a first surface, a second surface disposed over the first surface, a third surface concaved with respect to the second surface towards the first surface, wherein the third surface converges toward a center thereof with a curved shape, and wherein a predetermined distance is provided between the third surface and the first surface along an optical axis, which is a straight line that passes through the center of the third surface and a center of the first surface, a protruder centrally arranged with respect to the first surface and that protrudes in a first direction along the optical axis, wherein a cross-section of the protruder taken along the optical axis includes two curved portions that each curve in the first direction and then curve in a second direction opposite to the first direction to substantially meet at the optical axis, and a plurality of supports that extend from the first surface in the first direction, and configured to provide a space below the protruder, wherein the plurality of supports is provided adjacent to the protruder.
LG INNOTEK CO., LTD.
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G02B G02F F21V G02F G02B H01L F21V
inventional additional inventional additional inventional additional inventional
Leeim Hyun Ho Chang Gyun Chang Hyuck
Kang Choi Son Lee