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US 2016/0097510 A1Published application
Light-Emitting Device, Backlight Unit Including the Device, and Display Apparatus Including the Unit
AssigneeLG Innotek Co., Ltd.
InventorJae Wook Jung
Life of this patent
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Abstract
Embodiments provide a light-emitting device including a light source, and a lens disposed above the light source. The lens includes a lower part having a first recess formed in an optical-axis direction so as to face the light source, and an upper part having a second recess formed in the optical-axis direction so as to be opposite to the lower part. The first recess and the second recess are spaced apart from each other by a separation distance within a range from 1 mm to 4.7 mm on an optical-axis.
Claims20
A light-emitting device, comprising:
- a light source;
- and
- a lens disposed above the light source,
- wherein the lens includes:
- a lower part having a first recess formed in an optical-axis direction so as to face the light source;
- and
- an upper part having a second recess formed in the optical-axis direction so as to be opposite to the lower part,
- wherein the first recess and the second recess are spaced apart from each other by a separation distance within a range from 1 mm to 4.7 mm on an optical-axis.
5 more elements
Dependencies are inferred from the claim text.