| 摘要 |
<p>Disclosed are a light emitting device, a light emitting device package, and a lighting system. The light emitting device includes an electrode layer (130), a current density adjusting pattern (120) on the electrode layer, and a light emitting structure on the electrode layer and the current density adjusting pattern. A column pattern (B) or a hole pattern (H) serving as a structure of a resonant cavity is formed at an upper portion of the light emitting structure.
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