The present invention relates to a diamond-type LED device, in the LED (LED) device, the light emitting unit for emitting light by applying power to the cathode electrode and the anode electrode from the outside, covering the light emitting unit, and the light emitted from the light emitting unit A molding part is molded to be diffused, and includes an upper pattern part corresponding to an upper surface of the molding part, and a lower pattern part corresponding to a surface having a predetermined angle so as to unfold to an upper side of the molding part with respect to a light emitting part located inside the molding part. The diffusion pattern portion is characterized in that it is provided with a polygonal surface. The present invention configured as described above has the advantage of increasing the brightness of the light and maximizing the illumination area while maintaining the straightness of the light emission, and easy to control the optical characteristics and color control due to the ease of replacement of the diffusion pattern portion to implement this Can be.
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