| 摘要 |
The present invention relates to a lighting device. The lighting device according to an embodiment includes: a heat radiator including a first heat radiation unit having a first heat conductivity, and a second heat radiation unit having second heat conductivity which is lower than the first heat conductivity; a light source module including a substrate, and a plurality of devices on the substrate. The second heat radiation unit includes an inner side unit, an outer side unit covering the inner side unit, and a first containing unit formed between the inner side unit and the outer side unit. The first heat radiation unit includes: an upper side which is arranged on the outer side unit of the second heat radiation unit; and a lower side which is arranged on the first containing unit of the second heat radiation unit. The first heat radiation unit and the second heat radiation unit are integrally formed. The upper side of the inner side unit and the upper side of the outer side unit of the second heat radiation unit have at least one or more protrusion units or a groove unit. The lighting device according to the embodiment is able to block the bending of the first heat radiation unit of the heat radiator. |
