| 摘要 |
The present invention relates to a lighting device. The lighting device according to the present invention comprise: a heat radiator including a first heat radiating unit with a first thermal conductivity and a second heat radiating unit with a second thermal conductivity combined to the first heat radiating unit; and a light source module disposed on the heat radiator and including a substrate and multiple light emitting elements disposed on the substrate, wherein the first thermal conductivity is greater than the second thermal conductivity, the second heat radiating unit has an inner side portion, an outer side portion surrounding the inner side portion, and a first storage portion formed between the inner side portion and the outer side portion, the first heat radiating unit has an upper portion which is disposed on the inner side portion of the second heat radiating unit and on which the light source module is disposed, and multiple lower portions disposed in the storage portion of the second heat radiating unit. According to the embodiment described above, the manufacturing costs can be reduced and heat radiating performance can be improved. |
