| 摘要 |
PURPOSE: An optical semiconductor based lighting device is provided to maintain the durability by having an enforcement structure that a housing and a heat sink are connected and positioned with each other and to efficiently utilize a space by freely controlling the location that a component embedded in the housing is mounted to a part constituting the heat sink. CONSTITUTION: An optical semiconductor lighting device includes: a light emitting module in which at least one semiconductor optical devices are formed; a heat sink(300) which has an inner space formed by several surfaces, is mounted adjacent to the light emitting module, and the one side surface of which is opened; and an SMPS(Switching Mode Power Supply,400) which is coupled to a secondary heat dissipating plate(510), in which several secondary heat radiation pins(520) which face toward the center of the inner space or face from the opened one side surface of the heat sink to the outside, are formed. |
