| 摘要 |
PURPOSE: An LED(Light Emitting Diode) bulb is provided to reduce a size by arranging a substrate mounting unit inside a glass globe. CONSTITUTION: An LED(2) is fixed on an upper side of a substrate(4). The substrate has a wiring pattern for supplying the power to the LED. The substrate mounting unit has a polyhedral shape. A substrate mounting unit is fixed on a lower side of the substrate. A heat sink discharges the heat from the LED and the substrate. A coupling unit(8) is formed in the center of the upper side of the heat sink and is fixed on the substrate mounting unit. A socket(10) is arranged on the lower side of the heat sink. A driver is arranged inside the socket to drive the LED. |
