| 摘要 |
PURPOSE: A bar type LED lighting device is provided to prevent the discoloration of a light transmitting tube due to the ultraviolet ray by absorbing the ultraviolet ray discharged from the LED and the external light source. CONSTITUTION: A power module(20) converts the power received from an electrode terminal to the LED driving power. A plurality of light emitting modules(22a,22b) are electrically connected to the power module. Each light emitting module is comprised of a substrate and LEDs. A light transmitting tube(14) has a partially cut cylindrical shape. The light transmitting tube includes transparent synthetic resin and an ultraviolet shielding agent or ultraviolet absorbing agent. A heat sink module(24) is slidably combined in the light emitting module. The heat sink module absorbs and discharges the heat generated from the light emitting module. The heat sink module fixes the light emitting module and the light transmitting tube. An external cap(12) is combined in both sides of the light transmitting tube. The external cap and the light transmitting tube are sealed with the epoxy molding. |
