| 摘要 |
PURPOSE: A photometric surface light source lighting device is provided to illuminate a whole diffusion plate uniformly, by diffusing a light emitted from a light emission source into the inside of the lighting device. CONSTITUTION: A panel frame (330) is formed with at least more than one panel. The panels are installed with a plurality of light emitting diode (LED) lamps in the inside. Diffusion plates (310, 320) are installed on at least one surface among one side and the other side of the panel frame. The diffusion plates diffuse the light of the LED lamps to the outside. A diffused reflection surface reflects the light incident from the LED lamps. |
