LIGHTING DEVICE CAPABLE OF UNIFORMLY IRRADIATING LIGHT TO THE FRONT SIDE OF A BOARD BY IMPROVING ILLUMINANCE HIGHER THAN A CONSTANT LUX PER A UNIT AREA

摘要

PURPOSE: A lighting device is provided to reduce the number of a LED lighting device and the entire weight by thinly forming the thickness of a board.;CONSTITUTION: A cover(40) is installed on a base panel(10). A lighting device for emitting light is composed between the base panel and the cover. A frame(50) is used in order to fix the base panel and the cover. A diffusion sheet(20) is installed between the base panel and the cover. An LED lighting device(30) is installed in the edge of the diffusion sheet in order to emit light towards the cover. An installation groove is formed in the diffusion sheet. The LED lighting device is installed in the installation groove.;COPYRIGHT KIPO 2011