BACKLIGHT UNIT AND ILLUMINATION SYSTEM USING THE SAME

摘要

PURPOSE: A backlight unit and an illumination system using the same are provided to secure uniform brightness by forming an air guide having a part inclined surface without a light guide plate. CONSTITUTION: Light source modules(100) are arranged between a first and a second reflector(200,300). The lower surface of the first reflector faces the second reflector. The lower surface includes the first area of a first flat surface(201) and the second area of a first inclined surface(202). The first flat surface is adjacent to the light source module. The first inclined surface is extended from the end of the first flat surface and is inclined on the second reflector. The end of the first inclined surface is located on the same line as the light source module. [Reference numerals] (AA) First area; (BB) Second area; (CC) Third area; (DD) Fourth area; (EE) Fifth area