SUN LIGHTING APPARATUS OF A ROOF TYPE SUN LIGHT BOTTOM STRUCTURE, CAPABLE OF MAXIMIZING INDOOR ILLUMINANCE THROUGH A LIGHTING UNIT AND REDUCING ENERGY

摘要

PURPOSE: A sun lighting apparatus of a roof type sun light bottom structure is provided to reduce maintenance cost for a building by maximizing insulation effect, soundproof effect, and indoor illuminance through a first convex lens.;CONSTITUTION: In a sun lighting apparatus of a roof type sun light bottom structure, a roof has a space at the center. A first convex lens(30) is spaced from the space by a certain distance to refract incident light to the space, and it is ascended and descended to block the space of the roof when lighting is impossible. A pair of second convex lens(40) are faced to the first convex lens in diagonal direction and distributes incident light which is refracted by the first convex lens in the lower part of the roof.;COPYRIGHT KIPO 2012