SOLAR CONCENTRATING DEVICE FOR NATURAL LIGHTING

摘要

A solar concentrating apparatus for indoor lighting is provided to prevent corrosion of a peripheral part due to a radiant heat of sun by cooling the peripheral part and a light transfer pipe through a cooling device. A top part of an installation frame is opened. A modularized lens plate(20) is mounted in an opened part of the top part of the installation frame. A plurality of concentrating lenses(22) is arranged to the modularized lens plate with a horizontal direction and a vertical direction. A heat-radiating material(30) is spread on a floor surface of the installation frame. A light transfer unit(40) includes a first light transfer pipe, a second light transfer pipe, a third light transfer pipe, and a light pipe. The light pipe is positioned under a center of the concentrating lens. A filtering device(50) transmits a visible ray from the concentrated sunlight. A cooling device(60) cools a radiant heat of sun.