INTERIOR LIGHTING DEVICE USING POWER SUPPLY AND NATURAL LIGHTING

摘要

PURPOSE: A natural lighting and power supply type lighting device is provided to enable indoor lighting by inducing sunlight to indoor after collecting. CONSTITUTION: A wall structure(100) partitions indoor and outdoor. A through hole(110) passes sunlight through the wall structure. An optical duct(200) has an optical path(210). A light collection unit(220) outputs sunlight to indoor through the optical path of the optical duct. The light collection unit is located in the upper part of the optical duct. An optical reflection plate(230) is formed on the wall of the optical path of the optical duct. An optical diffusion plate(240) induces diffusion of light. A lighting device(250) emits light.