| 摘要 |
A natural lighting apparatus using an aspheric lens of induced reflection is provided to restrict bacteria and mold by projecting sunlight to a basement in the daytime, and to reduce electricity consumption by using solar energy. A natural lighting apparatus(1) using an aspheric lens is installed on a roof of a building, and sunlight is collected through a condensing window(16) and reflected with a first condensing reflector. The natural lighting apparatus adjust the incident angle of the aspheric lens and a heat insulation filter, and regulates the focus of sunlight reflected and expanded on the vertical line with the aspheric lens and the heat insulation filter. Sunlight is collected through a protection reinforcing glass(8) on the condensing window, and reflected with the aspheric lens through the heat insulation filter to a condensing light guide pipe. Concentration efficiency of sunlight is increased by moving the natural lighting apparatus with a servo motor according to signals from a sunlight tracking unit. |
