This research has carried out the analysis of the efficiency of natural light as an interior lighting system through fiber
optic transmission in Paraguay as a pioneering alternative to energy demand. For its analysis, the construction of a flat concentrator in the shape of a truncated pyramid was carried out, with a metal support equipped with rotational movements both in the x and y planes in such a way as to manually track the sun. At the light concentration point, a support was placed for the 6mm diameter and 10-meter-long optical fiber that transports the concentrated light from one end to the other. This light transmission was measured with a luxmeter to determine the amount of illumination from the concentration point to the end of the fiber. It has been observed that, for an illuminance of 109,200 lux coming from the source (sun) with an orientation of 40º North and with an inclination of 27º with respect to the normal, the illuminance obtained at the end of the fiber located in a totally isolated room of the source was 21,600 lux at the surface of the optical fiber. In addition, the light beam projected by the optical fiber has an opening angle of 60º. Given that the room to be illuminated with the natural light source has artificial light that projects an illuminance of 80,800 lux on the surface of the lamp, it is estimated that 8 (eight) points of natural light will be necessary for said room for adequate lighting.

Keywords
Fiber, Optic, Natural Light, Efficiency.

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Mr. Ramón Martínez