SUNLIGHT GUIDING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a sunlight guiding system capable of effectively utilizing light including a wavelength in the range of ultraviolet rays among light included in the sunlight.SOLUTION: The sunlight guiding system comprises: a solar concentrator 3 installed outdoors; a light guide 4 for guiding the sunlight condensed by the solar concentrator 3 indoors; and a lit-emitting end 5 for emitting the sunlight led indoors by the light guide 4. At least a portion of the light guide 4 is composed of a liquid core light guide 21. The light guide 4 is configured such that the portion thereof from the solar concentrator 3 to a connection point P installed indoors is composed of a quartz light guide 11, and the portion thereof from the connection point P to the light-emitting end 5 is composed of a liquid core light guide 21.