| 摘要 |
PURPOSE:To light up the inside of a room efficiently with solar light by using a light collector provided on the roof of a building and optical fiber in combination. CONSTITUTION:Solar light collected by the light collector 12 provided on the roof of the building is guided to the 1st light incidence part 38 in a supply device 36 through a bundled fiber cable 28, collimated through a lens 42, and guided to a bundled optical fiber cable 50 through the 1st light projection part 46. On the other hand, artificial light from the 2nd light incidence part 52 having a high-brightness lamp 54 is collimated through the lens 42 and guided to a bundled optical fiber cable 51 through the 2nd light projection part 146. The light guided to the bundled optical fiber cables 50 and 51 lights up the inside of the room from the ceiling through a light diffuser. |
