| 摘要 |
PURPOSE:To provide a lighting device facilitating installation of an equipment for lighting up a high-rise building, etc., and exchanging a lamp safely and facilitating change in a light irradiation condition as well. CONSTITUTION:This device is constituted so that in an optical transmission hose constituted of core material 21 in a viscosity liquid state, a slid state or a gelatinized state and high polymer clad material 22 with flexibility, one end of the optical transmission hose 2 making the re-fractive index of the clad material 22 the same lower than the same of the core material 21 is connected to a light source 1, and the other end of the optical transmission hose 2 is installed facing to the outdoor structure of the building, a steel tower, an advertising pillar, etc., and incident light from the light source 1 on one end of the optical transmission hose 2 irradiates the structure from the other end of the optical transmission hose 2. |
