| 摘要 |
The light radiator comprises a transparent cylinder(10) and an optical conductor(20) for guiding light rays into the cylinder through one end. An optical device(30) is movably accommodated inside of the cylinder for reflecting the light rays which have been guided into the cylinder from the optical conductor and then radiating the light rays outside the cylinder. A driving device(40- 42) moves the optical device along the axis of the cylinder. The optical device is constructed with a cylindrical transparent member having an edge surface formed on a plane and another edge surface formed on an inclined plane. |
