| 摘要 |
PURPOSE:To prevent an optical fiber having a light projecting port coated with a flexible pipe to be optionally bent from burning and to improve converging efficiency by arraying the incident ports of optical fibers on a linear or band-like converging part linearly or like a band. CONSTITUTION:A light beam radiated from a discharge tube 1 is converged by an elliptic cylinder type mirror 2 and linearly converged into one focal position 5 of the mirror 2. Optical fibers 3 having linear incident ports and a solid box 9 in which the optical fibers 3 are arrayed are arranged on the converging part and the incident ports of the optical fibers 3 are fixed on the approximately same position as the focal position 5. Each optical fiber flux 6 branched from the solid box 9 is coated and protected with/by the flexible pipe 10 to be optionally bent and the terminal end of the flexible pipe 10 is an outgoing port 8. Consequently, optical energy in each unit area of an optical fiber is reduced, the burning of the optical fibers can be removed and the converging efficiency can be improved because the light is converged in accordance with the shape of a light source. |
