| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting system capable of achieving desired light distribution even though a cover having a lens, which is integrally formed on the cover, to control light distribution is mounted on a body part.SOLUTION: The shape of a cover 2 before mounted on a body case 6 with machine screws is differentiated from that of the cover 2 after mounted on the body case 6 with the machine screws. Before fixed with the machine screws, the cover 2 has "a truncated chevron shape" such that its center in the longitudinal direction is higher than each end in the longitudinal direction (Fig.5A). Then, after fixed with the machine screws, the cover 2 is fastened with the machine screws to be deformed into an ideal horizontal state (Fig.5B). |
