| 摘要 |
PROBLEM TO BE SOLVED: To allow the same lens to be shared for both left and right.SOLUTION: The invention includes a lens 2 and a semiconductor type light source 3. The lens 2 includes an incidence surface 20, and emission surfaces 21, 22, 23, 24, 25 being divided in upper stage, middle stage, and lower stage. The emission surface 21 of the upper stage and the emission surface 25 of the lower stage make emission in a first light distribution pattern P1 and a fifth light distribution pattern P5, being symmetrical or almost symmetrical about upper and lower vertical lines VU-VD of a screen. As a result, the invention allows the same lens 2 to be shared for both left and right in use. |
