| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for actualizing the entry of more light fluxes from a light source into a slender lens.SOLUTION: A vehicular headlight 100 includes a projection lens 10 having an entrance surface 10a and an emission surface 10b which are slender with their vehicle width directions as longitudinal directions, and having an optical axis Ax extending in a vehicle longitudinal direction X, a light source 12 arranged on the further rearward side than a rear side focus F of the projection lens 10, and a reflector 14 for reflecting at least part of light emitted from the light source 12 toward the projection lens 10. The light source 12 is arranged so that the front side of a light-emitting surface 12a faces the lateral side of the reflector 14. |
