| 摘要 |
PROBLEM TO BE SOLVED: To provide a vehicular headlight capable of switching light distribution between low beam and main beam with a single lamp body.SOLUTION: A vehicular headlight comprises first and second phosphors, a semiconductor laser, a reflection mirror, a translucent member, and a control part. The semiconductor laser is provided away from the first and second phosphors, to emit light to the first and second phosphors from different directions. The reflection mirror is, with a paraboloid for reflecting the light generated from the first and second phosphors as a base, arranged so that the first and second phosphors are positioned around its focal point. The translucent member is provided to face the reflection mirror and allows transmission of the light of the first and second phosphors reflected on the reflection mirror. The control part controls the semiconductor laser, and controls light distribution by selectively radiating the light of semiconductor laser to the first and second phosphors. |
