| 摘要 |
PROBLEM TO BE SOLVED: To provide a lamp unit of a vehicle lamp or the like, capable of improving heat radiation of a semiconductor light source and ensuring required lamp light distribution performance even if the unit is small in size.SOLUTION: In a lamp unit including: a reflector having a reflection surface that is a generally rotational parabolic surface; semiconductor light sources each including a light-emitting chip arranged at a focal position of this reflector; and a holder holding the semiconductor light sources, the reflector is configured to be divided into a plurality of reflection surfaces by a radiant ray passing through a center thereof, centers of the semiconductor light sources generally match focal positions of the respective reflection surfaces of the reflector, and each of the light-emitting chips is attached to a reflector-side of the holder. |
