VEHICULAR LIGHTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a vehicular lighting device capable of suppressing breakage of a radiation fin.SOLUTION: A vehicular lighting device of the embodiment includes: a socket; and a light emitting module provided at one end side of the socket and having a light emitting element. The socket includes: a first protrusion part provided on an opposite end part from the side on which the light emitting module is provided, and in the vicinity of an outer peripheral edge of the end part; and a plurality of second protrusion parts provided closer to the center side of the end part than the first protrusion part so as to be parallel with each other. A thickness dimension of the end parts on both sides in the direction crossing the direction in which the light emitting module of the first protrusion part is provided is longer than a thickness dimension in the vicinity of the center of the first protrusion part.SELECTED DRAWING: Figure 3