| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vehicular lamp having a compact air-blower means which can efficiently radiate heat generated by a light emitting element into a lamp chamber space. <P>SOLUTION: In the vehicular lamp 1 provided and fixed in a lamp chamber with a light source unit 10a having a light emitting element 14 as a light source in a metal bracket 12 with a heat sink 20a wherein radiation fins 21 are arranged together and provided with an air-blower means for air-cooling forcibly the heat sink 20a in a prescribed position in the lamp chamber, the air-blower means is structured by an air-discharging unit and an air-blowing duct 30a which guides the air discharged from the air-discharging unit to the hear sink 20a. The air-blower means can be compact since the air-blower is composed of a compact air-discharging unit (a piezoelectric blower 40) and an air-blowing duct 30a. Further, since the entire high-speed air flow discharged from the piezoelectric blower 40 is surely blown to the heat sink 20a (gaps of radiation fins 21) through the air-blowing duct 30a, heat radiating efficiency of the heat sink 20a can be enhanced and reduction of light emitting efficiency of the light emitting element 14 can be suppressed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
