Patent ID: 8118462
Filing Date: 2012-02-21
Classification: F21S,F21V,F21Y

Abstract:
1. An automotive lamp comprising: a semiconductor light emitting device as a light source; a heatsink which radiates heat produced by the semiconductor light emitting device, the heatsink including a plurality of plate fins installed upright on a base part and a plurality of ventilation passages formed between the plate fins; a centrifugal fan which performs a forced air cooling of the plate fins by sending air through the ventilation passages of the heatsink, the centrifugal fan having air inlets open in an axial direction thereof for drawing air in and a plurality of air outlets for discharging air in a plurality of directions perpendicular to the axial direction thereof; and a lamp housing which houses the semiconductor light emitting device, heatsink, and centrifugal fan, wherein the plate fins of the heatsink are formed such that an entrance of at least one of the plurality of ventilation passages faces each of the air outlets of the centrifugal fan, and wherein the heatsink further includes a plurality of fins in the axial direction of the centrifugal fan, and the plurality of fins are subjected to a forced air cooling by an intake of air caused by the centrifugal fan.