Patent ID: 7575346
Filing Date: 2009-08-18
Classification: F21K,F21V,F21Y

Abstract:
1. A lamp, comprising: a housing including a lens and a base on two ends thereof, with an outlet section and an inlet section being formed on the wall of the housing; a heat sink being mounted inside the housing and including a base plate and a plurality of fins, with the fins being close to the outlet section of the housing and arranged around the base plate to form a chamber, with each of the fins having a first end facing the inlet section of the housing and a second end connecting with the base plate; a light emitting member being fixed to the base plate of the heat sink and facing the lens of the housing, with the light emitting member electrically connecting to the base of the housing; a fan, being fixed inside the chamber of the heat sink, and forming air intake through the inlet section and moving air to the outlet section; and a blocking ring being mounted inside the housing and between the inlet section and the heat sink and including an inlet hole aligned with the chamber of the heat sink.