Patent ID: 8109661
Filing Date: 2012-02-07
Classification: F21S,F21V

Abstract:
1. An illumination apparatus, comprising: a housing, having a bottom and an outlet, the outlet disposed at one side of the bottom; a light source module, disposed on the bottom of the housing; a plurality of heat sink fins, disposed in the housing and thermal conductivity connected with the light source module; a shutter structure, comprising a plurality of guiding plates, a connecting rod, and an operating element, the guiding plates disposed on the outlet, each of guiding plates being connected to the connecting rod, the operating element disposed at one end of the connecting rod and providing an operating force for the connecting rod; and a variable element, near the heat sink fins and connected with the connecting rod, wherein the variable element is deformed to exert a force on the connecting rod when the variable element is heated.