Heat dissipation module for optical projection system

Abstract

A heat dissipation module for an optical projection system includes a flow channel, a fan and an air filter. The flow channel is disposed in the optical projection system and has an air intake and an air vent. The fan is disposed in the flow channel to induce an air flow and has an air inlet and an air outlet. The air flow enters the flow channel via the air intake, passes through the air inlet and the air outlet in succession and leaves the flow channel via the air vent. A color wheel and a photo sensor are disposed in the flow channel and positioned between the air intake of the flow channel and the air inlet of the fan, and an integration rod is disposed in the flow channel and positioned between the air outlet of the fan and the air vent of the flow channel. The air filter is disposed in the air intake of the flow channel.

1 . A heat dissipation module for an optical projection system, the optical projection system comprising a color wheel, a photo sensor and an integration rod, and the heat dissipation module comprising:
 a flow channel disposed in the optical projection system and having an air intake and an air vent;   a fan disposed in the flow channel to induce an air flow and having an air inlet and an air outlet, the air flow entering the flow channel via the air intake, passing through the air inlet and the air outlet in succession and leaving the flow channel via the air vent, wherein the color wheel and the photo sensor are disposed in the flow channel and positioned between the air intake of the flow channel and the air inlet of the fan, and the integration rod is disposed in the flow channel and positioned between the air outlet of the fan and the air vent of the flow channel; and   an air filter disposed in the air intake of the flow channel.   
     
     
         2 . The heat dissipation module for an optical projection system as claimed in  claim 1 , wherein the color wheel has a wheel motor and the wheel motor is substantially surrounded by the flow channel. 
     
     
         3 . The heat dissipation module for an optical projection system as claimed in  claim 1 , wherein the color wheel has an index mark read by the photo sensor. 
     
     
         4 . The heat dissipation module for an optical projection system as claimed in  claim 1 , wherein the air flow flows through the color wheel, the photo sensor and the integration rod in succession. 
     
     
         5 . A heat dissipation module for an optical projection system, the optical projection system comprising a color wheel, a photo sensor and an integration rod, and the heat dissipation module comprising:
 a flow channel disposed in the optical projection system and having an air intake and an air vent;   a fan disposed in the flow channel to induce an air flow and having an air inlet and an air outlet, the air flow entering the flow channel via the air intake, passing through the air inlet and the air outlet in succession and leaving the flow channel via the air vent, wherein the integration rod is disposed in the flow channel and positioned between the air intake of the flow channel and the air inlet of the fan, and the color wheel and the photo sensor are disposed in the flow channel and positioned between the air outlet of the fan and the air vent of the flow channel; and   an air filter disposed in the air intake of the flow channel.   
     
     
         6 . The heat dissipation module for an optical projection system as claimed in  claim 5 , wherein the color wheel has a wheel motor and the wheel motor is substantially surrounded by the flow channel. 
     
     
         7 . The heat dissipation module for an optical projection system as claimed in  claim 5 , wherein the color wheel has an index mark read by the photo sensor. 
     
     
         8 . The heat dissipation module for an optical projection system as claimed in  claim 5 , wherein the air flow flows through the integration rod, the photo sensor and the color wheel in succession. 
     
     
         9 . A heat dissipation module for an optical projection system, the optical projection system comprising a color wheel, a photo sensor and an integration rod, and the heat dissipation module comprising:
 a flow channel disposed in the optical projection system and having an air intake and an air vent;   a fan disposed in the air intake of the flow channel to induce an air flow, the air flow entering the flow channel via the air intake and leaving the flow channel via the air vent, wherein the color wheel, the photo sensor and the integration rod are disposed in the flow channel, and the air flow flows through the color wheel, the photo sensor and the integration rod in succession; and   an air filter disposed in an air inlet of the fan.   
     
     
         10 . The heat dissipation module for an optical projection system as claimed in  claim 9 , wherein the color wheel has a wheel motor and the wheel motor is substantially surrounded by the flow channel.