Patent ID: 8177372

Claim:
A projector apparatus comprising: a light source, an optical system adapted to construct imaging light in response to a beam of light received from said light source, wherein both said light source and said optical system are accommodated in a casing, and an exhaust unit mounted on an inner wall of said casing cools the components inside said casing, said exhaust unit comprising a first exhaust fan and a second exhaust fan, wherein the first exhaust fan and the second exhaust fan are arranged in different planes to allow said airflow from the first exhaust fan and second exhaust fan to intersect, wherein an exhaust end of the first fan and an exhaust end of the second fan are angled toward each other, said projector apparatus comprising: an air inspiration mechanism provided on an inner wall of said casing in association with said exhaust unit to allow said exhaust unit to inspire ambient air through said air inspiration mechanism and to lower the temperature of the air to be expired from said exhaust unit.