Patent ID: 7543942
Filing Date: 2009-06-09
Classification: G03B,H04N

Abstract:
1. An automatic door apparatus of a projector, the projector including a case, the case having a heat discharging opening for discharging heat out of the projector, the automatic door apparatus comprising: a frame disposed at the case, the frame facing the heat discharge opening; a door assembly reciprocally movable along the frame in a first direction for opening and closing the heat discharge opening; and a driving unit disposed in the case for moving the door assembly along the first direction, the driving unit moving the door assembly along the first direction from a first position to a second position to open the heat discharge opening in response to a first operation mode of the projector, the driving unit moving the door assembly along the first direction from the second position to the first position to close the heat discharge opening in response to a second operation mode of the projector.