Patent ID: 8348433
Filing Date: 2013-01-08
Classification: G03B

Abstract:
1. A liquid-cooling device configured to cool down an optical element in a projector using cooling liquid, comprising: an optical element holding member that is constructed to allow cooling liquid to flow in and out and holds the optical element so as to transfer heat to the cooling liquid; a liquid pumping unit configured to circulate cooling liquid; a liquid storage unit that is constructed to allow cooling liquid to flow in and out and temporarily stores cooling liquid therein; a heat exchange section that is constructed to allow cooling liquid to flow in and out and exchanges heat with the cooling liquid; a plurality of liquid circulation members configured to connect the optical element holding member, the liquid pumping unit, the liquid storage unit, and the heat exchange section and define a flow channel of the cooling liquid, wherein the liquid pumping unit, the liquid storage unit, the heat exchange section, and the optical element holding member are arranged along a circulation direction of the cooling liquid along the flow channel such that the cooling liquid flows in order through the liquid pumping unit, then through the liquid storage unit, then through the heat exchange section, and subsequently through the optical element holding member.