Patent ID: 7585077

Claim:
A projector comprising: a light source unit; an optical apparatus including, an optical device, a holding frame for holding a periphery of the optical device, and a cooling tube, which is provided in the holding frame along the periphery of the optical device and in which a cooling fluid flows, wherein the holding frame has a structure that a pair of frame members is oppositely provided so as to sandwich the cooling tube therebetween, a groove for housing the cooling tube is formed on each opposing surface of the pair of frame members, and the cooling tube is provided on a first member of the pair of frame members while a second frame member is formed by molding around the cooling tube from a material having a melting point lower than that of the cooling tube; a cooling unit for circulating the cooling fluid in the optical apparatus; and a projection optical apparatus for enlarging and projecting an optical image formed by means of the optical apparatus.