Optical device and projector

摘要

An optical device ( 44 ) includes fluid circulating member link sections ( 446 ) that can link a plurality of fluid circulating members ( 448 ). The fluid circulating member link sections ( 446 ) are arranged respectively between a main tank ( 445 ) and an optical device main body ( 440 ) and between a radiator ( 447 ) and the optical device main body ( 440 ) to allow the optical device main body ( 440 ) to be fitted to and removed from the main tank ( 445 ) and the radiator ( 447 ).