Projector

A projector that modulates light emitted from a light source and projects the modulated light, the projector comprising:

• an exterior housing forming an exterior of the projector;
• a first cooling target;
• and
• a cooling apparatus provided in the exterior housing and configured to cool the first cooling target,
• wherein the cooling apparatus includes
• a first tube, a second tube, a third tube, and a fourth tube,
• a first compressor configured to compress an operating fluid in a gas phase,
• a condenser coupled to the first compressor via the first tube and configured to condense the gas-phase operating fluid compressed by the first compressor into the operating fluid in a liquid phase,
• a first expander coupled to the condenser via the second tube and configured to decompress the liquid-phase operating fluid condensed by the condenser to change to the operating fluid in which the liquid phase and the gas phase are mixed with each other, and
• a first evaporator coupled to the first expander via the third tube, configured to change a portion of the liquid-phase operating fluid supplied from the first expander to the gas-phase operating fluid by using heat transferred from the first cooling target, and configured to discharge the gas-phase operating fluid to the first compressor coupled via the fourth tube.