Projector

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

• a first cooling target;
• a second cooling target;
• a cooling device configured to cool the first cooling target and the second cooling target;
• and
• an exterior housing accommodating the first cooling target, the second cooling target, and the cooling device, wherein
• the cooling device includes:
• a first pipe, a second pipe, a third pipe, a fourth pipe, a fifth pipe, a sixth pipe,
• a first compressor configured to compress a working fluid in a gas phase,
• a condenser coupled with the first compressor via the first pipe, and configured to condense the working fluid in a gas phase compressed by the first compressor into a working fluid in a liquid phase,
• a first expander coupled with the condenser via the second pipe, and configured to decompress a part of the working fluid condensed by the condenser to change the working fluid into a working fluid in a mixed phase of a liquid phase and a gas phase,
• a first evaporator coupled with the first expander via the third pipe, configured to change the working fluid in a liquid phase flowing from the first expander into the working fluid in a gas phase by using heat transferred from the first cooling target, and discharge the working fluid changed into a gas phase to the first compressor coupled with the first evaporator via the fourth pipe,
• a second expander coupled with the condenser via the second pipe, and configured to decompress the other part of the working fluid condensed by the condenser to change the working fluid into the working fluid in a mixed phase of a liquid phase and a gas phase,
• a second evaporator coupled with the second expander via the fifth pipe, and configured to change, into the working fluid in a gas phase, the working fluid in a liquid phase flowing from the second expander by using heat transferred from the second cooling target, and
• a second compressor coupled with the first compressor via the fourth pipe and coupled with the second evaporator via the sixth pipe, the second compressor being configured to compress the working fluid in a gas phase flowing from the second evaporator, and discharge the working fluid to the first compressor via the fourth pipe.