Projector
A projector includes a cooler configured to cool a cooling target based on transformation of a refrigerant into a gas. The cooler includes a refrigerant generator and a refrigerant sender. The refrigerant generator includes a rotating moisture absorbing/discharging member, a first air blower configured to deliver air containing the refrigerant transformed into the gas at the cooling target to a first portion of the moisture absorbing/discharging member located in a first region, a heat exchanger connected to the refrigerant sender, and a second air blower configured to cool the heat exchanger. The air having passed through the first portion of the moisture absorbing/discharging member flows into the heat exchanger. Air exhausted from the heat exchanger is delivered to a second portion of the moisture absorbing/discharging member located in a second region different from the first region.
1. A projector including a cooling target, the projector comprising:
a light source configured to emit light;
a light modulator configured to modulate the light emitted from the light source in accordance with an image signal;
a projection optical apparatus configured to project the light modulated by the light modulator; and
a cooler configured to cool the cooling target based on transformation of a refrigerant into a gas,
wherein the cooler includes
a refrigerant generator configured to generate the refrigerant, and
a refrigerant sender configured to send the generated refrigerant toward the cooling target,
the refrigerant generator includes
a rotating moisture absorbing/discharging member,
a first air blower configured to deliver air containing the refrigerant transformed into the gas at the cooling target to a first portion of the moisture absorbing/discharging member which is a portion located in a first region,
a heat exchanger connected to the refrigerant sender, and
a second air blower configured to cool the heat exchanger,
the air after passing through the first portion of the moisture absorbing/discharging member flows into the heat exchanger, and
air exhausted from the heat exchanger is delivered to a second portion of the moisture absorbing/discharging member which is a portion located in a second region different from the first region.
2. The projector according to claim 1 ,
wherein the refrigerant generator includes a heater configured to heat the air before delivered to the first portion of the moisture absorbing/discharging member.
3. The projector according to claim 1 ,
wherein the first air blower delivers air to the cooling target and delivers the air after delivered to the cooling target to the first portion of the moisture absorbing/discharging member.
4. The projector according to claim 1 ,
wherein the air after exhausted from the heat exchanger and after passing through the second portion of the moisture absorbing/discharging member is delivered to the first portion of the moisture absorbing/discharging member.
5. The projector according to claim 1 ,
wherein the air exhausted from the heat exchanger passes multiple times through the second portion of the moisture absorbing/discharging member.
6. The projector according to claim 1 , further comprising
a power supply configured to supply the projector with electric power,
wherein air after cooling the power supply is delivered to the first portion of the moisture absorbing/discharging member.
7. The projector according to claim 1 ,
wherein the refrigerant generator includes
a thermoelectric device having a heat absorbing surface and a heat dissipating surface,
a first heat transfer member thermally connected to the heat absorbing surface, and
a second heat transfer member thermally connected to the heat dissipating surface,
the first heat transfer member cools the air delivered to the heat exchanger, and
the second heat transfer member heats the air before delivered to the first portion of the moisture absorbing/discharging member.
8. The projector according to claim 1 ,
wherein the cooling target is the light modulator.