Patent ID: 11953815
Assignee: SEIKO EPSON CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 7:
8. A projector comprising:
a light source device;
an image projection device configured to modulate light emitted from the light source device to generate image light and project the image light;
a power supply device configured to supply electric power to the light source device and the image projection device;
a housing configured to house the light source device, the image projection device, and the power supply device;
a first supply fan configured to set at least one device of the light source device, the image projection device, and the power supply device as a cooling target and supply gas to the cooling target;
a second supply fan configured to supply the gas sucked from an outside of the housing to the first supply fan; and
a duct connecting the first supply fan to the second supply fan for circulating the gas supplied by the second supply fan to the first supply fan, a surface of the duct comprising a circulation port opened to an interior of the housing to circulate the gas from the duct to the interior of the housing, wherein
the first supply fan supplies the gas supplied by the second supply fan to the cooling target to cool the cooling target, and
one fan of the first supply fan and the second supply fan supplies a part of the sucked gas to an inside of the housing.