Patent ID: 11921408
Assignee: SEIKO EPSON CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A projection device comprising:
a light source unit;
an image formation unit;
a projection optical unit; and
a housing which has a first surface and a second surface opposed to each other, a third surface and a fourth surface which cross the first surface and the second surface, and are opposed to each other, a fifth surface and a sixth surface which cross the first surface, the second surface, the third surface and the fourth surface, and are opposed to each other, and is configured to house the light source unit, the image formation unit, and the projection optical unit, wherein
defining a perpendicular direction of the first surface and the second surface as a height direction of the housing, a perpendicular direction of the third surface and the fourth surface as a width direction of the housing, and a perpendicular direction of the fifth surface and the sixth surface as a length direction of the housing,
a length of the length direction of the housing is longer than a length of the width direction of the housing,
an image light exits from the projection optical unit toward the fourth surface side,
the first surface includes a first region, and a second region lower in height from the second surface than the first region,
the first region is located between the third surface side, the fifth surface side, and the sixth surface side with respect to the second region such that the first region surrounds the second region on a third surface side of the second region, a fifth surface side of the second region, and a sixth surface side of the second region,
the second region is continuous to the fourth surface, and
a receiving part, on which a suspending attachment is mounted, is disposed in the second region.