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US 11,531,255 B2Granted
Projector, projection optical device, and method of controlling projector
AssigneeSeiko Epson Corporation
InventorShinji Kubota
Life of this patent
Estimating the term…
Abstract
A projector includes a projector main body including an optical unit for generating an image light beam, and a projection optical device attached to a mounting part of the projector main body, and projecting the image light beam generated by the optical unit on a screen, a chassis of the projection optical device includes a camera attachment part to which a camera is attached, and an imaging range of the camera attached to the camera attachment part includes at least a part of a projection image projected by the projection optical device.
Claims18
A projector comprising:
- a projector main body including an optical unit configured to generate an image light beam;
- a projection optical device attached to a mounting part of the projector main body, and configured to project the image light beam generated by the optical unit on a projection surface;
- and
- a chassis of the projection optical device includes a first camera attachment to which a camera is attachable, wherein
- an imaging range of the camera when attached to the first camera attachment includes at least a part of a projection image projected by the projection optical device,
- the projection optical device includes a first projection optical device and a second projection optical device,
- the first projection optical device forms a first light path,
- the second projection optical device forms a second light path different from the first light path,
- the first projection optical device projects the image light beam in a first direction when the first projection optical device is attached to the projector main body, and
- the second projection optical device projects the image light beam in a second direction different from the first direction when the second projection optical device is attached to the projector main body.
7 more elements
A projection optical device comprising:
- an optical unit configured to generate an image light beam, and configured to project the image light beam generated by the optical unit on a projection surface;
- and
- a chassis of the projection optical device includes a camera attachment to which a camera is attachable, wherein
- the projection optical device is to be attached to a mounting part of a projector main body,
- an imaging range of the camera when attached to the camera attachment includes at least a part of a projection image projected by the projection optical device,
- the projection optical device includes a first projection optical device and a second projection optical device,
- the first projection optical device forms a first light path,
- the second projection optical device forms a second light path different from the first light path,
- the first projection optical device projects the image light beam in a first direction when the first projection optical device is attached to the projector main body, and
- the second projection optical device projects the image light beam in a second direction different from the first direction when the second projection optical device is attached to the projector main body.
7 more elements
A method of controlling a projector comprising:
- making a camera attached to a camera attachment of a chassis of a projection optical device take an image of a range including at least a part of a projection image projected by the projection optical device when the camera is attached to the camera attachment;
- and
- adjusting an image light projected from the projection optical device based on a taken image by the camera, wherein
- the projector including a projector main body including an optical unit configured to generate an image light beam, and the projection optical device attached to a mounting part of the projector main body, and configured to project the image light beam generated by the optical unit on a projection surface,
- the projection optical device includes a first projection optical device and a second projection optical device,
- the first projection optical device forms a first light path,
- the second projection optical device forms a second light path different from the first light path,
- the first projection optical device projects the image light beam in a first direction when the first projection optical device is attached to the projector main body, and
- the second projection optical device projects the image light beam in a second direction different from the first direction when the second projection optical device is attached to the projector main body.
6 more elements
Dependencies are inferred from the claim text.