Patent ID: 11871160
Assignee: FUJIFILM CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 17:
18. A projection apparatus comprising:
a main body section that has an electro-optical element and that causes the electro-optical element to emit a projection image;
a projection lens that projects the projection image emitted from the electro-optical element, the projection lens comprising a second optical system and a third optical system, the second optical system being provided rotatably around a first rotation axis with respect to the main body section, the third optical system being rotatable around a second rotation axis extending in a direction intersecting with the first rotation axis;
a first detection unit that detects a rotation state of the second optical system when the second optical system has been rotated around the first rotation axis;
a second detection unit that detects a rotation state of the third optical system when the third optical system has been rotated around the second rotation axis;
a third detection unit that detects a direction of the main body section with respect to gravity;
a shift unit that relatively shifts the electro-optical element and the projection lens in a plane intersecting with an axial direction of the first rotation axis; and
a control unit that causes the shift unit to shift a projection image that is projected from the projection lens based on the rotation state of the second optical system detected by the first detection unit, the rotation state of the third optical system detected by the second detection unit, and the direction of the main body section with respect to the gravity detected by the third detection unit,
wherein the control unit causes shift amounts of the projection image in two postures to be different from each other, the two postures having an equivalent rotation state of the second optical system, an equivalent rotation state of the third optical system, and different directions of the main body section with respect to the gravity.