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    Projection apparatus that performs rotation correction
    19.
    发明授权
    Projection apparatus that performs rotation correction 有权

    公开(公告)号：US12219296B2

    公开(公告)日：2025-02-04

    申请号：US17244602

    申请日：2021-04-29

    Applicant: FUJIFILM Corporation

    Inventor： Hitoshi Shimizu ,  Takeharu Omata ,  Kensuke Masui ,  Shoki Kasahara

    IPC: H04N9/31 ,  G03B21/14 ,  G03B21/28

    Abstract: A projection apparatus capable of, when an image input from an external device and an OSD image are rotated by rotation of a projection lens, performing rotation correction suitable for the respective images is provided. A projection apparatus (1) includes a housing; a projection lens (3) that has a holder and that is rotatably attached to the housing; a first rotation position detection unit (70A) and a second rotation position detection unit (70B) that detect rotation states of the holder; a DMD (22B) that outputs, to the projection lens (3), a composite image of a projection image output from an external device and an OSD image including a character output from an internal memory; and a control unit that performs rotation correction on the OSD image and that does not perform rotation correction on the projection image based on detection results of the first rotation position detection unit (70A) and the second rotation position detection unit (70B) when the holder of the projection lens (3) rotates.

    Projection apparatus
    20.
    发明授权
    Projection apparatus 有权

    公开(公告)号：US11871160B2

    公开(公告)日：2024-01-09

    申请号：US17243986

    申请日：2021-04-29

    Applicant: FUJIFILM Corporation

    Inventor： Hitoshi Shimizu ,  Takeharu Omata

    IPC: H04N9/31 ,  G03B21/14

    CPC classification number: H04N9/317 ,  G03B21/142 ,  H04N9/3185

    Abstract: A projection apparatus capable of appropriately performing shift control of a projection image when a posture or a projection direction of a projection lens is changed by rotating the projection lens is provided. A projection apparatus (1) includes a projection apparatus main body (2) that causes a DMD (22B) to emit a projection image; a projection lens (3) that projects the projection image emitted from the DMD (22B), the projection lens (3) including 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 projection apparatus main body (2), the third optical system being rotatable around a second rotation axis extending in a direction intersecting with the first rotation axis; a posture information acquisition unit that acquires posture information indicating a posture of the projection lens (3) with respect to the projection apparatus main body (2); a lens shift mechanism (80) that causes the projection lens (3) to move in a plane intersecting with an axial direction of the first rotation axis; and a control unit that controls the lens shift mechanism (80) based on the posture information acquired by the posture information acquisition unit to shift a projection image that is projected from the projection lens (3).

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