PROJECTION SYSTEM AND CALIBRATION APPARATUS
    2.
    发明申请

    公开(公告)号:US20170264873A1

    公开(公告)日:2017-09-14

    申请号:US15452953

    申请日:2017-03-08

    Inventor: Fumio MURAMATSU

    CPC classification number: H04N9/3185 G03B21/28 H04N9/3194

    Abstract: A projection system includes a projection unit, an optical path change unit, a capture unit, and a controller. The projection unit emits projection light for displaying an image. The optical path change unit changes an optical path for the projection light and guides the projection light toward a prescribed projection surface. The capture unit captures a projection image that is projected onto the projection surface from the optical path change unit, based on the image. The controller calculates a first distance that is a length from the projection unit to the optical path change unit along the optical path and a second distance that is a length from the projection unit to the projection surface along a vertical direction, based on the captured image by the capture unit, and controls the projection image based on the first distance and the second distance that are calculated.

Patent Agency Ranking