Three-dimensional shape measuring method and three-dimensional shape measuring device

    公开(公告)号:US11610324B2

    公开(公告)日:2023-03-21

    申请号:US17469998

    申请日:2021-09-09

    摘要: A three-dimensional shape measuring method includes: projecting a first grid pattern based on a first light and a second grid pattern based on a second light onto a target object in such a way that the first grid pattern and the second grid pattern intersect each other, the first light and the second light being lights of two colors included in three primary colors of light; picking up, by a three-color camera, an image of the first grid pattern and the second grid pattern projected on the target object, and acquiring a first picked-up image based on the first light and a second picked-up image based on the second light; and performing a phase analysis of a grid image with respect to at least one of the first picked-up image and the second picked-up image and calculating height information of the target object.

    Projector and method for controlling projector
    9.
    发明授权
    Projector and method for controlling projector 有权
    投影机和控制投影机的方法

    公开(公告)号:US09154754B2

    公开(公告)日:2015-10-06

    申请号:US13945058

    申请日:2013-07-18

    摘要: A projector including a first light source, a second light source that emits light having a color different from the first light source, a light modulator that modulates the light emitted from each of the first and the second light sources, and a controller that controls a first operation state in which the first and the second light sources are driven based on time division driving to perform image display and a second operation state in which the first and the second light sources are driven based on time division driving to perform illumination, wherein in the second operation state, a switching frequency at which the first and the second light sources are switched from one to the other is higher than a switching frequency at which the first and the second light sources are switched from one to the other in the first operation state.

    摘要翻译: 一种投影仪,包括第一光源,发射具有与第一光源不同的颜色的光的第二光源,调制从第一和第二光源中的每一个发射的光的光调制器,以及控制器 第一操作状态,其中基于时分驱动来驱动第一和第二光源以执行图像显示;以及第二操作状态,其中基于时分驱动来驱动第一和第二光源以执行照明,其中, 第二操作状态,将第一和第二光源从一个切换到另一个光源的切换频率高于在第一操作中第一和第二光源从一个切换到另一个的切换频率 州。