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    • 6. 发明授权
    • Laminography system having a view selector with prism
    • Laminography系统具有带棱镜的视图选择器
    • US06222903B1
    • 2001-04-24
    • US09261494
    • 1999-03-03
    • Hyeong-cheol KimJong-eun ByunJin-young KimChang-hyo KimHyung Seok ChoKuk-won KoYoung-jun Roh
    • Hyeong-cheol KimJong-eun ByunJin-young KimChang-hyo KimHyung Seok ChoKuk-won KoYoung-jun Roh
    • A61B600
    • G01N23/04
    • A laminography system includes a table, an X-ray source, an image intensifier, a view selector and a camera. The view selector has a prism for refracting a ray of light, and an adjusting part for adjusting the prism to a position in which images at a certain area of an image projecting plane of the image intensifier are received into the camera. The adjusting part has a first motor for rotating the prism along the circumferential direction of the image intensifier, and a second motor for rotating the prism in a direction perpendicular with respect to a radial direction of the image intensifier. Accordingly, the images at any areas of the image projecting plane of the image intensifier can be obtained. In addition, since an optical axis of the image passing through the prism and then received into the camera is in perpendicular relation with the camera, no image distortions occur.
    • 层析系统包括桌子,X射线源,图像增强器,视图选择器和照相机。 视角选择器具有用于折射光线的棱镜和用于将棱镜调节到图像增强器的图像投影平面的特定区域的图像被接收到相机中的位置的调节部分。 调整部具有用于沿图像增强器的圆周方向旋转棱镜的第一电动机和用于使棱镜沿与图像增强器的径向垂直的方向旋转的第二电动机。 因此,可以获得图像增强器的图像投影平面的任何区域的图像。 此外,由于通过棱镜然后被接收到相机中的图像的光轴与相机垂直,所以不会发生图像失真。