Dental x-ray film viewing device
    1.
    发明授权
    Dental x-ray film viewing device 失效
    牙科X光片查看装置

    公开(公告)号:US07431497B2

    公开(公告)日:2008-10-07

    申请号:US11527014

    申请日:2006-09-26

    IPC分类号: A61B6/14

    摘要: A dental x-ray film viewing device includes a film reader having a digital video camera and an image display screen connected to the video camera for displaying an enlarged digital image of the x-ray film using signals transmitted directly from the video camera. The film reader includes a film illumination station that has a back-lighted film seat. The film seat includes a translucent plate and a non-transparent film anchoring wafer having an opening complimentary to the x-ray film for seating the x-ray film, and blocking light in an area surrounding the x-ray film. The film reader has a video camera having lens thereof focusing on the film window, and the lens has a distortion at the full field less than 3%. The device provides a substantially enlarged high resolution and high contrast digital image as an accurate representation of the original x-ray film, without digital processing by a computer.

    摘要翻译: 牙科X光片观察装置包括具有数字摄像机的电影读取器和连接到摄像机的图像显示屏,用于使用直接从摄像机发送的信号显示X射线胶片的放大数字图像。 该电影阅读器包括一个具有背光胶片座的胶片照明台。 胶片座具有半透明板和非透明膜固定晶片,其具有与X射线胶片互补的开口,用于放置x射线胶片,并且阻挡在x射线胶片周围的区域内的光。 该电影读取器具有一个摄像机,其镜头集中在胶片窗口上,并且透镜在全场处的失真小于3%。 该装置提供了基本上放大的高分辨率和高对比度数字图像作为原始X射线胶片的精确表示,而不经计算机进行数字处理。