Photoelectric conversion apparatus, driving method and x-ray image pickup apparatus using the same
    1.
    发明授权
    Photoelectric conversion apparatus, driving method and x-ray image pickup apparatus using the same 失效
    光电转换装置,驱动方法和使用其的x射线摄像装置

    公开(公告)号:US06476867B1

    公开(公告)日:2002-11-05

    申请号:US08717628

    申请日:1996-09-23

    IPC分类号: H04N5335

    CPC分类号: H04N5/32

    摘要: In order to realize a photoelectric conversion apparatus capable of easily switching a mode requiring a wide dynamic range in obtaining a motion image and a mode requiring a reduction in noise in obtaining a still image, a mode switching means is used, when a refresh operation is performed for each photoelectric conversion element, to switch between a mode of setting the potential of one electrode of the photoelectric conversion element to be higher than the potential of the other electrode, and a mode of setting the potential of one electrode of the photoelectric conversion element to be lower than the potential of the other electrode, thereby arbitrarily changing the refresh voltage. With this operation, desired photoelectric conversion signals for a motion image and a still image can be obtained.

    摘要翻译: 为了实现能够容易地切换在获得运动图像时需要宽动态范围的模式的光电转换装置以及在获得静止图像时需要降低噪声的模式,则使用模式切换装置,当刷新操作为 对于每个光电转换元件执行,以在将光电转换元件的一个电极的电位设置为高于另一个电极的电位的模式之间切换,以及设置光电转换元件的一个电极的电位的模式 低于另一个电极的电位,从而任意地改变刷新电压。 通过该操作,可以获得用于运动图像和静止图像的期望的光电转换信号。

    X-ray image pickup device
    7.
    发明授权
    X-ray image pickup device 失效
    X射线摄像装置

    公开(公告)号:US6118851A

    公开(公告)日:2000-09-12

    申请号:US102057

    申请日:1998-06-22

    摘要: An X-ray image pickup device has a two-dimensional image reading device which is constituted by two-dimensionally forming a plurality of photoelectric conversion elements on an insulating substrate, and has switching elements in the vicinities of these photoelectric conversion elements, a phosphor which is formed on the two-dimensional image reading device and serves as a wavelength converter for converting X-ray radiation into visible light, and a grid plate which is formed on the phosphor and guides only X-rays from a specific direction toward the phosphor and the two-dimensional image reading device, whereby a next-generation X-ray image pickup device which can improve diagnostic efficiency that cannot be attained by the conventional film method, and has a high space factor and a high S/N ratio that cannot be attained by the CCD method can be provided.

    摘要翻译: X射线摄像装置具有二维图像读取装置,其在绝缘基板上二维地形成多个光电转换元件,并具有这些光电转换元件附近的开关元件,荧光体 形成在二维图像读取装置上并且用作将X射线辐射转换为可见光的波长转换器,以及形成在荧光体上并仅将X射线从特定方向引导到荧光体的格栅板, 二维图像读取装置,由此能够提高通过以往的薄膜方法无法达到的诊断效率,并且具有高空间因子和高S / N比的下一代X射线摄像装置 可以提供通过CCD方法获得的。