Electron beam apparatus and image-forming apparatus
    28.
    发明授权
    Electron beam apparatus and image-forming apparatus 失效
    电子束装置和图像形成装置

    公开(公告)号:US06459207B1

    公开(公告)日:2002-10-01

    申请号:US09514596

    申请日:2000-02-28

    IPC分类号: G09G310

    摘要: In an electron beam apparatus comprising an enclosure in which an electron-emitting device having an electron-emitting region between opposite electrodes is disposed, the electron-emitting device exhibits such a characteristic as that an emission current is uniquely determined with respect to a device voltage. The interior of the enclosure is maintained under an atmosphere effective to prevent structural changes of the electron-emitting device. An image-forming apparatus comprises an enclosure in which an electron source and an image-forming member are disposed, the electron source comprising the above electron-emitting device. An emission current is stable with a very small change in the amount of electrons emitted, a sharp image is produced with high contrast, and gradation control is easily carried out.

    摘要翻译: 在包括其中设置有在相对电极之间具有电子发射区域的电子发射器件的外壳的电子束装置中,电子发射器件具有如下特征:发射电流相对于器件电压唯一地确定 。 外壳的内部保持在有效地防止电子发射装置的结构变化的气氛下。 图像形成装置包括其中设置有电子源和图像形成部件的外壳,电子源包括上述电子发射器件。 发射电流稳定,发射的电子量变化非常小,以高对比度产生清晰的图像,容易进行灰度控制。