Device and method for producing a number of copies by
electrophotographic techniques
    1.
    发明授权
    Device and method for producing a number of copies by electrophotographic techniques 失效
    通过电子照相技术生产多份拷贝的装置和方法

    公开(公告)号:US4244646A

    公开(公告)日:1981-01-13

    申请号:US12003

    申请日:1979-02-14

    摘要: A device for electrophotographically copying wherein for writing a charge pattern into a suitable photo-conductive layer with differing electron mobility and hole mobility a relatively long wave length of light is used which has a penetration depth comparable with the thickness of the layer and which has a quantum energy which corresponds to the energy of deep traps for the less mobile kind of charge carriers. Due to the long life of the charge carriers in the deep traps, the newly applied charges of opposite polarity remain on the exposed locations for a relatively long time since the charge has been caught in the traps whereas the unexposed locations are repeatedly charged again to maintain an undisturbed potential such that the charge pattern is retained for a longer time even with continued exterior charging. So as to erase the charge pattern a correspondingly light beam of shorter wave length is utilized which has a penetration depth that is small relative to the thickness of layer so as to cause the deep traps to be quickly removed through recombination of charges.

    摘要翻译: 一种用于电子照相复制的装置,其中为了将电荷图案写入具有不同电子迁移率和空穴迁移率的合适的光导层中,使用相对长的波长的光,其具有与层的厚度相当的穿透深度,并且具有 量子能量对应于较小移动类型的载流子的深陷阱的能量。 由于深陷阱中的电荷载体寿命长,所以相反极性的新施加的电荷保持在暴露位置相当长的时间,因为电荷被捕获在陷阱中,而未暴露的位置被重新充电以维持 不受干扰的电位,使得即使持续的外部充电,电荷模式也保持较长时间。 为了擦除电荷图案,使用较短波长的对应的光束,其具有相对于层的厚度小的穿透深度,以便通过电荷的复合快速去除深陷阱。

    X-Ray electro-photographic recording material and method for generating
an electrical charge image in such material
    2.
    发明授权
    X-Ray electro-photographic recording material and method for generating an electrical charge image in such material 失效
    X射线电子照相记录材料和用于在这种材料中产生电荷图像的方法

    公开(公告)号:US4482619A

    公开(公告)日:1984-11-13

    申请号:US493808

    申请日:1983-05-12

    申请人: Eberhard Bayer

    发明人: Eberhard Bayer

    CPC分类号: G03G5/14 G03G5/08 Y10S430/168

    摘要: An x-ray electro-photographic recording material is formed of a photo-conductive layer (1) comprised of a selenium-arsenic alloy and positioned on a transparent electrode layer (4), which is positioned on a further layer (3) comprised of an x-ray luminophore and positioned on a reflective surface (2a) of a film carrier layer (2). In usage, with a positive corona charge on the free photo-conductive layer surface (1a) before x-ray exposure, the luminophore-containing layer (3), during x-ray exposure, converts a component (5) of the x-ray radiation (.gamma.) not absorbed by the photo-conductive layer (1) into visible luminescent light (6) which effects an increase of sensitivity in the photo-conductive layer (1). This recording material can be used in x-ray photograph devices.

    摘要翻译: X射线电子照相记录材料由包含硒 - 砷合金的光导电层(1)形成,并位于透明电极层(4)上,透明电极层(4)位于由 x射线发光体并且位于薄膜载体层(2)的反射表面(2a)上。 在使用中,在x射线曝光之前的自由光导电层表面(1a)上具有正的电晕电荷,在x射线曝光期间,含有发光体的层(3)将x- 不受光导电层(1)吸收的可见光发射光(6)的光线辐射(γ),其导致光导层(1)中的灵敏度增加。 该记录材料可用于X射线照相装置。

    Device for stabilizing and increasing contrast potential in an
electrophotographic copier
    3.
    发明授权
    Device for stabilizing and increasing contrast potential in an electrophotographic copier 失效
    用于在电子照相复印机中稳定和增加对比度电位的装置

    公开(公告)号:US4170413A

    公开(公告)日:1979-10-09

    申请号:US913700

    申请日:1978-06-08

    申请人: Eberhard Bayer

    发明人: Eberhard Bayer

    IPC分类号: G03B27/54 G03G21/08 G03G15/00

    CPC分类号: G03G21/08

    摘要: A device is disclosed which is useful in an electrophotographic copier for stabilizing and increasing contrast potential. The device is employed for extinguishing a recorded, electrostatic charge image. The device has one or more light sources which provide a spectral distribution comprising a first spectral range of maximum photoconductivity production and a radiation energy which is three to ten times a radiation energy present in a second spectral range. The second spectral range is located at a wavelength determined by a maximum of a product of photoconductivity production and penetration depth. An additional radiation energy distribution in remaining portions of the spectral distribution has a radiation energy not exceeding five to ten percent of the radiation energy of the first range.

    摘要翻译: 公开了一种在电子照相复印机中有用的用于稳定和增加对比度电位的装置。 该装置用于熄灭记录的静电荷图像。 该装置具有一个或多个光源,其提供包括最大光电导产生的第一光谱范围和为存在于第二光谱范围内的辐射能量的三到十倍的辐射能量的光谱分布。 第二光谱范围位于由光电导率产生和穿透深度的乘积的最大值确定的波长处。 在光谱分布的剩余部分中的另外的辐射能量分布具有不超过第一范围的辐射能量的5%至10%的辐射能量。