Optical system for imaging an electrophotographic member
    1.
    发明授权
    Optical system for imaging an electrophotographic member 失效
    用于对电子照相构件成像的光学系统

    公开(公告)号:US4493549A

    公开(公告)日:1985-01-15

    申请号:US538942

    申请日:1983-10-04

    摘要: A digital plate maker system to receive graphics and text data and selectively discharge incremental areas of a charged electrophotographic member to form thereon the latent images represented by the graphics and text data, the imaged member thereafter being toned and output from the system. Thereafter, the toned image may be fused on the member and the member being used in an offset lithographic printing press. The digital platemaker system includes an optical system which may form a maximum of 22 individual rays which are direct deflected twice through a field flattening lens and then onto the charged member. The optical system further includes an optical scale or grating which provides electrical signals indicating the precise location of the individual rays along scan lines on the member. The digital plate maker system further includes an electronic system which generates electrical signals to form the 22 individual rays. The text data is used to modulate signals produced by the graphics data, the result of the modulation being the beam control signals used to form the 22 individual rays. The digital plate maker system further includes a toning system which provides a vertical meniscus which is essentially stationary with the electrophotographic member as the electrophotographic member is rotated past the toning station.

    摘要翻译: 一种用于接收图形和文本数据并选择性地排出充电的电子照相构件的增量区域以在其上形成由图形和文本数据表示的潜像的数字印版制作系统,其后成像的构件被调色并从系统输出。 此后,调色图像可以熔合在构件和用于胶印平版印刷机中的构件上。 数字制版系统包括一个光学系统,其可以形成最多22个单独的光线,其直接偏转两次通过场平坦化透镜,然后到达带电部件。 光学系统还包括光标或光栅,其提供指示单个光线沿着该部件上的扫描线的精确位置的电信号。 数字印版制造系统还包括一个产生电信号以形成22个单独光线的电子系统。 文本数据用于调制由图形数据产生的信号,调制结果是用于形成22个单独光线的光束控制信号。 数字印版制造系统还包括调色系统,其提供垂直弯液面,当电子照相构件旋转经过调色台时,其垂直弯液面基本上与电子照相构件固定。

    Digital plate maker system and method
    2.
    发明授权
    Digital plate maker system and method 失效
    数码印版制版系统及方法

    公开(公告)号:US4504126A

    公开(公告)日:1985-03-12

    申请号:US538969

    申请日:1983-10-04

    摘要: Graphics and text data are combined selectively to discharge incremental areas of a charged electrophotographic member to form thereon a latent text and/or graphics image represented by the graphics and text data, the imaged member thereafter being toned and output from the system so that the toned image may be fused on the member and the member may be used as a printing plate in an offset lithographic printing press. The apparatus includes an optical system that may form a maximum of 22 individual rays which are deflected twice through a field flattening lens and then onto the charged member. The optical system further includes an optical scale or grating which provides electrical signals indicating the precise location of the individual rays along scan lines on the member. The apparatus further includes an electronic system which generates electrical signals from the graphics and text data to form the 22 individual rays. The text data is used to modulate signals produced by the graphics data, the result of the modulation being beam control signals used to form the 22 individual rays. The apparatus further includes a toning system that provides a vertical meniscus of toning fluid, the meniscus being essentially stationary with the electrophotographic member as the electrophotographic member is rotated past the toning station.

    摘要翻译: 图形和文本数据被选择性组合以排出充电的电子照相构件的增量区域,以在其上形成由图形和文本数据表示的潜在文本和/或图形图像,其后成像的构件被调色并从系统输出,使得调色 图像可以熔合在构件上,并且构件可以用作胶印平版印刷机中的印刷版。 该装置包括一个光学系统,该光学系统可以形成最多22个单独的光线,这些光线经过场平坦化透镜两次偏转,然后到达带电部件。 光学系统还包括光标或光栅,其提供指示单个光线沿着该部件上的扫描线的精确位置的电信号。 该装置还包括电子系统,其从图形和文本数据生成电信号以形成22个单独的光线。 文本数据用于调制由图形数据产生的信号,调制结果是用于形成22个单独光线的波束控制信号。 该设备还包括调色系统,其提供调色流体的垂直弯液面,当电子照相构件旋转经过调色台时,弯液面基本上与电子照相构件固定。

    Method and apparatus for half-tone reproduction of a varying tone
original image
    4.
    发明授权
    Method and apparatus for half-tone reproduction of a varying tone original image 失效
    改变色调原始图像的半色调再现方法和装置

    公开(公告)号:US4533941A

    公开(公告)日:1985-08-06

    申请号:US458167

    申请日:1983-01-14

    IPC分类号: H04N1/405 H04N1/52 H04N1/46

    CPC分类号: H04N1/52 H04N1/4058

    摘要: Sequential scanned scaled density data representing a varying tone image is electronically screened to form binary element data that when imaged to form an array of orthogonally arranged binary elements on a member produces screened color separation plates of that original image suitable for use as the printing plates in a lithographic printing press. Screening occurs by comparing sequential density data with selected screen matrix data contained in a memory. The matrix data is ordered with density values increasing outwardly from the matrix center to the corners and edges. The matrix data is selected from matrix locations related to the desired screen frequency and angle with the selected matrix locations being determined by the application of fundamental right triangle trigonometric relationships to the matrix. Screening and imaging occurs sequentially with two density data being compared to matrix data simultaneously. The binary elements of the several plates are produced in one pass across the surface of the member.

    摘要翻译: 代表变化色调图像的顺序扫描的缩放密度数据被电子屏蔽以形成二元元素数据,当成像以形成在成员上的正交布置的二进制元素的阵列时,产生适合用作印版的原始图像的筛选色分离板 平版印刷机。 通过将顺序密度数据与包含在存储器中的所选屏幕矩阵数据进行比较来进行筛选。 矩阵数据以从矩阵中心向角和边缘向外增加的密度值排序。 从与期望的屏幕频率相关的矩阵位置选择矩阵数据,并且通过将基本的直角三角三角关系应用于矩阵来确定所选择的矩阵位置。 筛选和成像依次与两个密度数据同时与矩阵数据进行比较。 几个板的二进制元件在穿过构件的表面的一次通过中产生。

    GEOMETRIC CORRECTION OF ROUGH WIREFRAME MODELS DERIVED FROM PHOTOGRAPHS
    5.
    发明申请
    GEOMETRIC CORRECTION OF ROUGH WIREFRAME MODELS DERIVED FROM PHOTOGRAPHS 有权
    从摄影中衍生出的粗糙线条模型的几何校正

    公开(公告)号:US20110187713A1

    公开(公告)日:2011-08-04

    申请号:US13019228

    申请日:2011-02-01

    IPC分类号: G06T17/00

    摘要: Geometric correction of rough wireframe models derived from photographs may include rectification of either a 2D or 3D original wireframe model of a roof structure, derivation of metadata from the original wireframe, in-plane normalization of the wireframe, extrusion into a “rough” 3D wireframe based on the normalized wireframe, and correction of the “rough” 3D wireframe. The correction and normalization may be an iterative process based on initial pitch values, metadata derived from the original or corrected wireframe models and defined constraints regarding relationships between roof portions or segments. The iterative process may repeat adjusting the wireframe model until the adjusting converges to a stable state according to the various defined constraints.

    摘要翻译: 从照片得到的粗略线框模型的几何校正可能包括校正屋顶结构的2D或3D原始线框模型,从原始线框导出元数据,线框架的平面内归一化,挤压成“粗略”3D线框 基于归一化的线框,以及“粗糙”3D线框的校正。 校正和归一化可以是基于初始间距值的迭代过程,来自原始或校正的线框模型的元数据以及关于屋顶部分或段之间的关系的限定的约束。 迭代过程可以重复调整线框模型,直到调整根据各种限定的约束收敛到稳定状态。

    Geometric correction of rough wireframe models derived from photographs

    公开(公告)号:US09911228B2

    公开(公告)日:2018-03-06

    申请号:US13019228

    申请日:2011-02-01

    IPC分类号: G06T17/20 G06T17/00 G06T19/20

    摘要: Geometric correction of rough wireframe models derived from photographs may include rectification of either a 2D or 3D original wireframe model of a roof structure, derivation of metadata from the original wireframe, in-plane normalization of the wireframe, extrusion into a “rough” 3D wireframe based on the normalized wireframe, and correction of the “rough” 3D wireframe. The correction and normalization may be an iterative process based on initial pitch values, metadata derived from the original or corrected wireframe models and defined constraints regarding relationships between roof portions or segments. The iterative process may repeat adjusting the wireframe model until the adjusting converges to a stable state according to the various defined constraints.