公开(公告)号：US4762998A

公开(公告)日：1988-08-09

申请号：US48709

申请日：1987-05-12

申请人： Anthony R. Lubinsky ,  James F. Owen ,  Donald M. Korn

发明人： Anthony R. Lubinsky ,  James F. Owen ,  Donald M. Korn

IPC分类号： G01T1/00 ,  A61B6/00 ,  G01T1/29 ,  G03B42/02 ,  G03C5/16 ,  H04N1/04 ,  H04N1/113 ,  H04N5/257 ,  H04N7/18

CPC分类号： G03C5/16 ,  G01T1/2014

摘要： An image recorded by a photostimulable phosphor image recording medium that is transparent (i.e. substantially non-scattering) to stimulating radiation is read out by scanning the stimulable phosphor with a beam of stimulating radiation of such power and at such a speed effective to completely discharge the photostimulable phosphor in a fraction of the beam spot diameter in the scanning direction, whereby the effective size of the scanning spot is smaller than the beam spot diameter, thereby increasing the resolution of the image signal in the scanning direction.

摘要翻译： 通过用这种功率的刺激辐射束扫描可刺激的荧光体，并且以有效的速度完全释放可透射（即基本上不散射）以刺激辐射的可光激发的磷光体图像记录介质记录的图像， 可光激发的荧光体在扫描方向上的光斑直径的一部分中，因此扫描光斑的有效尺寸小于光束光斑直径，从而增加了图像信号在扫描方向上的分辨率。

公开(公告)号：US5839369A

公开(公告)日：1998-11-24

申请号：US843522

申请日：1997-04-18

申请人： Dilip K. Chatterjee ,  Syamal K. Ghosh ,  Donald M. Korn

发明人： Dilip K. Chatterjee ,  Syamal K. Ghosh ,  Donald M. Korn

IPC分类号： B41C1/10

CPC分类号： B41C1/1041 ,  B41C1/1008 ,  B41C1/1033 ,  B41C2210/02 ,  B41C2210/04 ,  B41C2210/20 ,  Y10S430/146

摘要： Reusable lithographic printing members are prepared from a zirconia ceramic that is an alloy of ZrO.sub.2 and a second oxide chosen from MgO, CaO, Y.sub.2 O.sub.3, Sc.sub.2 O.sub.3, a rare earth oxide or a combination of any of these. In use, a printing surface of the zirconia alloy ceramic is imagewise exposed to electromagnetic radiation such as from a laser under controlled conditions to provide localized "melting" of the zirconia in the exposed areas. Those areas are transformed from a hydrophilic to an oleophilic state or from an oleophilic to a hydrophilic state, thereby creating a lithographic printing surface which is hydrophilic in non-image areas and is oleophilic and thus capable of accepting printing ink in image areas. Such inked areas can then be used to transfer an image to a suitable substrate in lithographic printing. The printing members are directly laser-imageable as well as image erasable, and can include printing plates, printing cylinders, printing tapes and printing sleeves.

摘要翻译： 可再利用的平版印刷构件由ZrO 2和选自MgO，CaO，Y 2 O 3，Sc 2 O 3，稀土氧化物或其任何组合的第二氧化物的合金的氧化锆陶瓷制备。 在使用中，氧化锆合金陶瓷的印刷表面在受控条件下成像地暴露于诸如激光的电磁辐射，以在暴露的区域中提供氧化锆的局部“熔化”。 这些区域从亲水性状态转变为亲油性状态或从亲油性状态转变为亲水状态，由此产生在非图像区域中亲水的亲和性并因此能够接受图像区域中的印刷油墨的平版印刷表面。 然后可以使用这样的油墨区域在平版印刷中将图像转印到合适的基底上。 印刷部件直接可激光成像，图像可擦除，可包括印版，印刷滚筒，印刷胶带和印刷套筒。

公开(公告)号：US4176275A

公开(公告)日：1979-11-27

申请号：US826369

申请日：1977-08-22

申请人： Donald M. Korn ,  Owen L. Nelson

发明人： Donald M. Korn ,  Owen L. Nelson

IPC分类号： G03G13/00 ,  G03G5/02 ,  G03G15/054 ,  H04N1/04 ,  H01J31/50

CPC分类号： G03G15/054

摘要： An imaging system and method in which a multi-layered device having a photoconductive insulative layer is utilized to provide an electrostatic charge image at a layer of the device in response to imaging radiation directed to the device. A scanner for scanning the device with readout radiation is used with readout electronics for converting the electrostatic charge image to electrical signals. A D.C. voltage source is used during the imaging step to impress an electric field across the device and is also used to provide an electric field across the device and support charge flow initiated by the readout radiation during the readout step. Devices using a fluid layer that absorbs x-rays to produce electrons and ions are used in the system with x-ray imaging radiation with a conductive layer that is associated with the fluid layer re-positioned closer to the photoconductive insulative layer after the electrostatic charge image has been formed.

摘要翻译： 一种成像系统和方法，其中利用具有光电导绝缘层的多层器件来响应于朝向该器件的成像辐射而在器件的一层提供静电荷图像。 用于用读出辐射扫描设备的扫描器与读出电子装置一起使用，用于将静电荷图像转换成电信号。 在成像步骤期间使用直流电压源来印刷器件上的电场，并且还用于在整个器件之间提供电场并支持在读出步骤期间由读出的辐射引发的电荷流。 使用吸收x射线以产生电子和离子的流体层的装置在具有X射线成像辐射的系统中使用，其中导电层与在静电电荷之后更靠近光电导绝缘层重新定位的流体层相关联 形象已经形成。

公开(公告)号：US5400147A

公开(公告)日：1995-03-21

申请号：US866389

申请日：1992-04-10

申请人： Donald M. Korn ,  Richard N. Blazey

发明人： Donald M. Korn ,  Richard N. Blazey

IPC分类号： B41J2/52 ,  B41M5/24 ,  G02B26/12 ,  G03B42/02 ,  H04N1/23 ,  H04N1/405 ,  G01D9/00 ,  G01D15/10

CPC分类号： B41M5/24 ,  H04N1/23

摘要： A multilevel halftone reproduction transparency medium and a method and system for reproducing images thereon. The transparency medium includes a substantially transparent carrier having first and second planar surfaces with ablative dye coatings thereon which are selected to render the medium substantially opaque in non-ablated areas, transparent in fully ablated areas, and semi-opaque in areas where one or the other of the coatings is ablated. A method and apparatus employ the medium to provide binary, trinary and quarternary gray levels in a hybrid halftone printing technique especially useful for printing radiographic images.

摘要翻译： 一种多层半色调再现透明度介质及其上再现图像的方法和系统。 透明介质包括具有第一和第二平面表面的基本上透明的载体，其上具有可消除染料的涂层，其被选择为使介质在非烧蚀区域基本上不透明，在完全烧蚀区域中是透明的，并且在不透明的区域中， 其他涂层被烧蚀。 一种采用该介质的方法和装置，在混合半色调打印技术中提供特别适用于打印放射照相图像的二进制，三维和四分之一灰度级。