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1. 发明授权

US5858589A Intensity modulated stochastic screening for preparing a lithographic printing plate 失效
标题翻译：强度调制随机筛选制备平版印刷版
公开(公告)号：US5858589A
公开(公告)日：1999-01-12
申请号：US618679
申请日：1996-03-20
申请人： Rene Govaert , Paul Delabastita , Jacobus Bosschaerts
发明人： Rene Govaert , Paul Delabastita , Jacobus Bosschaerts
IPC分类号： B41C1/00 , B41C1/10 , B41N1/02 , G03F5/00 , G03F7/07 , H04N1/405 , G03F7/20
CPC分类号： G03F7/07 , B41C1/1083 , H04N1/4051
摘要： A method for making a lithographic printing plate from an original containing multiple tones comprising the steps of frequency modulation screening the multiple image to obtain screened data representing tones of the multiple tone image in terms of halftone dots; reproducing the halftone dots on a lithographic printing plate precursor having a surface capable of being differentiated in ink accepting and ink repellant areas upon scanwise exposure and an optional development step, by means of a scanwise exposure, wherein the scanwise exposure for rendering a halftone dot is intensity modulated.
摘要翻译：一种从包含多个色调的原稿制作平版印刷版的方法，包括以下步骤：对所述多个图像进行频率调制筛选以获得表示所述多色调图像的色调的筛选数据; 通过扫描曝光在平版印刷版原版上再现半色调点，该平版印刷版原版具有在扫描曝光和可选显影步骤时具有能够在接受油墨和拒墨区域中区分的表面的平版印刷版，其中用于渲染半色调点的扫描曝光是强度调制。

2. 发明授权

US5700610A Time modulated stochastic screening 失效
标题翻译：时间调制随机筛选
公开(公告)号：US5700610A
公开(公告)日：1997-12-23
申请号：US618681
申请日：1996-03-20
申请人： Jacobus Bosschaerts , Rene Govaert , Paul Delabastita
发明人： Jacobus Bosschaerts , Rene Govaert , Paul Delabastita
IPC分类号： B41C1/00 , B41N1/02 , G03F5/00 , G03F7/07 , H04N1/405 , G03C5/08 , G03F7/20
CPC分类号： G03F7/07 , H04N1/4051
摘要： A method for generating a screened reproduction of a multiple tone image comprising the steps of frequency modulation screening the multiple tone image to obtain screened data representing tones of the multiple tone image in terms of halftone dots, reproducing the halftone dots on an imaging element by means of a scanwise exposure, characterized in that the scanwise exposure for rendering a halftone dot is time modulated.
摘要翻译：一种用于产生多色调图像的屏蔽再现的方法，包括以下步骤：对所述多色调图像进行频率调制筛选，以获得表示所述多色调图像的色调的屏幕数据，以半色调点为基准，通过装置再现成像元件上的半色调点的扫描曝光，其特征在于用于渲染半色调点的扫描曝光被时间调制。

3. 发明授权

US5677093A Size modulated stochastic screening 失效
标题翻译：大小调制随机筛选
公开(公告)号：US5677093A
公开(公告)日：1997-10-14
申请号：US618680
申请日：1996-03-20
申请人： Paul Delabastita , Jacobus Bosschaerts , Rene Govaert
发明人： Paul Delabastita , Jacobus Bosschaerts , Rene Govaert
IPC分类号： B41C1/00 , B41C1/10 , B41N1/02 , G03F5/00 , G03F7/07 , H04N1/405 , G03F7/20
CPC分类号： B41C1/1083 , G03F7/07 , H04N1/4051
摘要： A method for generating a screened reproduction of a multiple tone image comprises the steps of frequency modulation or stochastic screening the multiple image to obtain screened data representing tones of the multiple tone image in terms of halftone dots; reproducing the halftone dots on an imaging element by means of a scanwise exposure, wherein the size or composition of the halftone dot is modulated, by varying the number of microdots (or rels) composing a halftone dot.
摘要翻译：用于产生多色调图像的屏蔽再现的方法包括频率调制或随机筛选多个图像以获得表示以色调点为基础的多色调图像的色调的屏幕数据的步骤; 通过扫描曝光在成像元件上再现半色调点，其中通过改变构成半色调点的微点数（或相关度）来调制半色调点的大小或组成。

4. 发明授权

US5783356A Halftone reproduction by single spot multibeam laser recording 失效
标题翻译：通过单点多波束激光记录进行半色调再现
公开(公告)号：US5783356A
公开(公告)日：1998-07-21
申请号：US812451
申请日：1997-03-06
申请人： Jacobus Bosschaerts , Robert Overmeer , Paul Delabastita , Johan Van Hunsel
发明人： Jacobus Bosschaerts , Robert Overmeer , Paul Delabastita , Johan Van Hunsel
IPC分类号： G03F7/07 , G03F7/20 , H04N1/40 , G03F7/22
CPC分类号： G03F7/2053 , G03F7/07 , H04N1/40037 , Y10S430/146
摘要： A method for generating a screened reproduction of a contone image comprises the steps of screening the contone image to obtain screened data representative for tones of the contone image and suitable for driving exposure of microdots on a radiation sensitive imaging element; exposing the microdots according to the screened data by at least one set or plurality (p) of radiation beams (b), characterized in that at a point in time (t) at least two radiation beams of the set of radiation beams impinge on a particular microdot (m) of a scanline (l). In particular is described a method for making a lithographic printing plate comprising the abovementioned steps.
摘要翻译：用于产生连续色调图像的屏蔽再现的方法包括以下步骤：筛选连续色调图像以获得表示连续色调图像的色调的屏幕数据，并且适合于在辐射敏感成像元件上驱动微点的曝光; 根据所筛选的数据通过至少一组或多个（p）辐射束（b）暴露微点，其特征在于，在所述一组辐射束中的至少两个辐射束撞击在扫描线（1）的特定微点（m）。特别是描述了一种制备包含上述步骤的平版印刷版的方法。

5. 发明授权

US06376138B1 Rendering of continuous tone images by reducing clustering of halftone dots 失效
标题翻译：通过减少半色调点聚类来渲染连续色调图像
公开(公告)号：US06376138B1
公开(公告)日：2002-04-23
申请号：US09169587
申请日：1998-10-09
申请人： Bart Horsten , Paul Delabastita , Jacobus Bosschaerts , Luc Schellekens
发明人： Bart Horsten , Paul Delabastita , Jacobus Bosschaerts , Luc Schellekens
IPC分类号： G03C508
CPC分类号： H04N1/4051 , B41M5/26 , G03C1/4989 , G03F5/00
摘要： Growth and clustering of halftone dots is a drawback in the reproduction of halftoned continuous tone images on prior art recording materials. Certain thermographic materials show a local microdot shrink effect called negative cross-talk upon neighboring microdots when exposing a microdot. Exposing these materials according to the frequency modulated halftone data of an image results in better tone rendering and lower noise due to lower dot clustering or negative cross-talk characteristics.
摘要翻译：半色调点的生长和聚集是在现有技术记录材料上再现半色调连续色调图像的缺点。当暴露微点时，某些热成像材料显示当地的微点收缩效应，称为相邻微点上的负串扰。根据图像的频率调制半色调数据曝光这些材料会导致更好的色调渲染，并且由于较低的点聚类或负串扰特性导致较低的噪声。

6. 发明授权

US5884013A Autotypical screening with optimised dotshape 失效
标题翻译：自动特征筛选，优化点形
公开(公告)号：US5884013A
公开(公告)日：1999-03-16
申请号：US747940
申请日：1996-11-12
申请人： Jacobus Bosschaerts , Johan Vanhunsel , Jan Van Cauwenberge , Paul Delabastita
发明人： Jacobus Bosschaerts , Johan Vanhunsel , Jan Van Cauwenberge , Paul Delabastita
IPC分类号： B41J2/52 , G03F5/00 , G03F7/07 , G06T5/00 , H04N1/405 , H04N1/52 , G06K15/02 , H04N1/23
CPC分类号： H04N1/4055
摘要： A method for generating a screened reproduction of a multiple tone image comprises the steps of autotypical or amplitude modulation screening the multiple tone image to obtain screened data representing tones of the multiple tone image in terms of halftone dots; reproducing the halftone dots on an imaging element by means of a scan-wise exposure by means of a laser or a LED, wherein in extreme regions of the tone scale the shape of the halftone dots is compact, characterized in that the halftone dots have a ratio of peripheral length to surface area which is minimal.
摘要翻译：一种用于产生多色调图像的屏蔽再现的方法包括以下步骤：自动特征或幅度调制屏蔽多色调图像，以获得表示以色调点为基础的多色调图像色调的屏幕数据; 通过借助于激光或LED的扫描式曝光在成像元件上再现半色调点，其中在色阶的极端区域中，网版点的形状是紧凑的，其特征在于，网版点具有周边长度与表面积的比值最小。

7. 发明授权

US5635321A Method for preparing a lithographic printing plate 失效
标题翻译：平版印刷版的制备方法
公开(公告)号：US5635321A
公开(公告)日：1997-06-03
申请号：US554855
申请日：1995-11-07
申请人： Johan Van Hunsel , Jacobus Bosschaerts
发明人： Johan Van Hunsel , Jacobus Bosschaerts
IPC分类号： B41C1/055 , G03F7/07 , G03F7/20 , H04N1/047 , H04N1/10 , H04N1/113 , G03C8/32 , G03C5/08
CPC分类号： G03F7/2055 , H04N1/047 , H04N1/1008 , H04N1/1135 , H04N2201/04729 , H04N2201/04789 , H04N2201/04791
摘要： A modulated writing light beam (18) having a wavelength to which an imaging element (33) is sensitive and a reference light beam (46) having a wavelength to which the imaging element (33) is insensitive are generated and simultaneously directed to a moving optical device (22) to cause the writing light beam (18) to scan across the surface of the imaging element (33) in a first scanning direction (C) and the reference light beam (46) to scan across the surface of a light detecting element (50) in the first scanning direction (C) to generate signals indicative of the position of the writing light beam (18) on the surface of the imaging element (33). The writing light beam (18) is modulated and the imaging element (33) is moved in a second scanning direction (B) in response to the signals generated by the light detecting element (50). Thereafter the exposed imaging element (33) is processed to prepare a lithographic printing plate. The invention is applicable to both positive and negative imaging working systems.
摘要翻译：产生具有成像元件（33）敏感的波长的调制写入光束（18）和具有成像元件（33）不敏感的波长的参考光束（46），同时指向移动光学装置（22），以使写入光束（18）沿第一扫描方向（C）跨越成像元件（33）的表面扫描并且参考光束（46）扫过光的表面检测元件（50）沿第一扫描方向（C）产生指示成像元件（33）的表面上的书写光束（18）的位置的信号。响应于由光检测元件（50）产生的信号，调制写入光束（18）并且成像元件（33）在第二扫描方向（B）上移动。此后，对曝光的成像元件（33）进行处理以制备平版印刷版。本发明适用于正，负成像工作系统。

8. 发明授权

US5968714A Sensitivity-increasing recording process for a photosensitive thermally developable photographic material 失效
标题翻译：用于光敏热显影照相材料的敏感度增加记录方法
公开(公告)号：US5968714A
公开(公告)日：1999-10-19
申请号：US924523
申请日：1997-09-05
申请人： Luc Leenders , Jacobus Bosschaerts , Robert Overmeer , Eddie Daems , Leo Oelbrandt , Hans Strijckers , Thomas Zehetmaier , Jurgen Muller , Friedrich Stumpf , Gerald Halbedl
发明人： Luc Leenders , Jacobus Bosschaerts , Robert Overmeer , Eddie Daems , Leo Oelbrandt , Hans Strijckers , Thomas Zehetmaier , Jurgen Muller , Friedrich Stumpf , Gerald Halbedl
IPC分类号： G03C1/20 , G03C1/498 , G03C5/26 , G03C5/29
CPC分类号： G03C1/49845 , G03C1/49881 , G03C1/20 , G03C1/4989
摘要： A recording process comprising the steps of: information-wise exposing to radiation a photosensitive thermally developable photographic material, thereby producing a latent image; and heating the photosensitive thermally developable photographic material, characterized in that the photosensitive thermally developable photographic material is on one and the same holding or guiding means during both the information-wise exposure step and the heating step; and the information-wise exposure step is carried out during the heating step; and a method of increasing the photosensitivity of a photosensitive thermally developable photographic material.
摘要翻译：一种记录方法，包括以下步骤：信息地将光敏热显影照相材料曝光于辐射，从而产生潜像; 并且加热感光热显影照相材料，其特征在于，在信息曝光步骤和加热步骤期间，光敏热显影照相材料在同一个保持或引导装置上; 并且在加热步骤期间执行信息曝光步骤; 以及增加光敏热显影照相材料的光敏性的方法。

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