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1241 条记录 (耗时 0.023 秒)

    Clustered dot and line multilevel halftoning for electrographic color printing
    51.
    发明授权
    Clustered dot and line multilevel halftoning for electrographic color printing 失效

    公开(公告)号：US5982989A

    公开(公告)日：1999-11-09

    申请号：US799335

    申请日：1997-02-13

    申请人： Dirk Broddin ,  Frank Deschuytere

    发明人： Dirk Broddin ,  Frank Deschuytere

    IPC分类号： B41J2/52 ,  G03G15/01 ,  H04N1/40 ,  H04N1/46

    CPC分类号： H04N1/40087

    摘要： A method is disclosed for rendering monochrome or colored continuous tone images by a system having restricted continuous tone rendering capabilities, such as electrographic printers capable of printing more than two density levels on each addressable micro dot. A method for preferred halftone dot growth is described, starting from isolated dots arranged along base lines and auxiliary lines, evolving to high density lines along the base lines and approximating full continuous tone rendition for high density regions. Preferred arrangements for the orientation, spacing and absolute location of the base lines and auxiliary lines are disclosed and a method to generate preferred arrangements. A moire free combination of three halftone images is described for the reproduction of color images. A method to select a restricted set of energy levels to obtain linear reflectance response is disclosed. Halftone cells are arranged in supercells to improve the density resolution of the system.

    Photothermographic processing system
    53.
    发明授权
    Photothermographic processing system 失效
    光热处理系统

    公开(公告)号：US5965331A

    公开(公告)日：1999-10-12

    申请号：US883503

    申请日：1997-06-26

    申请人： Leo Oelbrandt ,  Karl Anthonissen ,  Marc De Niel ,  Martin De Kegelaer

    发明人： Leo Oelbrandt ,  Karl Anthonissen ,  Marc De Niel ,  Martin De Kegelaer

    IPC分类号： G03B27/30 ,  G03D13/00 ,  G03C5/16 ,  G03C1/498

    CPC分类号： G03D13/002 ,  G03B27/306

    摘要： An apparatus and a method for bringing a thermographic imaging element (11) to a desired temperature by means of thermal contact with a heating body (10, 30) which is at least filled with an accessory material in a first phase (15) and with said accessory material in a second phase (16) comprise pressure setting means (17, 18) for setting a desired pressure, energy means (19) for exchanging thermal energy with said heating body, detection means for detecting a phase or a phase transition of said accessory material, and relocation means for bringing said imaging element into contact with said heating body.

    摘要翻译： 一种用于通过与第一阶段（15）中至少填充有辅助材料的加热体（10,30）的热接触将热敏成像元件（11）带到所需温度的装置和方法，并且 所述辅助材料在第二阶段（16）中包括用于设定所需压力的压力设定装置（17,18），用于与所述加热体交换热能的能量装置（19），用于检测相位或相变的检测装置 所述辅助材料和用于使所述成像元件与所述加热体接触的重新定位装置。

    Photographic silver halide material for mammography
    54.
    发明授权
    Photographic silver halide material for mammography 失效
    用于乳腺摄影的摄影卤化银材料

    公开(公告)号：US5965318A

    公开(公告)日：1999-10-12

    申请号：US50020

    申请日：1998-03-30

    申请人： Rudy Goedeweeck ,  Guy Vastenaeken ,  Luc Heremans ,  Kathy Elst

    发明人： Rudy Goedeweeck ,  Guy Vastenaeken ,  Luc Heremans ,  Kathy Elst

    IPC分类号： G03C5/17 ,  G03C1/00 ,  G03C1/46 ,  G03C5/16 ,  G03C1/035

    CPC分类号： G03C1/46 ,  G03C5/16 ,  G03C2200/58 ,  Y10S430/167

    摘要： A photographic silver halide material and a method using said material for mammography are disclosed. The photographic material has a large dynamic range and a high contrast, so that lesions deep in the glandular tissue are accurately detected, and also clearly depicts thin tissue such as the skin line of the breast. The sensitometric curve of optical density versus logarithmic exposure logE of said photographic material is characterised by (i) an average gradation of at least 3.5 between Dmin+1.0 and Dmin+2.5; and (ii) a local gradient ranging from 0.7 to 1.8 and an optical density not higher than 3.5 at the point where logE equals SP+0.8 (SP being defined as the logE at which the optical density equals Dmin+1.0); and (iii) an optical density of at least 3.7 at the point where logE equals SP+1.3.

    摘要翻译： 公开了一种照相卤化银材料和使用所述用于乳腺摄影的材料的方法。 照相材料具有较大的动态范围和较高的对比度，从而可以精确地检测出腺体组织深处的病变，并且还清楚地描绘了薄组织，如乳房的皮肤线。 所述照相材料的光密度与对数暴露logE的感光度曲线的特征在于（i）Dmin + 1.0和Dmin + 2.5之间的平均灰度至少为3.5; 和（ii）在logE等于SP + 0.8（SP定义为光密度等于Dmin + 1.0的logE）的点处，0.7至1.8的局部梯度和不高于3.5的光密度; 和（iii）在logE等于SP + 1.3的点处的光密度至少为3.7。

    Lightproof package of photosensitive strip material
    56.
    发明授权
    Lightproof package of photosensitive strip material 失效
    感光条材料的防光包装

    公开(公告)号：US5941387A

    公开(公告)日：1999-08-24

    申请号：US579639

    申请日：1995-12-27

    申请人： Heinz Rasel

    发明人： Heinz Rasel

    IPC分类号： B65D85/672 ,  G03C3/00 ,  B65D85/67

    CPC分类号： G03C3/00 ,  B65D85/672

    摘要： A lightproof package of photographic strip material, which is wound around a core and forms a hollow-cylinder film roll, its outer circumferential surface enclosed by a cover sheet, its inner circumferential surface enclosed by the core, and its end faces enclosed by thin-walled end caps, so that the packaging does not essentially change the outer dimensions of the existing film roll. The photographic material is not inadvertently exposed when the film roll is partially unwound for use and placed into an operating device under daylight conditions.

    摘要翻译： 一种照相条材料的防光包装，其卷绕在芯上并形成中空圆筒膜卷，其外圆周表面由盖片包围，其内圆周表面由芯包围，其端面由薄壁包围， 使得包装基本上不改变现有薄膜卷的外部尺寸。 当胶片卷部分退绕使用并在日光条件下放置在操作装置中时，照相材料不会被无意地暴露。

    Device for discharging powder contained in a bag
    57.
    发明授权
    Device for discharging powder contained in a bag 失效
    用于排出包含在袋中的粉末的装置

    公开(公告)号：US5927352A

    公开(公告)日：1999-07-27

    申请号：US74327

    申请日：1998-05-07

    申请人： Paul Wouters ,  Patrick Van den Bergen

    发明人： Paul Wouters ,  Patrick Van den Bergen

    IPC分类号： G03C5/26 ,  B65B69/00 ,  G03D3/06 ,  B65B1/04 ,  B65B3/04

    CPC分类号： B65B69/0008

    摘要： The device comprises a housing (10) having a powder inlet opening (12) in an upper face (13) thereof. A dust shield (14) upstands from the upper face (13) adjacent said powder inlet opening (12). A movable box (16) for accommodating a bag (18) containing powder has an open end (20). Co-operating guides (22, 24) provided respectively on the housing (10) and on the box (16) constrain movement of the box (16) between a first position in which the open end (20) is closed by the dust shield (14) and a second position in which the open end (20) mates with the powder inlet opening (12) to allow powder from the bag (18) to fall through the powder inlet opening (12). Thereby, discharge of the powder contents of a flexible material bag can be achieved in a convenient manner.

    摘要翻译： 该装置包括在其上表面（13）中具有粉末入口（12）的壳体（10）。 防尘罩（14）从靠近所述粉末入口（12）的上表面（13）竖立起来。 用于容纳含有粉末的袋子（18）的活动盒（16）具有开口端（20）。 分别设置在壳体（10）和箱体（16）上的配合导向器（22,24）限制箱体（16）在其中开口端（20）被防尘罩 （14）和第二位置，其中开口端（20）与粉末入口（12）配合，以允许来自袋（18）的粉末通过粉末入口（12）落下。 由此，可以以方便的方式实现柔性材料袋的粉末成分的排出。

    Imaging element comprising a hydrophobic photopolymerizable composition and method for producing lithographic plates therewith
    59.
    发明授权
    Imaging element comprising a hydrophobic photopolymerizable composition and method for producing lithographic plates therewith 失效
    包含疏水性光聚合组合物的成像元件及其制造平版印刷版的方法

    公开(公告)号：US5922506A

    公开(公告)日：1999-07-13

    申请号：US539960

    申请日：1995-10-06

    申请人： Yvan Hoogmartens ,  Marc Van Damme ,  Joan Vermeersch ,  Yves Verburgh

    发明人： Yvan Hoogmartens ,  Marc Van Damme ,  Joan Vermeersch ,  Yves Verburgh

    IPC分类号： G03F7/004 ,  G03F7/00 ,  G03F7/027 ,  G03F7/028 ,  G03F7/033 ,  G03F7/038 ,  G03F7/039 ,  G03F7/09 ,  G03F7/095 ,  G03F7/34 ,  G03C1/76 ,  G03F7/26

    CPC分类号： G03F7/0955 ,  G03F7/34

    摘要： The present invention provides a negative-working photosensitive imaging element comprising on a hydrophilic surface of a support in the order given (i) a hydrophobic photopolymerizable composition capable of being irradiated with actinic light through the support and/or through the front and containing at least one unsaturated compound with at least one polymerizable ethylenically unsaturated group, at least one hydrophobic thermoplastic polymer and at least one photoinitiator, and (ii) optionally a receptor layer, characterized in that said hydrophobic photopolymerizable composition comprises in the order given (i) a polymerizable layer contiguous to said hydrophilic surface and comprising at least part of said at least one unsaturated compound and (ii) a hydrophobic photosensitive layer contiguous to said polymerizable layer comprising at least part of said at least one hydrophobic thermoplastic polymer and of said at least one photoinitiator.The present invention also provides a method for obtaining a lithographic plate of high quality with said imaging element.

    摘要翻译： 本发明提供一种负性光敏成像元件，其按照以下顺序包含在载体的亲水性表面上：（i）疏水性光聚合性组合物，其能够通过载体和/或通过前面并通过前部照射光化学光，并且至少含有 一种具有至少一个可聚合烯键式不饱和基团的不饱和化合物，至少一种疏水性热塑性聚合物和至少一种光引发剂，和（ii）任选的受体层，其特征在于所述疏水性可光聚合组合物按照下列顺序包含：（i） 所述至少一部分所述至少一种不饱和化合物和（ii）与所述可聚合层邻接的疏水光敏层，其包含至少部分所述至少一种疏水性热塑性聚合物和所述至少一种光引发剂 。 本发明还提供了一种利用所述成像元件获得高质量的平版印刷版的方法。