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    Blue-sensitive film for radiography with desired image tone
    3.
    发明授权
    Blue-sensitive film for radiography with desired image tone 失效
    用于具有所需图像色调的放射摄影的蓝色感光膜

    公开(公告)号：US06686115B1

    公开(公告)日：2004-02-03

    申请号：US10397115

    申请日：2003-03-26

    申请人： Robert E. Dickerson ,  Richard F. Davis ,  Susan K. Mroczek

    发明人： Robert E. Dickerson ,  Richard F. Davis ,  Susan K. Mroczek

    IPC分类号： G03C517

    CPC分类号： G03C5/16 ,  G03C1/0051 ,  G03C1/047 ,  G03C1/346 ,  G03C1/46 ,  G03C5/17 ,  G03C5/26 ,  G03C2001/0055 ,  G03C2001/03511 ,  G03C2007/3025 ,  G03C2200/27 ,  G03C2200/40 ,  G03C2200/52 ,  Y10S430/167 ,  Y10S430/168

    摘要： A blue-sensitive, radiographic silver halide film comprises a silver halide emulsion layer comprising predominantly tabular silver halide grains that have an aspect ratio of at least 15, a grain thickness of at least 0.1 &mgr;M, and comprise at least 90 mol % bromide and from about 0.5 to about 2.75 mol % iodide, based on total silver halide. Substantially all of the iodide is present in an internal localized portion of the tabular silver halide grains that excludes the surface of the grains. The tabular silver halide grains are dispersed in a hydrophilic polymeric vehicle mixture comprising at least 0.5% of oxidized gelatin, based on the total dry weight of the polymeric vehicle mixture in the emulsion layer. In addition, the tabular grain emulsion includes a mercapto-substituted benzothiazole, benzoxazole, or benzimidazole to provide desired image tone and processability.

    摘要翻译： 蓝色敏感的放射线型卤化银膜包括卤化银乳剂层，其主要包含片状卤化银颗粒，其长宽比至少为15，晶粒厚度为至少0.1μm，并且包含至少90mol％的溴化物和 约0.5至约2.75mol％碘化物，基于总卤化银。 基本上所有的碘化物都存在于不排除颗粒表面的片状卤化银颗粒的局部部分内。 片状卤化银颗粒分散在包含至少0.5％氧化明胶的亲水性聚合物载体混合物中，基于乳液层中聚合物载体混合物的总干重。 此外，片状颗粒乳剂包括巯基取代的苯并噻唑，苯并恶唑或苯并咪唑，以提供所需的图像色调和可加工性。

    Asymmetric contrast portal imaging assembly and method of use
    4.
    发明授权
    Asymmetric contrast portal imaging assembly and method of use 失效
    非对称对比成像组装及使用方法

    公开(公告)号：US06485882B1

    公开(公告)日：2002-11-26

    申请号：US09894775

    申请日：2001-06-28

    申请人： Robert E. Dickerson ,  William E. Moore

    发明人： Robert E. Dickerson ,  William E. Moore

    IPC分类号： G03C146

    CPC分类号： G03C5/16 ,  G03C1/035 ,  G03C1/09 ,  G03C1/46 ,  G03C5/17 ,  G03C2001/03517 ,  G03C2001/03541 ,  G03C2001/094 ,  G03C2007/3025 ,  G03C2200/26 ,  G03C2200/52 ,  Y10S430/167 ,  Y10S430/168

    摘要： A radiographic imaging assembly has a first radiographic silver halide film that provides high contrast images in association with a second radiographic silver halide film that provides lower contrast images. The combination of two films, with or without one or more fluorescent intensifying screens, provides images with excellent contrast and improved exposure latitude for use in various exposure conditions and equipment. The ratio of contrast of images provided by the first and second radiographic silver halide films is at least 1.25.

    摘要翻译： 放射摄影成像组件具有第一放射线照相卤化银膜，其提供与提供较低对比度图像的第二放射线照相卤化银膜相关联的高对比度图像。 具有或不具有一个或多个荧光增强屏幕的两个膜的组合提供了在各种曝光条件和设备中使用的具有优异对比度和改善的曝光宽容度的图像。 由第一和第二射线照相卤化银膜提供的图像的对比度比至少为1.25。

    Hand-held processing container with vacuum creating assembly and kit for roomlight processing of black-and-white photographic elements
    8.
    发明授权
    Hand-held processing container with vacuum creating assembly and kit for roomlight processing of black-and-white photographic elements 失效
    带真空成型组件的手持式处理容器和黑白摄影元件的室内处理套件

    公开(公告)号：US5956539A

    公开(公告)日：1999-09-21

    申请号：US92283

    申请日：1998-06-05

    申请人： Alan S. Fitterman ,  Robert E. Dickerson ,  Peter J. Kelch ,  Ronald J. Perry ,  David G. Sherburne ,  Nathan J. Romano

    发明人： Alan S. Fitterman ,  Robert E. Dickerson ,  Peter J. Kelch ,  Ronald J. Perry ,  David G. Sherburne ,  Nathan J. Romano

    IPC分类号： G03C1/005 ,  G03C1/36 ,  G03C1/83 ,  G03C5/16 ,  G03C5/26 ,  G03C5/38 ,  G03D3/06 ,  G03D13/06 ,  G03D13/04

    CPC分类号： G03D3/06 ,  G03C1/36 ,  G03C5/26 ,  G03C5/261 ,  G03C5/264 ,  G03C5/383 ,  G03D13/06 ,  G03C1/0051 ,  G03C1/832 ,  G03C5/16

    摘要： Black-and-white elements, such as radiographic films, can be processed in roomlight because they include certain light absorbing dyes and desensitizers. Processing of such elements can be achieved using a processing kit and a two-stage process carried out in the same light- and fluid-tight processing apparatus. In the first stage, development is initiated with a developing composition having a pH of from about 10 to about 12.5, and comprising an appropriate black-and-white developing agent and a sulfite. After an appropriate time, a non-sulfite fixing agent is introduced into the processing apparatus or container to provide a combined developing/fixing composition, and development and fixing are carried out simultaneously. The processing method is carried out quickly, usually within about 90 seconds. The presence of sulfite and high pH in both stages decolorizes or deactivates the particulate dyes. The processing kit includes the photographic element, a first vessel containing a developing composition, a second vessel containing fixing composition, and a hand-held container for holding one or more exposed photographic elements. The container has a manually actuated assembly for creating a vacuum within said container in order to draw developing and fixing compositions into said container to contact and develop the exposed photographic element.

    摘要翻译： 黑白元素，如放射照相胶片，可在室温下进行处理，因为它们包括某些光吸收染料和脱敏剂。 可以使用在相同的光和流体密封处理装置中执行的处理套件和两阶段处理来实现这些元件的处理。 在第一阶段中，开发具有pH为约10至约12.5的显影组合物，并且包含适当的黑白显影剂和亚硫酸盐。 在适当的时间之后，将非亚硫酸盐固定剂引入加工设备或容器中以提供组合的显影/定影组合物，同时进行显影和定影。 处理方法快速进行，通常在约90秒内。 两相中亚硫酸盐和高pH值的存在使颗粒状染料脱色或失活。 处理套件包括照相元件，含有显影组合物的第一容器，含固定组合物的第二容器和用于保持一个或多个曝光的照相元件的手持容器。 容器具有用于在所述容器内产生真空的手动致动组件，以便将组合物展开和固定到所述容器中以接触和显影曝光的照相元件。

    Radiographic elements that satisfy image and tone requirements with minimal silver
    9.
    发明授权
    Radiographic elements that satisfy image and tone requirements with minimal silver 失效
    满足图像和色调要求的射线照相元件，最小银

    公开(公告)号：US5800976A

    公开(公告)日：1998-09-01

    申请号：US864421

    申请日：1997-05-28

    申请人： Robert E. Dickerson ,  Anthony Adin ,  Marcia K. Hansen

    发明人： Robert E. Dickerson ,  Anthony Adin ,  Marcia K. Hansen

    IPC分类号： G03C1/005 ,  G03C1/04 ,  G03C1/053 ,  G03C1/35 ,  G03C5/16

    CPC分类号： G03C5/16 ,  G03C1/35 ,  G03C1/0051 ,  G03C1/04 ,  G03C1/053 ,  G03C2200/58 ,  Y10S430/167

    摘要： A dual-coated radiographic element is disclosed comprised of a blue tinted film support having coated on each of its faces a spectrally sensitized high bromide tabular grain emulsion. The properties of a maximum density of at least 3.0, an average contrast of at least 2.7, and a b* value more negative than -5.0 at a silver coating coverage on each major surface of the support of less than 12 mg/dm.sup.2, are imparted by (1) the support having a neutral density of at least 0.18, (2) tabular grains accounting for at least 90 percent of total grain projected area having a mean thickness of 0.2 micrometer or less and a coefficient of variation of equivalent circular diameter less than 20 percent, (3) a covering power enhancing compound containing at least one divalent sulfur atom adsorbed to surfaces of the silver halide grains, (4) a water soluble polymer chosen from the class consisting of polyacrylamide and dextran, in a weight ratio of the polymer to the gelatino-vehicle of at least 0.1:1, and (5) hardening of the gelatino-vehicle being chosen to allow a weight gain following processing and before drying of greater than 200 percent, based on the total weight of gelatino-vehicle.

    摘要翻译： 公开了一种双重涂层射线照相元件，其包括在其每个面上涂覆有光谱增感的高溴化物片状颗粒乳剂的蓝色着色膜载体。 赋予至少3.0的最大密度，至少2.7的平均对比度和在载体的每个主表面上的银涂层覆盖率小于-5.0的ab *值的性质小于12mg / dm 2 通过（1）具有至少0.18的中性密度的载体，（2）片状颗粒占总颗粒投影面积的至少90％，平均厚度为0.2微米或更小，并且等效圆直径的变化系数较小 （3）覆盖能量增强化合物，其含有至少一个二价硫原子吸附在卤化银颗粒的表面，（4）选自聚丙烯酰胺和葡聚糖的水溶性聚合物，其重量比为 所述聚合物至明胶载体为至少0.1:1，和（5）明胶载体的硬化被选择为允许加工后的干重之前的重量增加大于200％，基于明胶 - 车辆。

    Low crossover radiographic elements capable of being rapidly processed
    10.
    发明授权
    Low crossover radiographic elements capable of being rapidly processed 失效
    能够快速处理的低交叉射线照相元件

    公开(公告)号：US5576156A

    公开(公告)日：1996-11-19

    申请号：US593193

    申请日：1996-01-29

    申请人： Robert E. Dickerson

    发明人： Robert E. Dickerson

    IPC分类号： G03C1/00 ,  G03C1/035 ,  G03C1/40 ,  G03C1/46 ,  G03C1/83 ,  G03C5/16

    CPC分类号： G03C5/16 ,  G03C1/46 ,  G03C1/832 ,  G03C2200/58 ,  Y10S430/167

    摘要： A radiographic element is disclosed having emulsion layers coated on opposite surfaces of a transparent film support. To facilitate rapid processing the emulsion layers are fully forehardened and less than 35 mg/dm.sup.2 of hydrophilic colloid is coated on each major surface. To reduce crossover and hydrophilic colloid, emulsions on the opposite sides of the support are each divided into two layers with the layer coated nearest the support containing a particulate dye capable of being decolorized during processing. Particulate dye and silver halide grains together account for between 30 and 70 percent of the total weight of the emulsion layers. Combined with the use of spectrally sensitized tabular grain emulsions crossover can be reduced to less than 15 percent while processing can be completed in less than 45 seconds. The distribution of hydrophilic colloid and silver halide grains chosen achieves low wet pressure sensitivity.

    摘要翻译： 公开了一种放射线照相元件，其具有涂覆在透明膜支撑体的相对表面上的乳剂层。 为了促进快速加工，乳液层被完全预硬化，并且在每个主表面上涂覆小于35mg / dm 2的亲水胶体。 为了减少交叉和亲水胶体，将支撑体相对侧上的乳液分成两层，其中最接近载体的层包含能够在加工过程中脱色的颗粒染料。 颗粒状染料和卤化银颗粒一起占乳液层总重量的30-70％。 结合使用光谱敏化片状颗粒乳剂交联可以减少到小于15％，而处理可以在少于45秒内完成。 选择的亲水胶体和卤化银颗粒的分布实现了低湿压敏感性。