Visually adaptive radiographic film and imaging assembly
    2.
    发明授权
    Visually adaptive radiographic film and imaging assembly 失效
    视觉自适应放射照相胶片和成像组件

    公开(公告)号:US06358661B1

    公开(公告)日:2002-03-19

    申请号:US09706981

    申请日:2000-11-06

    IPC分类号: G03C146

    摘要: High performance radiographic films exhibit visually adaptive contrast when imaged in radiographic imaging assemblies comprising an intensifying screen on both sides. These films having a single silver halide emulsion on each side of a film support and are free of particulate dyes that are conventionally used to control crossover. In addition, the films can be rapidly processed to provide the desired image having visually adaptive contrast, that is the upper scale contrast is at least 1.5 times the lower scale contrast. Thus, dense objects can be better seen at the higher densities of the radiographic image without any adverse sensitometric changes in the lower scale densities. These films are useful for general-purpose radiographic imaging using a wide variety of exposure and processing conditions.

    摘要翻译: 当在包括两侧的增强屏幕的射线成像组件中成像时,高性能射线照相胶片呈现视觉上适应的对比度。 这些膜在膜载体的每一侧上具有单一卤化银乳剂,并且不含通常用于控制交叉的颗粒状染料。 此外,可以快速处理胶片以提供具有视觉上自适应对比度的期望图像,即,较高比例对比度至少为下一级对比度的1.5倍。 因此,可以在放射照相图像的较高密度下更好地观察到致密物体,而在较低刻度密度中没有任何不利的感光度变化。 这些膜对于使用各种曝光和加工条件的通用射线照相成像是有用的。

    Coating composition for photographic materials
    3.
    发明授权
    Coating composition for photographic materials 失效
    照相材料用涂料组合物

    公开(公告)号:US06911302B2

    公开(公告)日:2005-06-28

    申请号:US10704003

    申请日:2003-11-07

    摘要: A coating composition for use in a photographic element, the composition comprising an aqueous solution of: two or more surfactants; a hydrophilic binder; and optional matte particles; wherein one of the surfactants is represented by the following Formula (I): Rf—CH2CH2—(B)y-A  (I) where Rf is F(CF2CF2)n— and n is 3 and 4 or 3, 4, and 5, and the fraction of all Rf with n=3 is at least 40%; B is a divalent linking group; y is 0 or 1; and A is an anionic group with a counterion or an amphoteric group. A photographic element containing the coating composition is also disclosed.

    摘要翻译: 一种用于照相元件的涂料组合物,该组合物包含两种或更多种表面活性剂的水溶液; 亲水性粘合剂; 和可选的磨砂颗粒; 其中一种表面活性剂由下式(I)表示:<?in-line-formula description =“In-line formula”end =“lead”?> R < &lt;&lt;&lt;&lt;&lt;&lt;&gt; -A(I)&lt;&lt;行内公式描述=“在线公式”end =“ 尾“→>其中R f是F(CF 2 CH 2)n - n且n是3,并且 4或3,4和5,并且n = 3的所有R f的分数为至少40%; B是二价连接基团; y为0或1; 而A是具有抗衡离子或两性基团的阴离子基团。 还公开了含有涂料组合物的照相元件。