公开(公告)号：US5952162A

公开(公告)日：1999-09-14

申请号：US972912

申请日：1997-11-18

Applicant: Robert E. Dickerson ,  Wray E. Paul

Inventor： Robert E. Dickerson ,  Wray E. Paul

IPC: G03C1/005 ,  G03C1/46 ,  G03C1/83 ,  G03C5/02 ,  G03C5/16 ,  G03C5/26 ,  G03C1/815

CPC classification number: G03C1/46 ,  G03C5/16 ,  G03C1/005 ,  G03C1/832 ,  G03C5/02 ,  G03C5/26 ,  Y10S430/146 ,  Y10S430/164 ,  Y10S430/167

Abstract: A silver halide film for reproducing digitally stored medical diagnostic images through exposure and processing, including development, fixing and drying, in 90 seconds or less is disclosed in which onto a film support transparent to exposing radiation are coated (1) a processing solution permeable front layer unit coated on the front major face of the support capable of absorbing up to 60 percent of the exposing radiation and containing less than 30 mg/dm.sup.2 of hydrophilic colloid and less than 20 mg/dm.sup.2 silver in the form of radiation-sensitive silver halide grains and (2) a processing solution permeable back layer unit coated on the back major face of the support containing less than 40 mg/dm.sup.2 of hydrophilic colloid, silver in the form of radiation-sensitive silver halide grains accounting for from 40 to 60 percent of the total radiation-sensitive silver halide present in the film, and a dye capable of providing an optical density of at least 0.50 in the wavelength region of the exposing radiation intended to be recorded and an optical density of less than 0.1 in the visible spectrum at the conclusion of film processing. The film can be exposed by an exposure source such as a cathode ray tube, light emitting diode or laser. In one form, in processing the film one of the layer units having faster silver halide grains is oriented above the remaining layer unit while developer is circulated across the film from a jet located above the layer unit having the faster silver halide grains.

Abstract translation: 公开了一种用于通过曝光和处理（包括显影，定影和干燥）在90秒或更短时间内再现数字存储的医学诊断图像的卤化银膜，其中涂覆在对曝光辐射透明的膜支架上（1） 涂层在支撑体的前主面上的能够吸收高达60％的曝光辐射并且以辐射敏感的卤化银的形式含有小于30mg / dm 2的亲水胶体和小于20mg / dm 2的银的单元层 颗粒和（2）涂覆在载体的背面主面上的处理溶液可渗透层单元，其包含少于40mg / dm 2的亲水胶体，辐射敏感卤化银颗粒形式的银占40至60％ 存在于膜中的总辐射敏感卤化银，以及能够在曝光的波长区域中提供至少0.50的光密度的染料 在薄膜处理结束时，可视光谱的光束密度小于0.1。 该膜可以通过诸如阴极射线管，发光二极管或激光器的曝光源曝光。 在一种形式中，在处理膜时，具有更快卤化银颗粒的层单元之一被定向在剩余层单元上方，而显影剂从位于具有更快卤化银颗粒的层单元上方的喷嘴循环穿过膜。