发明授权
- 专利标题: Films for reproducing digitally stored medical diagnostic images
- 专利标题(中): 用于再现数字存储医疗诊断图像的影片
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申请号: US574508申请日: 1995-12-19
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公开(公告)号: US5637447A公开(公告)日: 1997-06-10
- 发明人: Robert E. Dickerson , Richard E. Beal , Franklin C. Brayer , Stephen A. Hershey , Patrick M. Jeffries
- 申请人: Robert E. Dickerson , Richard E. Beal , Franklin C. Brayer , Stephen A. Hershey , Patrick M. Jeffries
- 申请人地址: NY Rochester
- 专利权人: Eastman Kodak Company
- 当前专利权人: Eastman Kodak Company
- 当前专利权人地址: NY Rochester
- 主分类号: G03C1/035
- IPC分类号: G03C1/035 ; G03C1/295 ; G03C1/83 ; G03C5/16 ; G03C1/005
摘要:
A radiation-sensitive film for reproducing digitally stored medical diagnostic images through a series of laterally offset exposures by a controlled radiation source followed byprocessing in 90 seconds or less including development, fixing and drying is disclosed. The film exhibits an average contrast in the range of from 1.5 to 2.0, measured over a density above fog of from 0.25 to 2.0. An emulsion is provided in which silver bromochloride grains provided (a) containing at least 10 mole percent bromide, based on silver, (b) having a mean equivalent circular diameter of less than 0.40 .mu.m, (c) exhibiting an average aspect ratio of less than 1.3, and (d) coated at a silver coverage of less than 40 mg/dm.sup.2. Adsorbed to the surfaces of the silver bromochloride grains is at least one spectral sensitizing dye having an absorption half peak bandwidth in the spectral region of exposure by the controlled exposure source. The film also contains an infrared opacifying dye capable of reducing specular transmission through the film before, during and after processing to less than 50 percent, measured at a wavelength within the spectral region of from 850 to 1100 nm.
公开/授权文献
- US5018418A Apparatus for cutting laminated sheet material 公开/授权日:1991-05-28
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