发明公开
EP0525520A2 Screening and color reproduction system in offset printing
失效
Rasterungssystem und Farbreproduktionsverfahren beim Offsetdruck。
- 专利标题： Screening and color reproduction system in offset printing
- 专利标题（中）： Rasterungssystem und Farbreproduktionsverfahren beim Offsetdruck。
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申请号： EP92112110.9申请日： 1992-07-15
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公开(公告)号： EP0525520A2公开(公告)日： 1993-02-03
- 发明人: Delabastita, Paul A.
- 申请人： MILES INC.
- 申请人地址： Agfa Division 200 Ballardvale Street Wilmington Massachusetts 01887-1011 US
- 专利权人： MILES INC.
- 当前专利权人： MILES INC.
- 当前专利权人地址： Agfa Division 200 Ballardvale Street Wilmington Massachusetts 01887-1011 US
- 代理机构： Strasse, Joachim, Dipl.-Ing.
- 优先权： US735644 19910725
- 主分类号： H04N1/46
- IPC分类号： H04N1/46 ; H04N1/52
摘要：
A screening system and method are disclosed for reproduction of images in printing. The screening angles that are used are close, but not identical to conventional screening angles. The reproduction is nevertheless Moire free by the fact that the deviations in angles from the conventional system are exactly offset by the deviations in line rulings. The screening system is particularly advantageous when used for combinations of screens with rational tangent angles. The Moire free combination of rational tangent screens can be rotated by a constant angle with the amount of rotation controlled in small increments.
公开/授权文献
- EP0525520B1 Screening and color reproduction system in offset printing 公开/授权日：1997-05-07
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