Device for determining proper color balance in color printing
    12.
    发明授权
    Device for determining proper color balance in color printing 失效
    用于确定彩色打印中适当颜色平衡的设备

    公开(公告)号:US3718397A

    公开(公告)日:1973-02-27

    申请号:US3718397D

    申请日:1971-05-14

    Inventor: SMAJO J

    CPC classification number: G01J1/14 G03B27/72

    Abstract: A step-wedge is reprinted four times, one for each of three colors plus black and white as a mask. The reprinting is in a different position each time, giving a total of four different positions with one selected value overprinted by each color to show the effect of the overprint, namely to demonstrate a neutral. If a neutral gray is obtained, then it is known that the printing is correct. If no neutral is obtained, a ready reference, not requiring the use of a densitometer or separation filters is immediately at hand.

    Abstract translation: 四分之一片重新印刷四次,一种为三种颜色之一,加上黑色和白色作为面具。 每次转印都处于不同的位置,总共提供四个不同的位置,其中一个选定的值由每种颜色打印,以显示叠印的效果,即展示中性。 如果获得中性灰色,则知道打印正确。 如果没有获得中性,就可以立即提供不需要使用密度计或分离过滤器的现成参考。

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