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12.Device for determining proper color balance in color printing 失效
Title translation: 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
Applicant: UNILUX GRAPHICS INC
Inventor: SMAJO J
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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公开(公告)号:US2337534A
公开(公告)日:1943-12-28
申请号:US39805941
申请日:1941-06-14
Applicant: BARBER ALFRED W
Inventor: BARBER ALFRED W
IPC: G01J1/14
CPC classification number: G01J1/14
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公开(公告)号:US1858340A
公开(公告)日:1932-05-17
申请号:US37190529
申请日:1929-06-18
Applicant: HARRY B NOBLE
Inventor: OSBORNE GUY E
IPC: G01J1/14
CPC classification number: G01J1/14
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公开(公告)号:US1697928A
公开(公告)日:1929-01-08
申请号:US12236626
申请日:1926-07-14
Applicant: OSBORNE GUY E
Inventor: OSBORNE GUY E
IPC: G01J1/14
CPC classification number: G01J1/14
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公开(公告)号:US1649964A
公开(公告)日:1927-11-22
申请号:US73310524
申请日:1924-08-20
Applicant: ELECTRICAL TESTING LAB
Inventor: LITTLE WILLIAM F
IPC: G01J1/14
CPC classification number: G01J1/14
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公开(公告)号:US2399992A
公开(公告)日:1946-05-07
申请号:US45039742
申请日:1942-07-10
Applicant: DYE GLEN M
Inventor: DYE GLEN M
IPC: G01J1/14
CPC classification number: G01J1/14
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公开(公告)号:US2226167A
公开(公告)日:1940-12-24
申请号:US30687339
申请日:1939-11-30
Applicant: EASTMAN KODAK CO
Inventor: WARREN GILLON JOHN
IPC: G01J1/14
CPC classification number: G01J1/14
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